THE HYBRID active/passive electromagnetic interference

Size: px
Start display at page:

Download "THE HYBRID active/passive electromagnetic interference"

Transcription

1 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 54, NO. 4, AUGUST Analysis of Insertion Loss and Impedance Compatibility of Hybrid EMI Filter Based on Equivalent Circuit Model Wenjie Chen, Student Member, IEEE, Xu Yang, Member, IEEE, and Zhaoan Wang, Senior Member, IEEE Abstract The hybrid active electromagnetic interference filter HAEF) is considered one of the best options for improving power quality for a number of considerations. A systematic classification and identification of HAEF configurations is given, including their insertion losses, impedance compatibilities, potential applications, and comparative features. It is aimed at providing a broad perspective on the status of HAEF technology to researchers and application engineers dealing with EMI issues. The basis of discussion is an equivalent circuit model that includes all possible combinations of active and passive elements and matches these to the desirable attributes. The evaluation indicates those topologies that are known and those topologies that are relatively new. Index Terms Active filter, electromagnetic interference EMI), hybrid, model. I. INTRODUCTION THE HYBRID active/passive electromagnetic interference EMI) filter HAEF) is one of the key elements that are used in the battle against noise that is being conducted into or out of typical electronic devices. Many papers have discussed and proposed hybrid EMI filters or active EMI filters that are accompanied by a small passive component [1] [10], [12] [15]. Reference [1] gave a general concept of passive and active hybrid EMI filters. In [2], [3], [9], [10], and [12], a small passive filter is coupled with an active circuitry to attenuate the noise. The combination of these two schemes can lead to an improvement in the filter s attenuation performance over a wide frequency range. However, what they mainly focused on was active cancellation circuits, where a few of them seriously characterized and evaluated the hybrid system. Questions are, therefore, raised. How will these two kinds of filter passive and active) combine together when placed in one filter system? Is the attenuation the sum of the individual attenuation of each of the filters in the hybrid system? If there are several kinds of circuit configurations, a third question also comes to mind: How will each hybrid type perform when placed in the same environment? Answers to these questions may help circuit designers anticipate how their products will perform when evaluated for a specific application. Manuscript received November 24, 2005; revised November 17, This work was supported by the National Natural Science Foundation of China under Project The authors are with the State Key Laboratory of Electrical Insulation and Power Equipment, Xi an Jiaotong University, Xi an , China cwj@mail.xjtu.edu.cn). Digital Object Identifier /TIE Fig. 1. Concept of the conduction noise transmission system. In an effort to obtain answers to these questions, hybrid active EMI topologies are identified systematically by the following: describing appropriate models for passive EMI filters; determining the desirable attributes of an active circuit; generating possible topologies in a systematic fashion. This approach uncovers existing and new topologies, and establishes an equivalent circuit model for describing HAEFs. This paper is presented in five parts. Starting with an introduction, the HAEF equivalent circuit model, i.e., a two-port model with three elements, including all possible combinations of active and passive elements, is proposed in Section II. Based on the module, Section III covers the insertion losses ILs) of different configurations used, the impedance compatibilities, their potential applications, and the comparative features. Experimental results are presented in Section IV. Section V is the conclusion. II. EQUIVALENT CIRCUIT MODEL OF HAEF Fig. 1 shows the basic source/filter/load configurations of the system. Z s represents the impedance of the line impedance stabilization network LISN). represents an internal impedance of the noise source. HAEFs for solving EMI noise in power systems can provide the following functions: noise compensation; noise damping; noise isolation. In order to explain the operational principle more clearly, a simplified equivalent model of the passive and active filters is introduced first /$ IEEE

2 2058 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 54, NO. 4, AUGUST 2007 Fig. 3. Typical power line filter and its equivalent circuit. a) Typical power line filter. b) Equivalent circuit. Fig. 2. Generalized block diagram and configuration for active EMI filter. a) Parallel configuration. b) Series configuration. Active EMI filter topologies are generally classified in terms of noise that is sensed current or voltage) and the means of applying the cancellation signal by a current or voltage source). An alternative classification, according to circuit configuration and connections, is introduced in this paper, as shown in Fig. 2, which are of two basic types, namely: 1) parallel and 2) series. In parallel filters, the active component is an equivalent current source. According to the noise voltage or current that has been detected, the cancellation current is i c = A g u s or i c = A i i s. In series filters, the active component is an equivalent voltage source, and the cancellation voltage is u c = A u u s or u c = A r i s in terms of the noise that is sensed. Fig. 3a) shows a typical passive EMI filter configuration. A good filter has generally a common-mode CM) choke of at least a few millihenrys commonly in the range of 3 30 mh). CM capacitors are typically limited by safety considerations for ground leakage to values in the range of nf. The differential-mode DM) choke has a lower value typically < 1 mh) and sometimes does not exist as a discrete component but is made by the few percent leakage inductance of the CM choke. To simplify the discussion here, the initial focus is on canceling CM noise, but the basic technique can be applied equally to canceling DM noise. The equivalent circuit is shown in Fig. 3b). Generalized topologies may be identified by grouping combinations of passive elements with ideal active elements to construct filters of varying complexity. Fig. 4 shows the electrically valid connection for the basic topology. The three elements comprise a two-port network: one port acts as the input, while the other one acts as the output. When the filter is connected Fig. 4. Generalized topologies of HAEFs. to the ac source, as shown in Fig. 1, the input is quiet, and the output is noisy. On the other hand, when the filter is placed between a converter and its load, the input is noisy, and the output is quite. Note that this model can be utilized in various kinds of applications, such as input or output EMI filters and power filters. III. EVALUATION OF TOPOLOGIES Although all these basic HAEF circuits may achieve high attenuation for the EMI noise, they do have advantages and disadvantages respectively when considered from a practical point of view. All of the configurations that are presented may be evaluated in terms of the IL and impedance compatibility. It is aimed at identifying their inherent properties that make them particularly suitable or unsuitable for practical applications. A. IL The IL of a filter that is connected to a given transmission system is defined as the ratio of the voltage appearing across the line immediately beyond the point of insertion before U 1 )

3 CHEN et al.: ANALYSIS OF IL OF HYBRID EMI FILTER BASED ON EQUIVALENT CIRCUIT MODEL 2059 If there are only passive elements Z 1 and Z 2,theILis IL PEF = 1+ Z ) 1 + Z s. 3) Z 2 // That is, the effectiveness of the active component is mainly dependent on impedance Z 2 // and amplifier gain A r.the overall gain of the active filter should be larger than the impedance Z 2 // to obtain the maximum IL. If there is a capacitor load, the impedance decreases with the increase of frequency. Therefore, the type-i filter is more fit for the capacitor load. In Fig. 5b), the additional IL that is introduced by the active component is found as IL 2 = A i + A i Z 1 Z 2 // ). 4) Fig. 5. Comparison of the IL. a) Six types. b) Type-V filter with different gain. and after U 2 ) insertion. Using the A, B, C, and D parameters of the filter, it follows that IL = U 1 U 2 = A + B + CZ s + DZ s 1) where Z s and are the source impedance and load impedance, respectively. It is necessary to notice that the performance of a typical power line filter varies as the source impedance and load impedance vary. That is, filters are usually designed for 50-Ω input impedance and output impedance, but the conditions in real installation are different. In case of a type-i filter, as shown in Fig. 5a), the IL is readily found as IL 1 = 1+ Z 1 + Z s Z 2 // + A r Z 2 // ). 2) This condition implies that the active filter can provide IL irrespective of the passive impedance, particularly at a comparatively low frequency. If the internal impedance of the noise source is pretty larger than the receiver s impedance Z s ),theil can be approximated as gain A i. It means that a type-ii filter is suitable for the noise source that is close to an ideal current source. For good noise attenuation, gains A i should be as large as possible. In practice, to avoid instability, the loop gain must be restricted at high frequency, resulting in limited noise attenuation. As Z 1 /Z 2 // ) increases with frequency, the high-frequency noise is mainly attenuated by passive components. The IL of a type-iii configuration may be mainly determined by the active filter when A r Z 2. That is, the IL will obtain the maximum value no matter what kind of noise source it may be: capacitor, inductor, or fluctuated. It is suitable to all kinds of nonlinear loads. Another advantage of this configuration is that the active filter that is used in this type carried neither supply voltage nor fundamental current. In case of the type-iv filter, the additional IL that is introduced by the active component is found as IL 4 = A r. 5) It means that the IL that is provided by the active filter is always dependent on system impedance, Z s, and.if A r, the passive components may be redundant in this configuration. Under these conditions, the active element supports the entire noise and is equivalent to a single series active element alone. In case of voltage detection and when Z s,il may be as large as A u. It can be successfully applicable if the noise source is close to an ideal voltage source. The same argument can be applicable to the type-v filter. If the internal impedance of the noise source is pretty larger than the receiver s impedance Z s, its IL is proportional to amplifier gain A i. This condition implies that if the noise

