A Novel Control Strategy for the Power Supply to Achieve the 45 T / 600 ms Flat-Top Field
|
|
- Anissa Craig
- 5 years ago
- Views:
Transcription
1 Weiwei LIU, Hongfa DING 1, Xianzhong DUAN 1, Liang LI 1, Fritz HERLACH 2 Huazhong University of Science and Technology (1), Katholieke Universiteit, Leuven (2) A Novel Control Strategy for the Power Supply to Achieve the 45 T / 6 s Flat-Top Field Abstract. In order to achieve the 45 T / 6 s flat-top field, one type of high-field quasi-continuous agnets (HFQCM) and a power supply syste related are now under construction at the Wuhan National High Magnetic Field Center (WHMFC). Considering the teperature rise of the agnet and ripple iniization, the topology and the novel repetitive control ethod of the power supply syste is detailed. Siulated results are provided to validate the proposed ethod. Streszczenie. Aby wytworzyć pole agnetyczne 45 T/6 s opracowano specjalny typ układu zasilającego. Uwzględniono ryzyko wzrostu teperatury i potrzebę inializacji zafalowań. (Nowa etod sterowania układe zasilania elektroagnesu uożliwiająca otrzyanie pola agnetycznego 45 T) Keywords: high-field quasi-continuous agnets, phase-controlled rectifier, dc passive filter, repetitive control. Słowa kluczowe: pole agnetyczne, układ zasilania, elektroagnes. Introduction A wide variety of high-field agnet systes will be developed and operated at the Wuhan National High Magnetic Field Center (WHMFC) at Wuhan, China, with support fro the National Developent and Reforation Coittee. Basic scientific research such as biology, cheistry, geology, aterial science engineering, edicine and solid-state physics, can then be carried out in this extree physical environent. Research under high agnetic field conditions soeties requires the agnetic field to be as constant as possible [1, 2, 3]. To eet the low -ripple requireent, one nitrogen-cooled, 45 T / 6 s high-field quasi-continuous agnet (HFQCM) was specified to obtain the best perforance available at the required high power level to be provided by industrial power supplies. In order to energize the HFQCM, a hybrid power supply, consisting of a 12-pulse phase-controlled rectifier (PCR) in parallel with a dc passive filter (DCPF), is proposed. The pulsed power and energy for the PCR is provided by a 1 MVA / 1 MJ flywheel pulse generator (FPG), which has been installed and coissioned at the WHMFC [4]. Two three-winding step-down 6.9 kv /.66 kv transforers, connecting the FPG and the PCR, are now under construction. The dc ripple during the flat-top period is reduced by the DCPF. With this schee, the large power handling capability of the PCR and the good filtering ability of the DCPF are fully utilized in a copleentary way. A novel control ethod that ipleents the desired agnetic field wavefor for the PCR is proposed. Due to the high current flowing through the agnet, the teperature rises due to the increase of the resistance, which ay have a negative influence on the control of the agnetic field wavefor. Using the current reference profile, the agnet resistance odel is utilized to predict the required output voltage wavefor. The operating principles of the power circuit and the control schee are discussed in the paper. A design exaple is given and siulated results are provided to validate the proposed structure and control schee. Power supply configuration The design of the power supply syste for the 45 T / 6 s agnet is ainly driven by the constraints governing the agnet design and only to a lesser degree by liitations of power supply coponents and schees, and liitations given by the power source [5,6, 7]. The identical odules use a thyristorized preregulator, which is a 12- pulse PCR. Fig. 1 shows the scheatic of the proposed power supply odule. In this hybrid structure, the FPG (Part 1) has been assebled and installed already at the WHMFC. The PCR (Part 2) is now under construction, while the DCPF (Part 3) is under design. The PCR is designed to handle the bulk of the output power, as the DCPF is only used for haronic cancellation under transient conditions. FPG M Part 1 PCR 6.9kV/.66kV Part 2 i dc i pf u 1kV Doubly-fed Control G 1MW/ 1MJ Voltage Exciter Control Load Breaker T 1 T 2 6.9kV/.66kV RE 1 RE 2 L 2 L 3 R 1 L 1 C 1 C 3 R 2 C 2 DCPF Part 3 Magnet R L Fig. 1 Circuit diagra of the power supply syste. 2.1 FPG The FPG syste is coposed of an induction otor and a synchronous generator [8]. A doubly fed control syste is utilized to raise the rotating speed of the FPG to the original axiu speed 713 rp. At this speed, the axiu rotating speed of the generator, about 185 MJ are stored in the shaft train. The upper speed liit for pulse operation is 713 rp (95 Hz) and the lower liit is 495 rp (66 Hz), PRZEGLĄD ELEKTROTECHNICZNY (Electrical Review), ISSN , R. 87 NR 11/