4 2060 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 54, NO. 4, AUGUST 2007 TABLE I INSERTION LOSS OF BASIC HAEF TOPOLOGIES source, including its impedance, is close to an ideal current source that has infinite internal impedance, then a type-v filter is suitable for this application. In this manner, the configuration is equivalent to a single parallel filter. The final configuration is of type VI. The IL is dependent on both system impedance and passive impedance. Impedance Z 1 presents high noise and low fundamental impedance. This provides blocking for the noise currents, diverting these to the shunt path that is provided by Z 2. The fundamental current does not flow in the active element and is diverted to Z 1. Impedance Z 2 provides a path for the noise currents and high impedance at the fundamental. The aforementioned analysis is mainly focused on the filter with current-detection method. Table I presents a summary of this evaluation. Specifically, four observations are made. 1) The IL of the hybrid system is greater than the sum of the individual ILs of each of the filters. Although the efficiency of the passive element in the hybrid system is the same with that of a pure passive filter, the ILs of the active circuit in these six types are all increased compared with that of the pure parallel or series active cancellation circuit. It is because the introduction of passive elements changes the source/load impedance of the whole system. That is, there is a mutual or cooperative relationship between the passive and active elements in the hybrid system. 2) With respect to each hybrid type, the difference between the voltage- and current-detection methods only exists in the active part: The former is AZ s, and the latter one is A. This conclusion is consistent with that of the pure active filter. In other words, when Z s A r /A u and, for the type-i, type-iii, and type-iv filters, the voltage-detection method performs better than the current-detection method, and vice versa; for the type-ii, type-v, and type-vi filters, when Z s A i /A g, the current-detection method obtains greater IL than the voltage-detection method, and vice versa. 3) For the type-ii, type-v, and type-vi filters, the active part is the controlled current. The relationship between the active IL of the three types can be described as 1+ Z 1 Z 2 // = A i type-v ) A i type-ii + Z 1 A i Z s + Z 2 // 6) type-vi. It implies that, when considered under the same condition, the type-ii filter will achieve greater IL than that of the type-v and type-vi filters. 4) For the type-i, type-iii, and type-iv filters, a similar relationship also exists, which can be described as Ar ) Z 2 // type-i = Ar Z 2 type-iii + Ar 7) type-iv. Since the passive ILs of these types are identical, the type-i filter will achieve greater IL than the type-iii and type-iv filters. Fig. 5a) shows the IL of the six HAEFs under ideal conditions. In all cases, we assume that the active device has an open-loop gain of , the passive impedance is Z 1 = 15 mh,z 2 =10 nf), and the system impedance is = 100 pf,z s =50Ω). It has been demonstrated that no matter what kind of HAEF it is, the IL is improved compared with the pure passive EMI filter. Focused on the six hybrid types, it is found that ILII) ILV)+ILVI) 8) ILI) ILIII)+ILIV) 9)

5 CHEN et al.: ANALYSIS OF IL OF HYBRID EMI FILTER BASED ON EQUIVALENT CIRCUIT MODEL 2061 TABLE II INPUT/OUTPUT IMPEDANCE OF BASIC HAEF TOPOLOGIES which is exactly in accordance with the aforementioned theoretical analysis. These curves also indicate that, under the assumed conditions, the type-ii hybrid filter can achieve the greatest IL. Fig. 5b) compares the effect of active close-loop gain on the IL, which is analyzed for the type-v filter, and the gain of the active component is 0, 10, 20, and 50, respectively; a similar conclusion may be drawn in other types of filters. It could be seen that, at 10 khz, the hybrid circuit when A =10) improves attenuation by 20 db over the passive-only case when A =0). In addition, with the increase of gain, IL also increases. From the results, it was concluded that the hybrid filter with greater gain will provide more attenuation than that with lower gain. This also emphasizes the fact that loop gain has a significant effect on the performance of the hybrid EMI filter. B. Impedance Compatibility For a selected topology, the attenuation is also determined by the impedance of the filter components and the characteristics of the LISN and drive noise source. Once we can model the impedance-frequency characteristics, the attenuation of the filter along the frequency range of concern can be calculated. The input/output impedance expressions for the basic topologies by different noise detection methods are given in Table II. These impedances, i.e., Z i and Z o, will be used to choose for an appropriate hybrid filter. As illustrated in Fig. 1, when the impedances at port B between the load and the filter are not matching, the highfrequency noise will be reflected at this interface. If Z i the input impedance of the filter) and Z o the output impedance of the filter) are all unequal to its respective outer impedance, i.e., Z s and, the EMI noise will be reflected in both interfaces. Thus, in order to acquire better noise attenuation performance, an EMI filter should be designed in a way to obtain maximum impedance unmatching not only with the load but also with the source. Detailed discussions about the impedance compatibility requirements can be found in [8]. From the results that are shown in Table II, it can be analyzed that, for the topologies of the type-i, type-iii, and type-iv filters, when A u Z s = A r, the impedance Z o are identical. The type-ii, type-v, and type-vi filters have identical output impedance if A g Z s = A i. Thus, the following discussions are mainly based on filter with current detecting method. Compared with pure passive filter output impedance Z 2 //Z 1 + Z s ), the impedance Z o of type-i, type-iii, type-iv, and type-vi filters are all increased to a certain extent. According to impedance unmatching criteria, these topologies are suitable to those sources with small internal impedance. Since there is a distinct improvement in the impedance of the type-iv filter, it is much more fit for the noise source that is close to an ideal voltage source. As Z o of the type-ii and type-v filters decreased, those filters are suitable to the high impedance source. Since the input impedance of the passive filter is Z 1 + Z 2 //, Z i increased in all kinds of hybrid filters with current detection. While for the voltage-detection one, Z i diminished. The former is fit for the low-impedance load, and the latter one is fit for the high-impedance one. The relationship between input/output impedance and frequency is shown in Figs. 6 and 7, respectively. It is necessary to notice that the noise impedance is assumed as = 100 pf, and this is the reason for the similar input impedance curve between the passive component and the type-iii filter. It is also evident from Fig. 7 that type-i and type-iv filters have similar output impedance curve. IV. PRACTICAL FILTER IMPLEMENTATION In this section, several experiments are made to evaluate the performance of the basic topologies. The active EMI filter that

6 2062 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 54, NO. 4, AUGUST 2007 Fig. 6. Comparison of input impedance. Fig. 7. Comparison of output impedance. is proposed in [10] and [11] is used as an extended example of the hybrid active EMI filter. The prototype is shown in Fig. 8. A 600-W power supply for a personal computer operating at 33 khz is used as a high-frequency noise source. A LISN is used to provide the stable source impedance at high frequency, and an E7401A electromagnetic analyzer as well as a CM noise separator is used in the measurement of the conducted CM spectrum. For EMI standard EN55022, the sweep range is in the range of 150 khz 30 MHz. Figs. 9 and 10 show the measured CM spectrum of the equipment under test EUT) with and without LC low-pass EMI filter. For the test, the CM choke that was used was 13 mh, and the Y capacitor that was used was 1 nf. It can be seen that, without any EMI filter, this power supply cannot pass the EN55022 limit over the entire frequency range. Furthermore, it is observed that the low-frequency noise is a major issue to pass the EMI requirement. Without increasing the value of the CM choke or using multistage EMI filters, the noise in the range of MHz cannot be reduced further. Fig. 8. EMI noise measurement setup. a) Active EMI filter. b) EUT. c) Configuration of experiment system. Fig. 11 shows the conducted EMI spectrum when the proposed hybrid active EMI filter is added into the system. Two topologies were tested. In the first topology type-v filter), the active circuit faces the input of the noise source. In the second topology type-ii filter), the Y capacitor faces the input of the noise source. The main consideration we choose these types is that the character of the CM noise source under test is close to a current source. From the result, it was concluded that the topology of the type-ii filter provided more attenuation than that of the type-v filter, which is in accordance with the aforementioned simulations and analysis. This result also emphasizes the fact that impedance compatibility has a significant effect on the performance of the EMI filter. By introducing the combination of active and passive filters, one can dramatically increase the amount of noise attenuation that is attainable for the hybrid system. These two complementary filtering schemes allow for the maximum usage of the injector.

7 CHEN et al.: ANALYSIS OF IL OF HYBRID EMI FILTER BASED ON EQUIVALENT CIRCUIT MODEL 2063 Fig. 9. No EMI filter installed. Fig. 10. Passive EMI filter installed. V. C ONCLUSION Hybrid active EMI filters have been evolved and used in practices as a cost-effective solution for the attenuation of EMI noise. Existing publications focus mainly on the active cancellation circuit. There is a lack of published material that provides a comprehensive analysis of the hybrid active/passive filter. This paper has been aimed at filling this gap. In this paper, we have proposed an equivalent circuit model for HAEF, which includes six possible combinations of passive and active elements. Then, the IL and impedance compatibility of each topology were described in detail. To facilitate the understanding and selection of particular configurations for a given application, the evaluation is based on two main criteria: 1) the circuit configurations of hybrid filters and 2) the noise impedance of the compensated system. This paper has also taken into account the interaction between the passive component and active circuit in HAEF. It Fig. 11. Test results of proposed hybrid topologies. a) HAEF of type-v. b) HAEF of type-ii. is found that the multistage passive filter can be replaced with a small-sized one that deals mainly with high-frequency noise in the hybrid system. While at comparatively lower frequency, the active filter is dominant. The active component s demerit of narrow bandwidth can also be overcome with ease. The HAEF can be considered as a better alternative for EMI noise attenuation, owing to reduced cost, simple design and control, and high reliability compared to pure passive or active filters. This paper has also uncovered several new topologies, which can be further explored. It is obvious from the contribution that a great deal of work still needs to be done. REFERENCES [1] A. C. Chow and D. J. Perreault, Design and evaluation of a hybrid passive/active ripple filter with voltage injection, IEEE Trans. Aerosp. Electron. Syst., vol. 39, no. 2, pp , Apr [2] M. Zhu, D. J. Perreault et al., Design and evaluation of feed-forward active ripple filters, IEEE Trans. Power Electron., vol.20,no.2,pp , Mar

8 2064 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 54, NO. 4, AUGUST 2007 [3] Y.-C. Son and S.-K. Sul, Generalization of active filters for EMI reduction and harmonics compensation, in Proc. 38thIEEE IAS Annu. Meeting, Oct , 2003, pp [4] P. Cantillon-Murphy, An active ripple filtering technique for improving common-mode inductor performance, IEEE Power Electron Lett.,vol.2, no. 2, pp , Jun [5] T. Nussbaumer et al., Differential mode input filter design for a threephase buck-type PWM rectifier based on modeling of the EMC test receiver, IEEE Trans. Ind. Electron., vol. 53, no. 5, pp , Oct [6] B.-R. Lin and C.-H. Huang, Implementation of a three phase capacitor clamped active power filter under unbalanced condition, IEEE Trans. Ind. Electron., vol. 53, no. 5, pp , Oct [7] M. E. Ortúzar et al., Voltage-source active power filter based on multilevel converter and ultracapacitor DC link, IEEE Trans. Ind. Electron., vol. 53, no. 2, pp , Apr [8] D. C. Hamill, An efficient active ripple filter for use in DC-DC conversion, IEEE Trans. Aerosp. Electron. Syst., vol. 32, no. 3, pp , Jul [9] A. C. Chow and D. J. Perreault, Design and evaluation of an active ripple filter using voltage injection, in Proc. IEEE Power Electron. Spec. Conf., Jun , 2001, pp [10] Y. C. Son and S.-K. Sul, A new active common-mode EMI filter for PWM inverter, IEEE Trans. Power Electron., vol. 18, no. 6, pp , Nov [11] B. H. Cho et al., Analysis and design of multi-stage distributed power system, in Proc. INTELEC, 1991, pp [12] W. Chen, X. Yang, and Z. Wang, An active EMI filtering technique for improving passive filter low frequency performance, IEEE Trans. Electromagn. Compat., vol. 48, no. 1, pp , Feb [13] K. Al-Haddad and A. Chandra, A review of active filters for power quality improvement, IEEE Trans. Ind. Electron., vol.46,no.5,pp , Oct [14] N. Mutoh et al., New methods to suppress EMI noises in motor drive systems, IEEE Trans. Ind. Electron., vol. 49, no. 2, pp , Apr [15] D. Rivas et al., Improving passive filter compensation performance with active techniques, IEEE Trans. Ind. Electron., vol.50,no.1,pp , Feb Wenjie Chen S 06) was born in Xi an, China, in She received the B.S. and M.S. degrees in electrical engineering from Xi an Jiaotong University, Xi an, in 1996 and 2002, respectively. She is currently working toward the Ph.D. degree at the same university, with her research focused on the EMI and integration design of power electronics modules. Since 2002, she has been a member of the faculty of the School of Electrical Engineering, Xi an Jiaotong University, where she is currently a Lecturer. Her research interests include soft-switching dc/dc converters and active filters, and power electronic integration. Xu Yang M 02) was born in China in He received the B.S. and Ph.D. degrees in electrical engineering from Xi an Jiaotong University, Xi an, China, in 1994 and 1999, respectively. Since 1999, he has been a member of the faculty of the School of Electrical Engineering, Xi an Jiaotong University, where he is currently a Professor. From November 2004 to November 2005, he was with the Center of Power Electronics Systems, Virginia Polytechnic Institute and State University, Blacksburg, as a Visiting Scholar. He then returned to the School of Electrical Engineering, Xi an Jiaotong University, where he has been engaged in teaching and research in the power electronics and industrial automation areas. His research interests include soft-switching topologies, PWM control techniques and power electronic integration, and packaging technologies. Zhaoan Wang SM 98) was born in Xi an, China, on June 9, He received the B.S. and M.S. degrees from Xi an Jiaotong University, Xi an, in 1970 and 1982, respectively, and the Ph.D. degree from Osaka University, Osaka, Japan, in From 1970 to 1979, he was an Engineer at the Xi an Rectifier Factory. Since 1982, he has been with the School of Electrical Engineering, Xi an Jiaotong University, where he was a Lecturer and is currently a Professor. He has published more than 150 technical papers and has led numerous government and industry-sponsored projects in the areas of power and industrial electronics. He is engaged in research on power conversion systems, harmonics suppression, reactive power compensation and power electronic integration, and active power filters.