2 allowing up to about 1 MJ to be extracted with a duration of 4 seconds every 2 inutes. In the present configuration of the FPG syste, pulses are usually started at 594 rp to liit fatigue of the rotor aterials. The exciter and the voltage control syste collaborate to stabilize the generator output voltage to be constant over the energizing period of the pulse. 2.2 PCR Two independent 6-pulse rectifiers, connected in parallel through a soothing reactor, resulting in a 12-pulse PCR, are identical and are fed fro the FPG. The power of the 12-pulse PCR is provided by two 9.66 MVA transforer stations, whose priary windings are connected to the 6.9 kv transission syste, while the secondary voltages are.66 kv. A ±1% tap changer allows slow voltage adjustents to satisfy varied needs of agnets. One of the transforers is a - unit and the other a -Y unit, producing the two 3º phase shifted three phase systes needed for the 12-pulse PCR prototype. One set of underground cables, which connects the FPG to the WHFMC laboratory, is connected to a load breaker. 2.3 DCPF The PCR will produce even-nubered ripple (1.14 khz to.79 khz ainly) of the ac syste frequency in the dc circuit. For the HFQCM, the ripple should be filtered out. One DCPF is connected at the output of the PCR. It consists of a single tuned filter branch, a capacitor branch and an R-C daping branch. At the output of the FPG, the voltage wavefor can be soothed [9, 1]. The DCPF structure in reference [1] is utilized to build the filtering syste. The DCPF paraeters are given in the Appendix. The transfer function for the DCPF of Fig. 1 can be calculated as follows, (1) Zpf 1 1 Z1 1 Z2 1 Z3 (2) Z1 R1sL1 1 sc1 Z2 R2 1 sc2 Z3 1 sc3 resistance and specific heat of the agnet. The resistance variation of the agnet is affected by three factors: the current, the resistivity and the specific heat. A resistance circuit odel of the pulsed agnet with the concept of an iterative algorith is utilized [11]: 2 i t R t dt c t MadT (3) R t R T ct ct t is the tie, (t) is the coil current of the agnet, R (t) is the agnet resistance proportional to the teperature, α is a coefficient, the initial resistance of the agnet is R, c(t) is the specific heat as function of tie, c(t) is the specific heat function of the teperature, M a is the ass of the agnet, ΔT is the increent of the teperature, the initial teperature T is 77 K. Fig. 3 shows the curves of the agnet resistance R coinciding with the agnet teperature versus tie during a pulse. R (t) changes fro 3.5 Ω to Ω as the teperature drifts fro 77 K to 155 K. All the agnet paraeters are given in the Appendix. R Fig. 3 Magnet resistance and teperature during a long pulse. 3.2 Control of PCR The ai of the control schee adopted in this paper is to aintain the HFQCM flat-top field constant and reduce the dc current ripple to an extreely sall value. This is achieved by controlling the firing angle α during the pulse period. Under continuous-current operating conditions, the PCR output voltage u dc ay be represented by (4) udc udc u dc Z pf (5) Where u dc U t d t 2 u dc Cn cosnt n nk 2 2 cos Fig. 2 Frequency response of the DCPF. According to the DCPF paraeters detailed in the Appendix, the frequency response of Z pf is shown in Fig. 2. The DCPF, which acts like a high pass filter, provides a low ipedance path to frequencies higher than 1 Hz and can substantially decrease the flat-top ripple of the agnet. Power supply control strategy 3.1 Magnet resistance When a high current flows through the agnet, the teperature increases, resulting in increasing the (6) a n U t n t d t b n U t n t d t 2 2 Cn an bn and n=k, =6, k=1, 2, cos sin 2 2 cos cos 286 PRZEGLĄD ELEKTROTECHNICZNY (Electrical Review), ISSN , R. 87 NR 11/211
3 It ay be noted that as in the case of the PCR, for which the corresponding expressions are given in equations (4) ~ (6), the ripple voltage u dc is a function of α. In Fig. 4 are shown curves of the noralized ripple aplitude dn Cn 2U2 versus α with n as a paraeter [12]. Considering both the iniization of u dc and the overlap angle liitation, it is strongly suggested to work within the recoended working area for the PCR in the converter ode. For this reason, one goal for the PCR control is to keep α as sall as possible during the flat-top of the agnetic field. However, not only the control ethod, but also the secondary voltage U 2 on the transforer and the agnet paraeters ay affect the control of α. dn Recoended working area Fig. 4 d n versus α with n as a paraeter. Conventionally, K rt is the steady-state gain of the PCR and the dead-tie delay can be considered as one-twelfth of the ac source angle. The PCR controller is a feedback controller, which provides pole-zero cancellation for the R -L plant. This is a coplex-coefficient PI controller, with cross-coupling decoupling and with the feed-forward control of the reference of the firing angle α ref. Kp is1 (12) GPI is Assuing ω s and R constant, The PI paraeters K p and τ i are selected as τ i = L / R, with K p sall, such that the controller has relatively slow response, which does not interfere with the feed-forward controller. But the current control loop ust be designed faster than the feed-forward controller to get a good perforance. A syste block diagra of the proposed agnet power supply syste, including the controller (12), the PCR odel (1) and the target odel (9), is shown in Fig. 6. ref p i ref + - GPI PI Tier + + set p GPCR u dc Gobj + - u dc R s L s idc R 1 L 1 C 1 i pf C 3 u Fig. 5 The equivalent power circuit. The equivalent power circuit of the whole syste is shown in Fig. 5, R s and L s are the resistance and the inductance of the soothing reactor, R and L represent the agnet load, and R 1, L 1, C 1, R 2, C 2, and C 3 represent