MODELLING AND SIMULATION OF DIODE CLAMP MULTILEVEL INVERTER FED THREE PHASE INDUCTION MOTOR FOR CMV ANALYSIS USING FILTER

MODELLING AND SIMULATION OF DIODE CLAMP MULTILEVEL INVERTER FED THREE PHASE INDUCTION MOTOR FOR CMV ANALYSIS USING FILTER MODELLING AND SIMULATION OF DIODE CLAMP MULTILEVEL INVERTER FED THREE PHASE INDUCTION MOTOR FOR CMV ANALYSIS USING FILTER Akash A. Chandekar 1, R.K.Dhatrak 2 Dr.Z.J..Khan 3 M.Tech Student, Department of

More information

Application of Random PWM Technique for Reducing EMI

Application of Random PWM Technique for Reducing EMI International Research Journal of Applied and Basic Sciences 2013 Available online at www.irjabs.com ISSN 2251-838X / Vol, 6 (9): 1237-1242 Science Explorer Publications Application of Random PWM Technique

More information

ISSN: ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 2, Issue 3, May 2013

ISSN: ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 2, Issue 3, May 2013 Power Quality Enhancement Using Hybrid Active Filter D.Jasmine Susila, R.Rajathy Department of Electrical and electronics Engineering, Pondicherry Engineering College, Pondicherry Abstract This paper presents

More information

IN THE high power isolated dc/dc applications, full bridge

IN THE high power isolated dc/dc applications, full bridge 354 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 21, NO. 2, MARCH 2006 A Novel Zero-Current-Transition Full Bridge DC/DC Converter Junming Zhang, Xiaogao Xie, Xinke Wu, Guoliang Wu, and Zhaoming Qian,

More information

A Novel Single-Stage Push Pull Electronic Ballast With High Input Power Factor

A Novel Single-Stage Push Pull Electronic Ballast With High Input Power Factor 770 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 48, NO. 4, AUGUST 2001 A Novel Single-Stage Push Pull Electronic Ballast With High Input Power Factor Chang-Shiarn Lin, Member, IEEE, and Chern-Lin

More information

Improving Passive Filter Compensation Performance With Active Techniques

Improving Passive Filter Compensation Performance With Active Techniques IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 50, NO. 1, FEBRUARY 2003 161 Improving Passive Filter Compensation Performance With Active Techniques Darwin Rivas, Luis Morán, Senior Member, IEEE, Juan

More information

SEVERAL static compensators (STATCOM s) based on

SEVERAL static compensators (STATCOM s) based on 1118 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 35, NO. 5, SEPTEMBER/OCTOBER 1999 A New Type of STATCOM Based on Cascading Voltage-Source Inverters with Phase-Shifted Unipolar SPWM Yiqiao Liang,

More information

ELECTROMAGNETIC interference (EMI) filters have

ELECTROMAGNETIC interference (EMI) filters have IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 2, FEBRUARY 2008 949 Effects of X Capacitors on EMI Filter Effectiveness Hung-I Hsieh, Student Member, IEEE, Jhong-Shu Li, and Dan Chen, Fellow,

More information

A Single Phase Single Stage AC/DC Converter with High Input Power Factor and Tight Output Voltage Regulation

A Single Phase Single Stage AC/DC Converter with High Input Power Factor and Tight Output Voltage Regulation 638 Progress In Electromagnetics Research Symposium 2006, Cambridge, USA, March 26-29 A Single Phase Single Stage AC/DC Converter with High Input Power Factor and Tight Output Voltage Regulation A. K.

More information

An Active Ripple Filtering Technique for Improving Common-Mode Inductor Performance

An Active Ripple Filtering Technique for Improving Common-Mode Inductor Performance An Active Ripple Filtering Technique for Improving Common-Mode Inductor Performance The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.

More information

Design of EMI Filters for DC-DC converter

Design of EMI Filters for DC-DC converter Design of EMI Filters for DC-DC converter J. L. Kotny*, T. Duquesne**, N. Idir** Univ. Lille Nord de France, F-59000 Lille, France * USTL, F-59650 Villeneuve d Ascq, France ** USTL, L2EP, F-59650 Villeneuve

More information

A Novel High-Performance Utility-Interactive Photovoltaic Inverter System

A Novel High-Performance Utility-Interactive Photovoltaic Inverter System 704 IEEE TRANSACTIONS ON POWER ELECTRONICS, OL. 18, NO. 2, MARCH 2003 A Novel High-Performance Utility-Interactive Photovoltaic Inverter System Toshihisa Shimizu, Senior Member, IEEE, Osamu Hashimoto,

More information

A Double ZVS-PWM Active-Clamping Forward Converter: Analysis, Design, and Experimentation

A Double ZVS-PWM Active-Clamping Forward Converter: Analysis, Design, and Experimentation IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 16, NO. 6, NOVEMBER 2001 745 A Double ZVS-PWM Active-Clamping Forward Converter: Analysis, Design, and Experimentation René Torrico-Bascopé, Member, IEEE, and

More information

RECENTLY, the harmonics current in a power grid can

RECENTLY, the harmonics current in a power grid can IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 2, MARCH 2008 715 A Novel Three-Phase PFC Rectifier Using a Harmonic Current Injection Method Jun-Ichi Itoh, Member, IEEE, and Itsuki Ashida Abstract

More information

The unified power quality conditioner: the integration of series and shunt-active filters

The unified power quality conditioner: the integration of series and shunt-active filters Engineering Electrical Engineering fields Okayama University Year 1997 The unified power quality conditioner: the integration of series and shunt-active filters Hideaki Fujita Okayama University Hirofumi

More information

A Modular Single-Phase Power-Factor-Correction Scheme With a Harmonic Filtering Function

A Modular Single-Phase Power-Factor-Correction Scheme With a Harmonic Filtering Function 328 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 50, NO. 2, APRIL 2003 A Modular Single-Phase Power-Factor-Correction Scheme With a Harmonic Filtering Function Sangsun Kim, Member, IEEE, and Prasad

More information

NOWADAYS, it is not enough to increase the power

NOWADAYS, it is not enough to increase the power IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 44, NO. 5, OCTOBER 1997 597 An Integrated Battery Charger/Discharger with Power-Factor Correction Carlos Aguilar, Student Member, IEEE, Francisco Canales,

More information

Electromagnetic Compatibility and Better Harmonic Performance with Seven Level CHB Converter Based PV-Battery Hybrid System

Electromagnetic Compatibility and Better Harmonic Performance with Seven Level CHB Converter Based PV-Battery Hybrid System Electromagnetic Compatibility and Better Harmonic Performance with Seven Level CHB Converter Based PV-Battery Hybrid System A. S. S. Veerendra Babu 1, G. Kiran Kumar 2 1 M.Tech Scholar, Department of EEE,

More information

COMMON mode current due to modulation in power

COMMON mode current due to modulation in power 982 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 14, NO. 5, SEPTEMBER 1999 Elimination of Common-Mode Voltage in Three-Phase Sinusoidal Power Converters Alexander L. Julian, Member, IEEE, Giovanna Oriti,

More information

A Novel Measurement System for the Common-Mode- and Differential-Mode-Conducted Electromagnetic Interference

A Novel Measurement System for the Common-Mode- and Differential-Mode-Conducted Electromagnetic Interference Progress In Electromagnetics Research Letters, Vol. 48, 75 81, 014 A Novel Measurement System for the Common-Mode- and Differential-Mode-Conducted Electromagnetic Interference Qiang Feng *, Cheng Liao,

More information

PI-VPI Based Current Control Strategy to Improve the Performance of Shunt Active Power Filter

PI-VPI Based Current Control Strategy to Improve the Performance of Shunt Active Power Filter PI-VPI Based Current Control Strategy to Improve the Performance of Shunt Active Power Filter B.S.Nalina 1 Ms.V.J.Vijayalakshmi 2 Department Of EEE Department Of EEE 1 PG student,skcet, Coimbatore, India

More information

PARASITIC CAPACITANCE CANCELLATION OF INTE- GRATED CM FILTER USING BI-DIRECTIONAL COU- PLING GROUND TECHNIQUE

PARASITIC CAPACITANCE CANCELLATION OF INTE- GRATED CM FILTER USING BI-DIRECTIONAL COU- PLING GROUND TECHNIQUE Progress In Electromagnetics Research B, Vol. 52, 19 36, 213 PARASITIC CAPACITANCE CANCEATION OF INTE- GRATED CM FITER USING BI-DIRECTIONA COU- PING GROUND TECHNIQUE Hui-Fen Huang and Mao Ye * School of

More information

Bearing Currents and Shaft Voltage Reduction in Dual-Inverter-Fed Open-End Winding Induction Motor With CMV PWM Methods Employing PID

Bearing Currents and Shaft Voltage Reduction in Dual-Inverter-Fed Open-End Winding Induction Motor With CMV PWM Methods Employing PID Bearing Currents and Shaft Voltage Reduction in Dual-Inverter-Fed Open-End Winding Induction Motor With CMV PWM Methods Employing PID T.Rakesh 1, K.Suresh 2 1 PG Scholar (PS), Nalanda Institute of Engineering

More information

Bearing Currents and Shaft Voltage Reduction in Dual-Inverter-Fed Open-End Winding Induction Motor With CMV PWM Methods Employing PID

Bearing Currents and Shaft Voltage Reduction in Dual-Inverter-Fed Open-End Winding Induction Motor With CMV PWM Methods Employing PID Bearing Currents and Shaft Voltage Reduction in Dual-Inverter-Fed Open-End Winding Induction Motor With CMV PWM Methods Employing PID I.Rajya Lakshmi 1 P.V Subba Rao 2 1 PG Scholar (EEE), RK College of

More information

Ripple Reduction Using Seven-Level Shunt Active Power Filter for High-Power Drives

Ripple Reduction Using Seven-Level Shunt Active Power Filter for High-Power Drives D. Prasad et. al. / International Journal of New Technologies in Science and Engineering Vol. 2, Issue 6,Dec 2015, ISSN 2349-0780 Ripple Reduction Using Seven-Level Shunt Active Power Filter for High-Power

More information

A Novel Control Method for Input Output Harmonic Elimination of the PWM Boost Type Rectifier Under Unbalanced Operating Conditions

A Novel Control Method for Input Output Harmonic Elimination of the PWM Boost Type Rectifier Under Unbalanced Operating Conditions IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 16, NO. 5, SEPTEMBER 2001 603 A Novel Control Method for Input Output Harmonic Elimination of the PWM Boost Type Rectifier Under Unbalanced Operating Conditions

More information

Parasitic capacitance cancellation in filter inductors

Parasitic capacitance cancellation in filter inductors Parasitic capacitance cancellation in filter inductors The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation As Published Publisher

More information

Ripple Reduction Using Seven-Level Shunt Active Power Filter for High-Power Drives and Non- Linear Load System

Ripple Reduction Using Seven-Level Shunt Active Power Filter for High-Power Drives and Non- Linear Load System Ripple Reduction Using Seven-Level Shunt Active Power Filter for High-Power Drives and Non- Linear Load System #1 B. Gopinath- P.G Student, #2 Dr. Abdul Ahad- Professor&HOD, NIMRA INSTITUTE OF SCIENCE

More information

CHAPTER 2 EQUIVALENT CIRCUIT MODELING OF CONDUCTED EMI BASED ON NOISE SOURCES AND IMPEDANCES

CHAPTER 2 EQUIVALENT CIRCUIT MODELING OF CONDUCTED EMI BASED ON NOISE SOURCES AND IMPEDANCES 29 CHAPTER 2 EQUIVALENT CIRCUIT MODELING OF CONDUCTED EMI BASED ON NOISE SOURCES AND IMPEDANCES A simple equivalent circuit modeling approach to describe Conducted EMI coupling system for the SPC is described

More information

MODERN switching power converters require many features

MODERN switching power converters require many features IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 19, NO. 1, JANUARY 2004 87 A Parallel-Connected Single Phase Power Factor Correction Approach With Improved Efficiency Sangsun Kim, Member, IEEE, and Prasad

More information

Mitigation of Common mode Noise for PFC Boost Converter by Balancing Technique

Mitigation of Common mode Noise for PFC Boost Converter by Balancing Technique Mitigation of Common mode Noise for PFC Boost Converter by Balancing Technique Nasir *, Jon Cobb *Faculty of Science and Technology, Bournemouth University, Poole, UK, nasir@bournemouth.ac.uk, Faculty

More information

Phase Shift Modulation of a Single Dc Source Cascaded H-Bridge Multilevel Inverter for Capacitor Voltage Regulation with Equal Power Distribution

Phase Shift Modulation of a Single Dc Source Cascaded H-Bridge Multilevel Inverter for Capacitor Voltage Regulation with Equal Power Distribution Phase Shift Modulation of a Single Dc Source Cascaded H-Bridge Multilevel Inverter for Capacitor Voltage Regulation with Equal Power Distribution K.Srilatha 1, Prof. V.Bugga Rao 2 M.Tech Student, Department

More information

CHAPTER 4 MEASUREMENT OF NOISE SOURCE IMPEDANCE

CHAPTER 4 MEASUREMENT OF NOISE SOURCE IMPEDANCE 69 CHAPTER 4 MEASUREMENT OF NOISE SOURCE IMPEDANCE 4.1 INTRODUCTION EMI filter performance depends on the noise source impedance of the circuit and the noise load impedance at the test site. The noise

More information

DIGITAL SIMULATION OF MULTILEVEL INVERTER BASED STATCOM

DIGITAL SIMULATION OF MULTILEVEL INVERTER BASED STATCOM DIGITAL SIMULATION OF MULTILEVEL INVERTER BASED STATCOM G.SUNDAR, S.RAMAREDDY Research Scholar, Bharath University Chenna Professor Jerusalam College of Engg. Chennai ABSTRACT This paper deals with simulation

More information

Power Quality Improvement of Distribution Network for Non-Linear Loads using Inductive Active Filtering Method Suresh Reddy D 1 Chidananda G Yajaman 2

Power Quality Improvement of Distribution Network for Non-Linear Loads using Inductive Active Filtering Method Suresh Reddy D 1 Chidananda G Yajaman 2 IJSRD - International Journal for Scientific Research & Development Vol. 3, Issue 03, 2015 ISSN (online): 2321-0613 Power Quality Improvement of Distribution Network for Non-Linear Loads using Inductive

More information

THREE-PHASE converters are used to handle large powers

THREE-PHASE converters are used to handle large powers IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 14, NO. 6, NOVEMBER 1999 1149 Resonant-Boost-Input Three-Phase Power Factor Corrector Da Feng Weng, Member, IEEE and S. Yuvarajan, Senior Member, IEEE Abstract

More information

Photovoltaic Controller with CCW Voltage Multiplier Applied To Transformerless High Step-Up DC DC Converter

Photovoltaic Controller with CCW Voltage Multiplier Applied To Transformerless High Step-Up DC DC Converter Photovoltaic Controller with CCW Voltage Multiplier Applied To Transformerless High Step-Up DC DC Converter Elezabeth Skaria 1, Beena M. Varghese 2, Elizabeth Paul 3 PG Student, Mar Athanasius College

More information

A Series-Connected Multilevel Inverter Topology for Squirrel-Cage Induction Motor Drive

A Series-Connected Multilevel Inverter Topology for Squirrel-Cage Induction Motor Drive Vol.2, Issue.3, May-June 2012 pp-1028-1033 ISSN: 2249-6645 A Series-Connected Multilevel Inverter Topology for Squirrel-Cage Induction Motor Drive B. SUSHMITHA M. tech Scholar, Power Electronics & Electrical

More information

Common and Differential Mode EMI Filters for Power Electronics

Common and Differential Mode EMI Filters for Power Electronics SPEEDAM 28 International Symposium on Power Electronics, Electrical Drives, Automation and Motion Common and Differential Mode EMI Filters for Power Electronics V. Serrao, A. Lidozzi, L. Solero and A.