the DCPF. Based on Kirchhoff s current law, the functions of the power supply are given by udc u idczs u ipfzpf (7) u iz idc i ipf (8) R 2 C 2 R L Zs = Rs sls Z R sl Substituting (8) in (7), the transfer function of the control object can be expressed as i 1 1 (9) G obj udc Zs 1 Z Zs Z Zpf Under several assuptions, the PCR can be represented as a dead-tie eleent [13]: d (1) GPCR Krte s (11) Krt.9U 2 d 1 12s Fig. 6 The PCR control loop. The control syste contains two parts: one is the firing angle open loop, the other is the current closed loop. α ref (p) is the reference of the firing angle at the pulse nuber p. α set (p) is the output firing angle of the PCR control syste. α PI, the output of the closed loop, is liited ±2 º. As a result of the control strategy, the coil current ay clib to about 4 ka during a pulse. The precise easureent of such high level is a real challenge. The device selected for the PCR control syste ight use the zero-flux-principle DCCT [14][15]. The Bode plot of the PCR closed loop is drawn in Fig. 7. Depending on the value of K p, the attenuation at the frequency 1 khz ay be better or worse. When K p =.5, it is deonstrated that there ight be a agnitude aplification at the frequency 2 Hz. Nevertheless, it is confired in the siulations that oscillations always exist when K p.1. It is suggested that K p is selected to a sall value such that the oscillation could be prevented. But the effect of changing K p ust be also thought of how uch the closed loop working on the whole syste. Magnitude (db) Phase (deg) K p=.5 K p=.5 K p =.5 K p=.5 K p= Frequency (Hz) Fig. 7 Bode plot of the PCR closed loop. Considering the stability and the iniization of the tracking error by selecting K p, a repetitive control ethod is proposed. Both α ref (p) and α set (p) are eorized at the end of each pulse. A tier is set up to ake sure that the closed loop functions only at the flat-top duration. (13) set p ref p PI PRZEGLĄD ELEKTROTECHNICZNY (Electrical Review), ISSN , R. 87 NR 11/
4 p = 1, 2, 3... When it is the first pulse, α set (1) is a copletely open loop. When it is at the pulse nuber p(p 2), let (14) ref p set p 1 This eans that α set (p) contains the tracking error inforation fro the last pulse. After several pulses, for exaple, p 6, α PI decreases to alost zero. The PCR is then controlled approxiately, in an open-loop fashion. Moreover, it responds faster to reference change and is not liited by the rap rate of the current reference. Because of the open-loop nature, it does not have the adverse effects of delay, overshoots, or oscillations existing in a feedback syste. Results A nuber of easureents at priary power conditions was ade during the current stability siulations, and the results are as follows. Fig. 8 gives the coil current wavefors which always coincide with the agnetic field curves under the feedforward control and the proposed repetitive control at pulse i(ka) i(ka) t/s nuber 1, 2 and 6. With the feed-forward control only, the flat-top of the agnetic field cannot be aintained because of the nonlinear agnet resistance. As expected, the agnetic field wavefor can be iproved by the proposed control. The coil current aounts to ka, the agnetic field reaches T closely, and the flat-top tie extends to alost 6 s. By including the DCPF, the ripple of the coil current is greatly reduced. This can be seen ore clearly fro the steady state wavefor in the inset in Fig. 8. Furtherore, the peak-to-peak ripple is highly attenuated at the 2 A level, and the ripple factor achieves about 25 pp. Fig. 9 and Fig. 1 show agnet voltages and the referential firing angles related at pulse nuber 1, 2 and 6 respectively. During the 6 th pulse, as a result of the rise of agnet resistance, the agnet voltages also rise during the flat-top period, which keeps the agnetic field nearly constant. Fig. 11 shows the DCPF current at pulse nuber 6. Fig. 12 shows how the FPG shaft speed changes at the pulse nuber 6. The PCR has to be fully operational across the entire pulse operation frequency-range of the FPG, i.e. 713 rp to 665 rp Fig. 8 Coil current wavefors and field curves in three odes of operation. (6) Field(T) (1) (2) (6) Field(T) u(v) u (1) u (2) u (6) ipf(a) ipf(a) Fig. 9 Magnet voltages at pulse nuber 1, 2 and i pf (6) Fig. 11 DCPF current at pulse nuber 6 as a function of tie. ref start =65. ref ref ref end =37.1 FPG Shaft Speed(rp) Fig. 1 Referential firing angles at pulse nuber 1, 2 and Fig. 12 FPG shaft speed at pulse nuber 6 as a function of tie. 288 PRZEGLĄD ELEKTROTECHNICZNY (Electrical Review), ISSN , R. 87 NR 11/211