More information

Systematic Power Line EMI Filter Design for SMPS

Systematic Power Line EMI Filter Design for SMPS Systematic Power Line EMI Filter Design for SMPS uttipon Tarateeraseth ollege of Data Storage Innovation King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand ktvuttip@kmitl.ac.th Kye Yak

More information

THE classical solution of ac dc rectification using a fullwave

THE classical solution of ac dc rectification using a fullwave 630 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 44, NO. 5, OCTOBER 1997 The Discontinuous Conduction Mode Sepic and Ćuk Power Factor Preregulators: Analysis and Design Domingos Sávio Lyrio Simonetti,

More information

The Causes and Impact of EMI in Power Systems; Part 1. Chris Swartz

The Causes and Impact of EMI in Power Systems; Part 1. Chris Swartz The Causes and Impact of EMI in Power Systems; Part Chris Swartz Agenda Welcome and thank you for attending. Today I hope I can provide a overall better understanding of the origin of conducted EMI in

More information

Half bridge converter with LCL filter for battery charging application using DC-DC converter topology

Half bridge converter with LCL filter for battery charging application using DC-DC converter topology Half bridge converter with LCL filter for battery charging application using DC-DC converter topology Manasa.B 1, Kalpana S 2 Assistant Professor Department of Electrical and Electronics PESITM, Shivamogga

More information

Novel Passive Snubber Suitable for Three-Phase Single-Stage PFC Based on an Isolated Full-Bridge Boost Topology

Novel Passive Snubber Suitable for Three-Phase Single-Stage PFC Based on an Isolated Full-Bridge Boost Topology 264 Journal of Power Electronics, Vol. 11, No. 3, May 2011 JPE 11-3-3 Novel Passive Snubber Suitable for Three-Phase Single-Stage PFC Based on an Isolated Full-Bridge Boost Topology Tao Meng, Hongqi Ben,

More information

CHAPTER 2 A SERIES PARALLEL RESONANT CONVERTER WITH OPEN LOOP CONTROL

CHAPTER 2 A SERIES PARALLEL RESONANT CONVERTER WITH OPEN LOOP CONTROL 14 CHAPTER 2 A SERIES PARALLEL RESONANT CONVERTER WITH OPEN LOOP CONTROL 2.1 INTRODUCTION Power electronics devices have many advantages over the traditional power devices in many aspects such as converting

More information

Stability and Dynamic Performance of Current-Sharing Control for Paralleled Voltage Regulator Modules

Stability and Dynamic Performance of Current-Sharing Control for Paralleled Voltage Regulator Modules 172 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 2, MARCH 2002 Stability Dynamic Performance of Current-Sharing Control for Paralleled Voltage Regulator Modules Yuri Panov Milan M. Jovanović, Fellow,

More information

Power Quality Improvement Using Hybrid Power Filter Based On Dual Instantaneous Reactive Power Theory With Hysteresis Current Controller

Power Quality Improvement Using Hybrid Power Filter Based On Dual Instantaneous Reactive Power Theory With Hysteresis Current Controller Power Quality Improvement Using Hybrid Power Filter Based On Dual Instantaneous Reactive Power Theory With Hysteresis Current Controller J.Venkatesh 1, K.S.S.Prasad Raju 2 1 Student SRKREC, India, venki_9441469778@yahoo.com

More information

A SPWM CONTROLLED THREE-PHASE UPS FOR NONLINEAR LOADS

A SPWM CONTROLLED THREE-PHASE UPS FOR NONLINEAR LOADS http:// A SPWM CONTROLLED THREE-PHASE UPS FOR NONLINEAR LOADS Abdul Wahab 1, Md. Feroz Ali 2, Dr. Abdul Ahad 3 1 Student, 2 Associate Professor, 3 Professor, Dept.of EEE, Nimra College of Engineering &

More information

Simulation of Three Phase Cascaded H Bridge Inverter for Power Conditioning Using Solar Photovoltaic System

Simulation of Three Phase Cascaded H Bridge Inverter for Power Conditioning Using Solar Photovoltaic System Simulation of Three Phase Cascaded H Bridge Inverter for Power Conditioning Using Solar Photovoltaic System 1 G.Balasundaram, 2 Dr.S.Arumugam, 3 C.Dinakaran 1 Research Scholar - Department of EEE, St.

More information

Techniques for Input Ripple Current Cancellation: Classification and Implementation

Techniques for Input Ripple Current Cancellation: Classification and Implementation 1144 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 15, NO. 6, NOVEMBER 2000 Techniques for Input Ripple Current Cancellation: Classification and Implementation N. K. Poon, Member, IEEE, J. C. P. Liu, Member,

More information

Single-Wire Current-Share Paralleling of Current-Mode-Controlled DC Power Supplies

Single-Wire Current-Share Paralleling of Current-Mode-Controlled DC Power Supplies 780 IEEE TRANSACTION ON INDUSTRIAL ELECTRONICS, VOL. 47, NO. 4, AUGUST 2000 Single-Wire Current-Share Paralleling of Current-Mode-Controlled DC Power Supplies Chang-Shiarn Lin and Chern-Lin Chen, Senior

More information

Design & Implementation of a practical EMI filter for high frequencyhigh power dc-dc converter according to MIL-STD-461E

Design & Implementation of a practical EMI filter for high frequencyhigh power dc-dc converter according to MIL-STD-461E Design & Implementation of a practical EMI filter for high frequencyhigh power dc-dc converter according to MIL-STD-461E Ashish Tyagi 1, Dr. Jayapal R. 2, Dr. S. K. Venkatesh 3, Anand Singh 4 1 Ashish

More information

Mixed Mode EMI Noise Level Measurement in SMPS

Mixed Mode EMI Noise Level Measurement in SMPS American Journal of Applied Sciences 3 (5): 1824-1830, 2006 ISSN 1546-9239 2006 Science Publications Mixed Mode EMI Noise Level Measurement in SMPS 1 R.Dhanasekaran, 1 M.Rajaram and 2 S.N.Sivanandam 1

More information

Parallel Resonance Effect on Conducted Cm Current in Ac/Dc Power Supply

Parallel Resonance Effect on Conducted Cm Current in Ac/Dc Power Supply International Journal of Engineering Science Invention ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 Volume 2 Issue 6 ǁ June. 2013 ǁ PP.31-35 Parallel Resonance Effect on Conducted Cm Current in Ac/Dc

More information

Reducing the Fault Current and Overvoltage in a Distribution System with an Active Type SFCL Employed PV System

Reducing the Fault Current and Overvoltage in a Distribution System with an Active Type SFCL Employed PV System Reducing the Fault Current and Overvoltage in a Distribution System with an Active Type SFCL Employed PV System M.S.B Subrahmanyam 1 T.Swamy Das 2 1 PG Scholar (EEE), RK College of Engineering, Kethanakonda,

More information

466 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 13, NO. 3, MAY A Single-Switch Flyback-Current-Fed DC DC Converter

466 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 13, NO. 3, MAY A Single-Switch Flyback-Current-Fed DC DC Converter 466 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 13, NO. 3, MAY 1998 A Single-Switch Flyback-Current-Fed DC DC Converter Peter Mantovanelli Barbosa, Member, IEEE, and Ivo Barbi, Senior Member, IEEE Abstract

More information

SIMULATION of EMC PERFORMANCE of GRID CONNECTED PV INVERTERS

SIMULATION of EMC PERFORMANCE of GRID CONNECTED PV INVERTERS SIMULATION of EMC PERFORMANCE of GRID CONNECTED PV INVERTERS Qin Jiang School of Communications & Informatics Victoria University P.O. Box 14428, Melbourne City MC 8001 Australia Email: jq@sci.vu.edu.au

More information

IEEE Transactions On Circuits And Systems Ii: Express Briefs, 2007, v. 54 n. 12, p

IEEE Transactions On Circuits And Systems Ii: Express Briefs, 2007, v. 54 n. 12, p Title A new switched-capacitor boost-multilevel inverter using partial charging Author(s) Chan, MSW; Chau, KT Citation IEEE Transactions On Circuits And Systems Ii: Express Briefs, 2007, v. 54 n. 12, p.

More information

ISSN Vol.03,Issue.07, August-2015, Pages:

ISSN Vol.03,Issue.07, August-2015, Pages: WWW.IJITECH.ORG ISSN 2321-8665 Vol.03,Issue.07, August-2015, Pages:1276-1281 Comparison of an Active and Hybrid Power Filter Devices THAKKALAPELLI JEEVITHA 1, A. SURESH KUMAR 2 1 PG Scholar, Dept of EEE,

More information

Improved Power Quality Bridgeless Isolated Cuk Converter Fed BLDC Motor Drive

Improved Power Quality Bridgeless Isolated Cuk Converter Fed BLDC Motor Drive Improved Power Quality Bridgeless Isolated Cuk Converter Fed BLDC Motor Drive 1 Midhun Mathew John, 2 Phejil K Paul 1 PG Scholar, 2 Assistant Professor, 1 Electrical and Electronics Engineering 1 Mangalam

More information

A Novel Control Method to Minimize Distortion in AC Inverters. Dennis Gyma

A Novel Control Method to Minimize Distortion in AC Inverters. Dennis Gyma A Novel Control Method to Minimize Distortion in AC Inverters Dennis Gyma Hewlett-Packard Company 150 Green Pond Road Rockaway, NJ 07866 ABSTRACT In PWM AC inverters, the duty-cycle modulator transfer

More information

A THREE PHASE SHUNT ACTIVE POWER FILTER FOR HARMONICS REDUCTION

A THREE PHASE SHUNT ACTIVE POWER FILTER FOR HARMONICS REDUCTION A THREE PHASE SHUNT ACTIVE POWER FILTER FOR HARMONICS REDUCTION N.VANAJAKSHI Assistant Professor G.NAGESWARA RAO Professor & HOD Electrical & Electronics Engineering Department Chalapathi Institute of

More information

IN A CONTINUING effort to decrease power consumption

IN A CONTINUING effort to decrease power consumption 184 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 14, NO. 1, JANUARY 1999 Forward-Flyback Converter with Current-Doubler Rectifier: Analysis, Design, and Evaluation Results Laszlo Huber, Member, IEEE, and

More information

Performance Improvement of Bridgeless Cuk Converter Using Hysteresis Controller

Performance Improvement of Bridgeless Cuk Converter Using Hysteresis Controller International Journal of Electrical Engineering. ISSN 0974-2158 Volume 6, Number 1 (2013), pp. 1-10 International Research Publication House http://www.irphouse.com Performance Improvement of Bridgeless

More information

HARMONIC contamination, due to the increment of nonlinear

HARMONIC contamination, due to the increment of nonlinear 612 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 44, NO. 5, OCTOBER 1997 A Series Active Power Filter Based on a Sinusoidal Current-Controlled Voltage-Source Inverter Juan W. Dixon, Senior Member,

More information

Novel Zero-Current-Switching (ZCS) PWM Switch Cell Minimizing Additional Conduction Loss

Novel Zero-Current-Switching (ZCS) PWM Switch Cell Minimizing Additional Conduction Loss IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 49, NO. 1, FEBRUARY 2002 165 Novel Zero-Current-Switching (ZCS) PWM Switch Cell Minimizing Additional Conduction Loss Hang-Seok Choi, Student Member, IEEE,

More information

IN recent years, the development of high power isolated bidirectional

IN recent years, the development of high power isolated bidirectional IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 2, MARCH 2008 813 A ZVS Bidirectional DC DC Converter With Phase-Shift Plus PWM Control Scheme Huafeng Xiao and Shaojun Xie, Member, IEEE Abstract The

More information

Understanding and Optimizing Electromagnetic Compatibility in Switchmode Power Supplies

Understanding and Optimizing Electromagnetic Compatibility in Switchmode Power Supplies Understanding and Optimizing Electromagnetic Compatibility in Switchmode Power Supplies 1 Definitions EMI = Electro Magnetic Interference EMC = Electro Magnetic Compatibility (No EMI) Three Components

More information

Indirect Current Control of LCL Based Shunt Active Power Filter

Indirect Current Control of LCL Based Shunt Active Power Filter International Journal of Electrical Engineering. ISSN 0974-2158 Volume 6, Number 3 (2013), pp. 221-230 International Research Publication House http://www.irphouse.com Indirect Current Control of LCL Based

More information

A Modified Single Phase Inverter Topology with Active Common Mode Voltage Cancellation

A Modified Single Phase Inverter Topology with Active Common Mode Voltage Cancellation A Modified Single Phase Inverter Topology with Active Common Mode Voltage Cancellation A. Rao *, T.A. Lipo University of Wisconsin Madison 1415, Engineering Drive Madison, WI 53706, USA * Email: arao@cae.wisc.edu

More information

ZERO VOLTAGE TRANSITION SYNCHRONOUS RECTIFIER BUCK CONVERTER

ZERO VOLTAGE TRANSITION SYNCHRONOUS RECTIFIER BUCK CONVERTER International Journal of Electrical and Electronics Engineering Research (IJEEER) ISSN(P): 225-155X; ISSN(E): 2278-943X Vol. 4, Issue 3, Jun 214, 75-84 TJPRC Pvt. Ltd. ZERO VOLTAGE TRANSITION SYNCHRONOUS

More information

IJREAT International Journal of Research in Engineering & Advanced Technology, Volume 1, Issue 1, March, 2013 ISSN:

IJREAT International Journal of Research in Engineering & Advanced Technology, Volume 1, Issue 1, March, 2013 ISSN: Simulation and implementation of a modified single phase quasi z source Ac to Ac converter V.Karthikeyan 1 and M.Jayamurugan 2 1,2 EEE Department, SKR Engineering College, Anna University, Chennai,Tamilnadu,India

More information

Precise Analytical Solution for the Peak Gain of LLC Resonant Converters

Precise Analytical Solution for the Peak Gain of LLC Resonant Converters 680 Journal of Power Electronics, Vol. 0, No. 6, November 200 JPE 0-6-4 Precise Analytical Solution for the Peak Gain of LLC Resonant Converters Sung-Soo Hong, Sang-Ho Cho, Chung-Wook Roh, and Sang-Kyoo

More information

THE CONVENTIONAL voltage source inverter (VSI)

THE CONVENTIONAL voltage source inverter (VSI) 134 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 14, NO. 1, JANUARY 1999 A Boost DC AC Converter: Analysis, Design, and Experimentation Ramón O. Cáceres, Member, IEEE, and Ivo Barbi, Senior Member, IEEE

More information

VIENNA RECTIFIER FED BLDC MOTOR

VIENNA RECTIFIER FED BLDC MOTOR VIENNA RECTIFIER FED BLDC MOTOR Dr. P. Sweety Jose #1, R.Gowthamraj *2, #Assistant Professor, * PG Scholar, Dept. of EEE, PSG College of Technology, Coimbatore, India 1psj.eee@psgtech.ac.in, 2 gowtham0932@gmail.com

More information

Research and design of PFC control based on DSP

Research and design of PFC control based on DSP Acta Technica 61, No. 4B/2016, 153 164 c 2017 Institute of Thermomechanics CAS, v.v.i. Research and design of PFC control based on DSP Ma Yuli 1, Ma Yushan 1 Abstract. A realization scheme of single-phase

More information

Design and Simulation of Passive Filter

Design and Simulation of Passive Filter Chapter 3 Design and Simulation of Passive Filter 3.1 Introduction Passive LC filters are conventionally used to suppress the harmonic distortion in power system. In general they consist of various shunt

More information

Active damping of output LC filter resonance for vector controlled VSI- fed AC motor drive

Active damping of output LC filter resonance for vector controlled VSI- fed AC motor drive The International Journal Of Engineering And Science (IJES) Volume 3 Issue 6 Pages 50-56 2014 ISSN (e): 2319 1813 ISSN (p): 2319 1805 Active damping of output LC filter resonance for vector controlled

More information

PARASITIC CAPACITANCE CANCELLATION OF INTE- GRATED EMI FILTER USING SPLIT GROUND STRUC- TURE

PARASITIC CAPACITANCE CANCELLATION OF INTE- GRATED EMI FILTER USING SPLIT GROUND STRUC- TURE Progress In Electromagnetics Research B, Vol. 43, 9 7, PARASITIC CAPACITANCE CANCEATION OF INTE- GRATED EMI FITER USING SPIT GROUND STRUC- TURE H.-F. Huang and M. Ye * School of Electronic and Information

More information

IMPROVED TRANSFORMERLESS INVERTER WITH COMMON-MODE LEAKAGE CURRENT ELIMINATION FOR A PHOTOVOLTAIC GRID-CONNECTED POWER SYSTEM