5 Conclusions The repetitive control ethod for the HFQCM power supply provides a eans to reduce the ripple of the coil current and increase the operational flexibility. The operating principle, siplified control design and feasibility siulations have been presented. Steady-state siulation studies adopting the proposed control strategy show that the coil current will be kept constant during the flat-top tie by controlling the firing angle α. It is conclusively deonstrated that the eliination of the current ripple can be accoplished by installing a DCPF at the output of the PCR. Furtherore, a dc active power filter, cooperating with the DCPF at the WHMFC, is already included in the schedule. Related research results will be published in the near future. The tuned filters for the 11 th and 13 th haronics installed at the output of the FPG will be discussed later. Appendix 1) FPG paraeters: Type: Salient pole; synchronous; 3 phase alternator. Nuber of poles: 16. Initial frequency: 95 Hz. Rotating speed ω s : 713 rp ~ 495 rp. Rate of power: 1 MVA. Energy storage: 185 MJ. WR 2 (set): lbft 2. 2) PCR paraeters: 6.9 kv/.66 kv transforers. R s = 1. Ω, L s = 2.2 H. K p =.8. Sapling tie: 1 s. 3) DCPF paraeters: R 1 = 1. Ω, L 1 = 2.2 H, C 1 = 6 μf, R 2 = 4. Ω, C 2 = 1 μf, C 3 = 2 μf. 4) Magnet paraeters: L 1.56 H,.173, R 3.5 Ω, T 77.K, M a 5. kg. REFERENCES [1] H. Jin, Y. Wang and G. Joos, A Hybrid Structure Using Phase- Controlled Rectifiers and High-Frequency Converters for Magnet-Load Power Supplies, IEEE Trans. Ind. Electron., 43 (1996), No. 1, [2] Y. Wang, G. Joos and H. Jin, DC-Side Shunt-Active Power Filter for Phase-Controlled Magnet-Load Power Supplies, IEEE Trans. Power Electron., 12 (1997), No. 5, [3] H. Jin and S. B. Dewan, A Cobined Feed-Forward and Feedback Control Schee for Low-Ripple Fast-Response Switch Mode Magnet Power Supplies, IEEE Trans. Magn., 3 (1994), No. 4, [4] L. Li, H. F. Ding, T. Peng, et. al., The Pulsed High Magnetic Field Facility at HUST, Wuhan, China and Associated Magnets, IEEE Trans. Appl. Supercond., 18(28), No. 2, [5] J. B. Schillig, H. J. Boenig, M. Gordon, et. al., Operating Experience of the United States National High Magnetic Field Laboratory 6T Long Pulse Magnet, IEEE Trans. Appl. Supercond.,1 (2), No. 1, [6] J. B. Schillig, H. J. Boenig, J. D. Rogers, et. al., Design of a 4MW Power Supply for a 6T Pulsed Magnet, IEEE Trans. Magn., 3 (1994), No. 4, [7] L. J. Capbell, H. J. Boenig, D. G. Rickel, et. al., Status of the NHMFL 6 Tesla Quasi-Continuous Magnet, IEEE Trans. Magn., 32 (1996), No. 4, [8] G. Zhuang, Y. H. Ding, M. Zhang, et. al., Reconstruction of the TEXT-U Tokaak in China, Plasa Science and Technology, 11 (29), No. 4, [9] W. F. Praeg, A High-Current Low-Pass Filter for Magnet Power Supplies, IEEE Trans. Ind. Elec. and Control Instru., IECI-17 (197), No. 1, [1] K. Li, J. J. Liu, G. C. Xiao, et. al., Novel Load Ripple Voltage- Controlled Parallel DC Active Power Filters for High Perforance Magnet Power Supplies, IEEE Trans. Nucl. Sci., 53 (26), No. 3, [11] F. Herlach and N. Miura, High Magnetic Fields Science and Technology, Singapore: World Scientific Publishing, 23. [12] S. B. Dewan and A. Straughen, Power Seiconductor Circuits, New York: John Wiley & Sons, [13] R. Liang and S. B. Dewan, Modeling and Control of Magnet Power Supply Syste with Switch-Mode Ripple Regulator, IEEE Trans. Ind. Appl., 31 (1995), No. 2, [14] H. J. Boenig, F. Bogdan, G. C. Mos, et. al., Design and Preliinary Test Results of the 4 MW Power Supply at the National High Magnetic Field Laboratory, IEEE Trans. Magn., 3 (1994), No. 4, [15] H. J. Boenig, J. A. Ferner, F. Bogdan, et. al., Design and Operation of a 4-MW, Highly Stabilized Power Supply, IEEE Trans. Ind. Appl., 32 (1996), No. 5, Authors: dr. Weiwei Liu, Huazhong University of Science and Technology Luoyu str. 137, Wuhan, China, E-ail: loudi_liuvv@foxail.co. prof. Hongfa Ding, Huazhong University of Science and Technology Luoyu str. 137, Wuhan, China, E-ail: dinghongfa@sina.co.cn. prof. Xianzhong Duan, Huazhong University of Science and Technology Luoyu str. 137, Wuhan, China, E-ail: xzduan@hust.edu.cn. prof. Liang Li, Huazhong University of Science and Technology Luoyu str. 137, Wuhan, China, E-ail: liangli44@ail.hust.edu.cn. prof. Fritz Herlach, E- ail: fritz.herlach@fys.kuleuven.be. The correspondence address is: e-ail: loudi_liuvv@foxail.co PRZEGLĄD ELEKTROTECHNICZNY (Electrical Review), ISSN , R. 87 NR 11/
UNIT - II CONTROLLED RECTIFIERS (Line Commutated AC to DC converters) Line Commutated Converter
UNIT - II CONTROLLED RECTIFIERS (Line Coutated AC to DC converters) INTRODUCTION TO CONTROLLED RECTIFIERS Controlled rectifiers are line coutated ac to power converters which are used to convert a fixed
More informationA HIGH POWER FACTOR THREE-PHASE RECTIFIER BASED ON ADAPTIVE CURRENT INJECTION APPLYING BUCK CONVERTER
9th International onference on Power Electronics Motion ontrol - EPE-PEM Košice A HIGH POWER FATOR THREE-PHASE RETIFIER BASE ON AAPTIVE URRENT INJETION APPYING BUK ONVERTER Žarko Ja, Predrag Pejović EE
More informationPart 9: Basic AC Theory
Part 9: Basic AC Theory 9.1 Advantages Of AC Systes Dealing with alternating current (AC) supplies is on the whole ore coplicated than dealing with DC current, However there are certain advantages of AC
More informationAdaptive Harmonic IIR Notch Filter with Varying Notch Bandwidth and Convergence Factor
Journal of Counication and Coputer (4 484-49 doi:.765/548-779/4.6. D DAVID PUBLISHING Adaptive Haronic IIR Notch Filter with Varying Notch Bandwidth and Convergence Factor Li Tan, Jean Jiang, and Liango
More informationCompensated Single-Phase Rectifier
Copensated Single-Phase Rectifier Jānis DoniĦš Riga Technical university jdonins@gail.co Abstract- Paper describes ethods of rectified DC pulsation reduction adding a ensation node to a single phase rectifier.
More informationKeywords: Equivalent Instantaneous Inductance, Finite Element, Inrush Current.