IMPROVED TRANSFORMERLESS INVERTER WITH COMMON-MODE LEAKAGE CURRENT ELIMINATION FOR A PHOTOVOLTAIC GRID-CONNECTED POWER SYSTEM IMPROVED TRANSFORMERLESS INVERTER WITH COMMON-MODE LEAKAGE CURRENT ELIMINATION FOR A PHOTOVOLTAIC GRID-CONNECTED POWER SYSTEM M. JYOTHSNA M.Tech EPS KSRM COLLEGE OF ENGINEERING, Affiliated to JNTUA, Kadapa,

More information

Mitigation of Current Harmonics with Combined p-q and Id-IqControl Strategies for Fuzzy Controller Based 3Phase 4Wire Shunt Active Filter

Mitigation of Current Harmonics with Combined p-q and Id-IqControl Strategies for Fuzzy Controller Based 3Phase 4Wire Shunt Active Filter Mitigation of Current Harmonics with Combined p-q and Id-IqControl Strategies for Fuzzy Controller Based 3Phase 4Wire Shunt Active Filter V.Balasubramanian 1, T.Rajesh 2, T.Rama Rajeswari 3 P.G. Student,

More information

IT HAS LONG been recognized that bearing damage can be

IT HAS LONG been recognized that bearing damage can be 1042 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 34, NO. 5, SEPTEMBER/OCTOBER 1998 Bearing Currents and Shaft Voltages of an Induction Motor Under Hard- and Soft-Switching Inverter Excitation Shaotang

More information

Design and Implementation of Active EMI Filter for Common-Mode Noise Reduction

Design and Implementation of Active EMI Filter for Common-Mode Noise Reduction Design and Implementation of Active EMI Filter for 1 JPE 16 - - http://dx.doi.org/1.6113/jpe.212.12.4. Design and Implementation of Active EMI Filter for Common-Mode Noise Reduction Kuk-Hee Lee 1, Byuong-Guek

More information

ZCS-PWM Converter for Reducing Switching Losses

ZCS-PWM Converter for Reducing Switching Losses IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 9, Issue 1 Ver. III (Jan. 2014), PP 29-35 ZCS-PWM Converter for Reducing Switching Losses

More information

Enhancement of Power Quality using active power filter in a Medium-Voltage Distribution Network switching loads

Enhancement of Power Quality using active power filter in a Medium-Voltage Distribution Network switching loads Vol.2, Issue.2, Mar-Apr 2012 pp-431-435 ISSN: 2249-6645 Enhancement of Power Quality using active power filter in a Medium-Voltage Distribution Network switching loads M. CHANDRA SEKHAR 1, B. KIRAN BABU

More information

Modeling of Conduction EMI Noise and Technology for Noise Reduction

Modeling of Conduction EMI Noise and Technology for Noise Reduction Modeling of Conduction EMI Noise and Technology for Noise Reduction Shuangching Chen Taku Takaku Seiki Igarashi 1. Introduction With the recent advances in high-speed power se miconductor devices, the

More information

Linear Transformer based Sepic Converter with Ripple Free Output for Wide Input Range Applications

Linear Transformer based Sepic Converter with Ripple Free Output for Wide Input Range Applications Linear Transformer based Sepic Converter with Ripple Free Output for Wide Input Range Applications Karthik Sitapati Professor, EEE department Dayananda Sagar college of Engineering Bangalore, India Kirthi.C.S

More information

Hybrid Active Power Filters for Reactive Power Compensation with Adaptive DC-Link Voltage Control

Hybrid Active Power Filters for Reactive Power Compensation with Adaptive DC-Link Voltage Control International Journal of Scientific Engineering and Research (IJSER) Hybrid Active Power Filters for Reactive Power Compensation with Adaptive DC-Link Voltage Control Rahul Kumar Patel 1, S. Subha 2 Abstract:

More information

ZVT Buck Converter with Synchronous Rectifier

ZVT Buck Converter with Synchronous Rectifier IJSTE - International Journal of Science Technology & Engineering Volume 3 Issue 8 February 217 ISSN (online): 2349-784X ZVT Buck Converter with Synchronous Rectifier Preenu Paul Assistant Professor Department

More information

Analysis and Design of a Bidirectional Isolated buck-boost DC-DC Converter with duel coupled inductors

Analysis and Design of a Bidirectional Isolated buck-boost DC-DC Converter with duel coupled inductors Analysis and Design of a Bidirectional Isolated buck-boost DC-DC Converter with duel coupled inductors B. Ramu M.Tech (POWER ELECTRONICS) EEE Department Pathfinder engineering college Hanmakonda, Warangal,

More information

Cascaded Two Level Electrical Converter-Based Multilevel STATCOM for High Power Utilization

Cascaded Two Level Electrical Converter-Based Multilevel STATCOM for High Power Utilization Cascaded Two Level Electrical Converter-Based Multilevel STATCOM for High Power Utilization D.Nagaraju M.Tech-PE, Vidya Bharathi Institute of Technology, T.S, India. L.Ramesh Associate Professor, Vidya

More information

THE TWO TRANSFORMER active reset circuits presented

THE TWO TRANSFORMER active reset circuits presented 698 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I: FUNDAMENTAL THEORY AND APPLICATIONS, VOL. 44, NO. 8, AUGUST 1997 A Family of ZVS-PWM Active-Clamping DC-to-DC Converters: Synthesis, Analysis, Design, and

More information

MOST electrical systems in the telecommunications field

MOST electrical systems in the telecommunications field IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 46, NO. 2, APRIL 1999 261 A Single-Stage Zero-Voltage Zero-Current-Switched Full-Bridge DC Power Supply with Extended Load Power Range Praveen K. Jain,

More information

Grounding Effect on Common Mode Interference of Coal Mine Inverter

Grounding Effect on Common Mode Interference of Coal Mine Inverter 202 International Conference on Computer Technology and Science (ICCTS202) IPCSIT vol. 47 (202) (202) IACSIT Press, Singapore Grounding Effect on Common Mode Interference of Coal Mine Inverter SUN Ji-ping,

More information

e-issn: p-issn:

e-issn: p-issn: Available online at www.ijiere.com International Journal of Innovative and Emerging Research in Engineering e-issn: 2394-3343 p-issn: 2394-5494 PFC Boost Topology Using Average Current Control Method Gemlawala

More information

Three Level Three Phase Cascade Dual-Buck Inverter With Unified Pulsewidth Modulation

Three Level Three Phase Cascade Dual-Buck Inverter With Unified Pulsewidth Modulation IOSR Journal of Engineering (IOSRJEN) e-issn: 2250-3021, p-issn: 2278-8719 Vol. 3, Issue 4 (July. 2013), V1 PP 38-43 Three Level Three Phase Cascade Dual-Buck Inverter With Unified Pulsewidth Modulation

More information

Shunt Active Power Filter for Compensation of System Harmonics

Shunt Active Power Filter for Compensation of System Harmonics Volume 5, Issue 1 (February, 018) E-ISSN : 48-7 P-ISSN : 454-1 Shunt Active Power Filter for of System Harmonics Badal Devanand Umare 1, A. S. Sindekar 1 PG Scholar, HOD, Department of Electrical Engineering,

More information

THE demand for high-voltage high-power inverters is

THE demand for high-voltage high-power inverters is 922 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 62, NO. 2, FEBRUARY 2015 A Single-Phase Cascaded Multilevel Inverter Based on a New Basic Unit With Reduced Number of Power Switches Ebrahim Babaei,

More information

IN MANY industrial applications, ac machines are preferable

IN MANY industrial applications, ac machines are preferable IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 46, NO. 1, FEBRUARY 1999 111 Automatic IM Parameter Measurement Under Sensorless Field-Oriented Control Yih-Neng Lin and Chern-Lin Chen, Member, IEEE Abstract

More information

Common-Mode Noise Cancellation in Switching-Mode Power Supplies Using an Equipotential Transformer Modeling Technique

Common-Mode Noise Cancellation in Switching-Mode Power Supplies Using an Equipotential Transformer Modeling Technique Title Common-Mode Noise Cancellation in Switching-Mode Power Supplies Using an Equipotential Transformer Modeling Technique Author(s) Chan, YP; Pong, BMH; Poon, NK; Liu, JCP Citation Ieee Transactions

More information