Discriination of Inrush fro Fault Currents in Power Transforers Based on Equivalent Instantaneous Inductance Technique Coupled with Finite Eleent Method Downloaded fro ijeee.iust.ac.ir at 5:47 IRST on
More informationANALYSIS AND SIMULATION OF PULSE TRANSFORMER CONSIDERING LEAKAGE INDUCTANCE AND CAPACITANCE
ANALYSIS AND SIMULATION OF PULSE TRANSFORMER CONSIDERING LEAKAGE INDUCTANCE AND CAPACITANCE ABOLFAZL VAHEDI, HOSSEIN HEYDARI, and FARAMARZ FAGHIHI Electrical Engineering Departent, High Voltage & Magnetic
More informationTHREE-PHASE AC CHOPPER SUPPLIED FOR INDUCTION MOTOR
International Journal of Engineering Inventions e-issn: 78-7461, p-issn: 19-6491 Volue 7, Issue 8 [August 018] PP: 01-14 THREE-PHASE AC CHOPPER SUPPIED FOR INDUCTION MOTOR Mohaed Shaban Electric & Electronic
More informationA Novel Control Scheme to Reduce Storage Capacitor of Flyback PFC Converter
International Journal of Electronics and Electrical Engineering Vol. 4, No., April 6 A Novel Control Schee to Reduce Storage Capacitor of Flyback PFC Converter Boyang Chen and Lei Li College of Autoation,
More informationELEC2202 Communications Engineering Laboratory Frequency Modulation (FM)
ELEC Counications Engineering Laboratory ---- Frequency Modulation (FM) 1. Objectives On copletion of this laboratory you will be failiar with: Frequency odulators (FM), Modulation index, Bandwidth, FM
More informationExperiment 7: Frequency Modulation and Phase Locked Loops October 11, 2006
Experient 7: Frequency Modulation and Phase ocked oops October 11, 2006 Frequency Modulation Norally, we consider a voltage wave for with a fixed frequency of the for v(t) = V sin(ω c t + θ), (1) where
More informationEXPERIMENTAL VERIFICATION OF SINUSOIDAL APPROXIMATION IN ANALYSIS OF THREE-PHASE TWELVE-PULSE OUTPUT VOLTAGE TYPE RECTIFIERS
th INTERNATIONAL SYPOSIU on POWER ELECTRONICS - Ee 9 XV eđunarodni sipoziju Energetska elektronika Ee 9 NOVI SAD, REPUBLIC OF SERBIA, October 8 th - th, 9 EXPERIENTAL VERIFICATION OF SINUSOIDAL APPROXIATION
More informationA NEW APPROACH TO UNGROUNDED FAULT LOCATION IN A THREE-PHASE UNDERGROUND DISTRIBUTION SYSTEM USING COMBINED NEURAL NETWORKS & WAVELET ANALYSIS
A NEW APPROACH TO UNGROUNDED FAULT LOCATION IN A THREE-PHASE UNDERGROUND DISTRIBUTION SYSTEM USING COMBINED NEURAL NETWORKS & WAVELET ANALYSIS Jaal Moshtagh University of Bath, UK oshtagh79@yahoo.co Abstract
More informationNew Characteristics Analysis Considering Transmission Distance and Load Variation in Wireless Power Transfer via Magnetic Resonant Coupling
New Characteristics nalysis Considering Transission Distance and oad Variation in Wireless Power Transfer via Magnetic Resonant Coupling Masaki Kato, Takehiro ura, Yoichi Hori The Departent of dvanced
More informationA simple charge sensitive preamplifier for experiments with a small number of detector channels
A siple charge sensitive preaplifier for experients with a sall nuber of detector channels laudio Arnaboldi and Gianluigi Pessina Istituto Nazionale di Fisica Nucleare (INFN) Università degli Studi di
More informationSecondary-side-only Simultaneous Power and Efficiency Control in Dynamic Wireless Power Transfer System
069060 Secondary-side-only Siultaneous Power and Efficiency Control in Dynaic Wireless Power Transfer Syste 6 Giorgio ovison ) Daita Kobayashi ) Takehiro Iura ) Yoichi Hori ) ) The University of Tokyo,
More informationRobust Acceleration Control of Electrodynamic Shaker Using µ Synthesis
Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference 5 Seville, Spain, Deceber -5, 5 WeIC8. Robust Acceleration Control of Electrodynaic Shaker Using µ Synthesis
More informationImpact of the Reactive Power Compensation on Harmonic Distortion Level
pact of the Reactive Power Copensation on Haronic Distortion Level J. A. M. eto,. C. Jesus, L. L. Piesanti Departaento de Tecnologia Universidade Regional do oroeste do Estado do Rio Grande do Sul juí
More informationPOWER QUALITY ASSESSMENT USING TWO STAGE NONLINEAR ESTIMATION NUMERICAL ALGORITHM
POWER QUALITY ASSESSENT USING TWO STAGE NONLINEAR ESTIATION NUERICAL ALGORITH Vladiir Terzia ABB Gerany vadiir.terzia@de.abb.co Vladiir Stanoevic EPS Yugoslavia vla_sta@hotail.co artin axiini ABB Gerany
More informationChapter 6. POWER AMPLIFIERS
hapter 6. OWER AMFERS An aplifying syste usually has several cascaded stages. The input and interediate stages are sall signal aplifiers. Their function is only to aplify the input signal to a suitable
More informationClamping of Switch Peak Voltage with Diode and Transformer at Output of Class E Amplifier for Renewable Energy Applications
adashi Suetsugu et al., Vol.3, No., 013 Claping of Switch Peak Voltage with Diode and ransforer at Output of Class E Aplifier for enewable Energy Applications adashi Suetsugu*, Xiuqin Wei * *Departent
More informationEQUALIZED ALGORITHM FOR A TRUCK CABIN ACTIVE NOISE CONTROL SYSTEM
EQUALIZED ALGORITHM FOR A TRUCK CABIN ACTIVE NOISE CONTROL SYSTEM Guangrong Zou, Maro Antila, Antti Lanila and Jari Kataja Sart Machines, VTT Technical Research Centre of Finland P.O. Box 00, FI-0 Tapere,
More informationA Novel Three-Phase Rectifier with Reduced THD
A Novel Three-Phase Rectifier with Reduced THD Gregory vensky and Sa Ben-Yaakov Power Electronics Laboratory Departent of Electrical and Coputer Engineering Ben-Gurion University of the Negev P. O. Box
More informationBlock Diagram of FM Receiver
FM Receivers FM receivers, like AM receivers, utilize the superheterodyne principle, but they operate at uch higher frequencies (88-108 MHz). A liiter is often used to ensure the received signal is constant
More informationIsolation System with Wireless Power Transfer for Multiple Gate Driver Supplies of a Medium Voltage Inverter
Isolation Syste with Wireless Power Transfer for Multiple Gate Driver Supplies of a Mediu Voltage Inverter Keisuke Kusaka, Koji Orikawa and Jun-ichi Itoh Dept. of Energy and Environental Nagaoka University
More informationReal Time Etch-depth Measurement Using Surface Acoustic Wave Sensor
Australian Journal of Basic and Applied Sciences, (8): -7, 1 ISSN 1991-8178 Real Tie Etch-depth Measureent Using Surface Acoustic Wave Sensor 1 Reza Hosseini, Navid Rahany, 3 Behrad Soltanbeigi, Rouzbeh
More informationTESTING OF ADCS BY FREQUENCY-DOMAIN ANALYSIS IN MULTI-TONE MODE
THE PUBLISHING HOUSE PROCEEDINGS OF THE ROMANIAN ACADEMY, Series A, OF THE ROMANIAN ACADEMY Volue 5, Nuber /004, pp.000-000 TESTING OF ADCS BY FREQUENCY-DOMAIN ANALYSIS IN MULTI-TONE MODE Daniel BELEGA
More informationResearch Article Novel Design for Reduction of Transformer Size in Dynamic Voltage Restorer
Research Journal of Applied Sciences, Engineering and Technology 8(19): 057-063, 014 DOI:10.1906/rjaset.8.1198 ISSN: 040-7459; e-issn: 040-7467 014 Maxwell Scientific Publication Corp. Subitted: April
More informationOTC Statistics of High- and Low-Frequency Motions of a Moored Tanker. sensitive to lateral loading such as the SAL5 and
OTC 61 78 Statistics of High- and Low-Frequency Motions of a Moored Tanker by J.A..Pinkster, Maritie Research Inst. Netherlands Copyright 1989, Offshore Technology Conference This paper was presented at
More informationNew Adaptive Linear Combination Structure for Tracking/Estimating Phasor and Frequency of Power System
28 Journal of Electrical Engineering & echnology Vol. 5, No., pp. 28~35, 2 New Adaptive Linear Cobination Structure for racking/estiating Phasor and Frequency of Power Syste Choowong-Wattanasakpubal and
More informationAlternative Encoding Techniques for Digital Loudspeaker Arrays
Alternative Encoding Techniques for Digital Loudspeaer Arrays Fotios Kontoichos, Nicolas Alexander Tatlas, and John Mourjopoulos Audio and Acoustic Technology Group, Wire Counications Laboratory, Electrical
More informationSwitching Transients of Low Cost Two Speed Drive for Single-Phase Induction Machine
Switching Transients of Low Cost Two Speed Drive for Single-Phase Induction Machine L. Woods, A. Hoaifar, F. Fatehi M. Choat, T. Lipo CA&T State University University of Wisconsin-Madison Greensboro, C
More informationEinstein Classes, Unit No. 102, 103, Vardhman Ring Road Plaza, Vikas Puri Extn., Outer Ring Road New Delhi , Ph. : ,
AENAING CUEN PAC 7. Introduction : Q. What is direct current? Solution : Direct current does not change direction with tie. Q. What is alternating current? Solution : Alternating currents and voltages
More informationMutual Inductance. L (1) l
Mutual Inductance Developers Objectives Preparation Background JD Mitchell, AB Overby and K Meehan The objectives of this experient are to design and construct a transforer and deterine its losses as well
More informationDesign of Efficient ZVS Half-Bridge Series Resonant Inverter with Suitable Control Technique
Harish Vegola et al. Int. Journal of Engineering Research and Application RESEARCH ARTICLE OPEN ACCESS Design of Efficient ZVS Half-Bridge Series Resonant Inverter with Suitable Control Technique Harish
More informationTorsion System. Encoder #3 ( 3 ) Third encoder/disk for Model 205a only. Figure 1: ECP Torsion Experiment
Torsion Syste Introduction This lab experient studies dynaics of a torsional syste with single and ultiple degrees of freedo. The effects of various control configurations are studied in later part of
More informationSelective Harmonic Elimination for Multilevel Inverters with Unbalanced DC Inputs
Selective Haronic Eliination for Multilevel Inverters with Unbalanced DC Inputs Abstract- Selective haronics eliination for the staircase voltage wavefor generated by ultilevel inverters has been widely
More informationA Decoupling Structure of Controllable Reactor of Transformer Type
TELKOMNIKA Indonesian Journal of Electrical Engineering Vol., No., January 5, pp. ~ 5 DOI:.59/telkonika.vi.67 A Decoupling Structure of Controllable Reactor of Transforer Type Yu He*, Huatai Chen Power
More informationAn improved Active Islanding Detection Technology for Grid-connected Solar Photovoltaic System
An iproved Active Islanding Detection Technology for Grid-connected Solar Photovoltaic Syste H. T. Yang, P. C. Peng, T. Y. Tsai, and Y. Y. Hong Abstract--Solar photovoltaic (PV) generation has drawn ore
More informationTHE IMPLEMENTATION OF PERMANENT MAGNET SYNCHRONOUS MOTOR SPEED TRACKING BASED ON ONLINEARTIFICIAL NEURAL NETWORK
ISSN 1819-668 26-213 AsianResearch PublishingNetwork (ARPN).Allrights reserved. www.arpnjournals.co THE IMPLEMENTATION OF PERMANENT MAGNET SYNCHRONOUS MOTOR SPEED TRACKING BASED ON ONLINEARTIFICIAL NEURAL
More informationLUENBERGER ALGORITHM BASED HARMONICS ESTIMATOR FOR FRONT END RECTIFIER AND PWM-VSI
LUENBERGER ALGORITHM BASED HARMONICS ESTIMATOR FOR FRONT END RECTIFIER AND PWM-VSI P Ajay-D-Vial Raj R.Sundaraurthy S Jeevananthan M.Sudhakaran Departent of Electrical and Electronics Engineering, Pondicherry
More informationDesign of a Microcontroller Based Automatic Voltage Stabilizer with Toroidal Transformer
Design of a Microcontroller Based utoatic Voltage Stabilizer with Toroidal Transforer Thet Htun ung Departent of Electrical Power Engineering Mandalay Technological University Myanar bstract- Every electrical
More informationREPORT ITU-R SA Telecommunication characteristics and requirements for space VLBI systems
Rep. ITU-R SA.2132 1 REPORT ITU-R SA.2132 Telecounication characteristics and requireents for space VLBI systes (2008) This Report describes the characteristics of the space VLBI systes. These characteristics
More informationAn Automatic Control Strategy of Strip Width in Cold Rolling
Advanced Materials Research Subitted: 204-06-04 ISSN: 662-8985, Vols. 004-005, pp 22-225 Accepted: 204-06-08 doi:0.4028/www.scientific.net/amr.004-005.22 Online: 204-08-3 204 Trans Tech Publications, Switzerland
More informationLOW COST PRODUCTION PHASE NOISE MEASUREMENTS ON MICROWAVE AND MILLIMETRE WAVE FREQUENCY SOURCES
Page 1 of 10 LOW COST PRODUCTION PHASE NOISE MEASUREMENTS ON MICROWAVE AND MILLIMETRE WAVE FREQUENCY SOURCES Hugh McPherson Spectral Line Systes Ltd, Units 1,2&3 Scott Road, Tarbert, Isle of Harris. www.spectral-line-systes.co.uk
More informationModeling and Parameter Identification of a DC Motor Using Constraint Optimization Technique
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-684,p-ISSN: 2320-334X, Volue 3, Issue 6 Ver. II (Nov. - Dec. 206), PP 46-56 www.iosrjournals.org Modeling and Paraeter Identification
More informationELECTRICAL ENGINEERING [UKSSSC (JE) ELECTRICAL/ELECTRONICS]
Class Centre-Pithuwala Karanpur; HO: Shila bypass road near Governent polytechnic Pithuwala Dehradun Mob:084495973,0943406 Web: www.engineeringacadey.co.in E-ail:engineeringacadeyddn@gail.co. How uch energy
More informationA Preprocessing Method to Increase High Frequency Response of A Parametric Loudspeaker
A Preprocessing Method to Increase High Frequency Response of A Paraetric Loudspeaker Chuang Shi * and Woon-Seng Gan Digital Processing Laboratory School of Electrical and Electronic Engineering Nanyang
More informationGENERALIZED PWM TECHNIQUE FOR DUAL INVERTER FED INDUCTION MOTOR DRIVE
28 Acta Electrotechnica et Inforatica, ol. 14, No. 1, 2014, 28 36, DOI: 10.15546/aeei-2014-0005 GENERALIZED PWM TECHNIQUE FOR DUAL INERTER FED INDUCTION MOTOR DRIE M. HARSHAARDHAN REDDY *, T. BRAHMANANDA
More informationHIGH FREQUENCY LASER BASED ACOUSTIC MICROSCOPY USING A CW GENERATION SOURCE
HIGH FREQUENCY LASER BASED ACOUSTIC MICROSCOPY USING A CW GENERATION SOURCE T.W. Murray, O. Balogun, and N. Pratt Departent of Aerospace and Mechanical Engineering, Boston University, Boston MA 0225 Abstract:
More informationEnergy-Efficient Cellular Communications Powered by Smart Grid Technology
Energy-Efficient Cellular Counications Powered by Sart Grid Technology Itiaz Nasi, Mostafa Zaan Chowdhury, and Md. Syadus Sefat Departent of Electrical and Electronic Engineering Khulna University of Engineering
More informationTransmit Power and Bit Allocations for OFDM Systems in a Fading Channel
Transit Power and Bit Allocations for OFD Systes in a Fading Channel Jiho Jang *, Kwang Bok Lee, and Yong-Hwan Lee * Sasung Electronics Co. Ltd., Suwon P.O.Box, Suwon-si, Gyeonggi-do 44-74, Korea School
More informationA Novel Low Power UWB Cascode SiGe BiCMOS LNA with Current Reuse and Zero-Pole Cancellation
A Novel Low Power UWB Cascode SiGe BiCMOS LNA with Current Reuse and Zero-Pole Cancellation Chunbao Ding, Wanrong Zhang, Dongyue Jin, Hongyun Xie, Pei Shen, Liang Chen, School of Electronic Inforation
More informationA new scheme based on correlation technique for generator stator fault detection-part І
International Journal of Energy and Power Engineering 04; 3(3): 64 Published online May 30, 04 (http://www.sciencepublishinggroup.co/j/ijepe) doi: 0.648/j.ijepe.040303. A new schee based on correlation
More informationPREDICTING SOUND LEVELS BEHIND BUILDINGS - HOW MANY REFLECTIONS SHOULD I USE? Apex Acoustics Ltd, Gateshead, UK
PREDICTING SOUND LEVELS BEHIND BUILDINGS - HOW MANY REFLECTIONS SHOULD I USE? W Wei A Cooke J Havie-Clark Apex Acoustics Ltd, Gateshead, UK Apex Acoustics Ltd, Gateshead, UK Apex Acoustics Ltd, Gateshead,
More informationEFFECTS OF MASKING ANGLE AND MULTIPATH ON GALILEO PERFORMANCES IN DIFFERENT ENVIRONMENTS
1 EFFECTS OF MASKING ANGLE AND MULTIPATH ON GALILEO PERFORMANCES IN DIFFERENT ENVIRONMENTS M. Malicorne*, M. Bousquet**, V. Calettes*** SUPAERO, 1 avenue Edouard Belin BP 43, 3155 Toulouse Cedex, France.
More informationAccuBridge TOWARDS THE DEVELOPMENT OF A DC CURRENT COMPARATOR RATIO STANDARD
AccuBridge TOWARD THE DEVELOPMENT OF A DC CURRENT COMPARATOR RATO TANDARD Duane Brown,Andrew Wachowicz, Dr. hiping Huang 3 Measureents nternational, Prescott Canada duanebrown@intl.co, Measureents nternational,
More informationNINTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, ICSV9 PASSIVE CONTROL OF LAUNCH NOISE IN ROCKET PAYLOAD BAYS
first nae & faily nae: Rick Morgans Page nuber: 1 NINTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, ICSV9 PASSIVE CONTROL OF LAUNCH NOISE IN ROCKET PAYLOAD BAYS Rick Morgans, Ben Cazzolato, Anthony
More informationDSI3 Sensor to Master Current Threshold Adaptation for Pattern Recognition
International Journal of Signal Processing Systes Vol., No. Deceber 03 DSI3 Sensor to Master Current Threshold Adaptation for Pattern Recognition David Levy Infineon Austria AG, Autootive Power Train Systes,
More informationParameter Identification of Transfer Functions Using MATLAB
Paraeter Identification of Transfer Functions Using MATLAB Mato Fruk, Goran Vujisić, Toislav Špoljarić Departent of Electrical Engineering The Polytechnic of Zagreb Konavoska, Zagreb, Croatia ato.fruk@tvz.hr,
More informationALTERNATING CURRENT (A.C. CIRCUITS)
AENANG UEN (SHO) 3-4 PAGE: AENANG UEN (A.. US) Alternating current An electrical current, agnitude of which changes with tie and polarity reverses periodically is called alternating current (A.) he sinusoidal
More information] (1) Problem 1. University of California, Berkeley Fall 2010 EE142, Problem Set #9 Solutions Prof. Jan Rabaey
University of California, Berkeley Fall 00 EE4, Proble Set #9 Solutions Ain Arbabian Prof. Jan Rabaey Proble Since the ixer is a down-conversion type with low side injection f LO 700 MHz and f RF f IF
More informationAmplifiers and Feedback
6 A Textbook of Operational Transconductance Aplifier and AIC Chapter Aplifiers and Feedback. INTRODUCTION Practically all circuits using Operational Transconductance Aplifiers are based around one of
More informationA soft decision decoding of product BCH and Reed-Müller codes for error control and peak-factor reduction in OFDM
A soft decision decoding of product BCH and Reed-Müller codes for error control and pea-factor reduction in OFDM Yves LOUET *, Annic LE GLAUNEC ** and Pierre LERAY ** * PhD Student and ** Professors, Departent
More informationEvaluation of Steady-State and Dynamic Performance of a Synchronized Phasor Measurement Unit
01 IEEE Electrical Power and Energy Conference Evaluation of Steady-State and Dynaic Perforance of a Synchronized Phasor Measureent Unit Dinesh Rangana Gurusinghe, Graduate Student Meber, IEEE, Athula
More informationCross-correlation tracking for Maximum Length Sequence based acoustic localisation
Cross-correlation tracking for Maxiu Length Sequence based acoustic localisation Navinda Kottege Research School of Inforation Sciences and Engineering The Australian National University, ACT, Australia
More informationRelation between C/N Ratio and S/N Ratio
Relation between C/N Ratio and S/N Ratio In our discussion in the past few lectures, we have coputed the C/N ratio of the received signals at different points of the satellite transission syste. The C/N
More informationDynamic Wireless Power Transfer System for Electric Vehicle to Simplify Ground Facilities - Power Control Based on Vehicle-side Information -
EVS8 KNTEX Korea May 3-6 5 Dynaic Wireless Power Transfer Syste for Electric Vehicle to Siplify Ground Facilities - Power Control Based on Vehicle-side nforation - Katsuhiro Hata Takehiro ura Yoichi Hori
More informationR industrial and aerospace applications due to their numerous
IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 4. NO., JANUARY 989 83 Integral Cycle Mode Control of the Series Resonant Converter GYU B. JOUNG, CHUN T. RIM, AND GYU H. CHO Abstract-A new control ethod for
More informationOverlapped frequency-time division multiplexing
April 29, 16(2): 8 13 www.sciencedirect.co/science/journal/158885 he Journal of China Universities of Posts and elecounications www.buptjournal.cn/xben Overlapped frequency-tie division ultiplexing JIANG
More informationExploring the Electron Tunneling Behavior of Scanning Tunneling Microscope (STM) tip and n-type Semiconductor
Page 110 Exploring the of Scanning Tunneling Microscope (STM) tip and n-type Seiconductor M. A. Rahan * and J. U. Ahed Departent of Applied Physics, Electronics & Counication Engineering, University of
More informationTransactions on Industrial Electronics IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 1
Page of IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS Abstract This paper details the design considerations of a peranent agnet (PM), three phase, high speed, synchronous achine for fault tolerant operation.
More informationOptical fiber beamformer for processing two independent simultaneous RF beams
Optical fiber beaforer for processing two independent siultaneous RF beas M. Jaeger, S. Granieri *, and A. Siahakoun Departent of Physics and Optical Engineering, Rose-Hulan Institute of Technology Terre
More informationMitigation of GPS L 2 signal in the H I observation based on NLMS algorithm Zhong Danmei 1, a, Wang zhan 1, a, Cheng zhu 1, a, Huang Da 1, a
2nd International Conference on Electrical, Coputer Engineering and Electronics (ICECEE 25 Mitigation of GPS L 2 signal in the H I observation based on NLMS algorith Zhong Danei, a, Wang zhan, a, Cheng
More informationNovel Multilevel Inverter Carrier-Based PWM Method
98 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 5, NO. 5, SEPTEMBER/OCTOBER 999 Novel Multilevel Inverter Carrier-Based PWM Method Leon M. Tolbert, Senior Meber, IEEE, and Thoas G. Habetler, Senior
More informationDesign and Development Considerations of Voltage Controlled Crystal Oscillator (VCXO) Networks
Design and Developent Considerations of Voltage Controlled Crystal Oscillator (VCXO) Networks David Green & Tony Scalpi, Cypress Seiconductor Corporation 2003 1.0 Overview The concept of placing piezoelectric
More informationNotes on Orthogonal Frequency Division Multiplexing (OFDM)
Notes on Orthogonal Frequency Division Multiplexing (OFDM). Discrete Fourier ransfor As a reinder, the analytic fors of Fourier and inverse Fourier transfors are X f x t t, f dt x t exp j2 ft dt (.) where
More informationA Novel Sine Duty-Cycle Modulation Control Scheme for Photovoltaic Single-Phase Power Inverters
Leandre Nnee Nnee, Jean Mbihi A Novel Sine Duty-Cycle Modulation Control Schee for Photovoltaic Single-Phase Power Inverters ARNAUD OBONO BIYOBO Research Laboratory of Coputer Science Engineering and Autoation
More informationHÉDIO TATIZAWA 1, ERASMO SILVEIRA NETO 2, GERALDO F. BURANI 1, ANTÔNIO A. C. ARRUDA 1, KLEIBER T. SOLETTO 1, NELSON M. MATSUO 1
Application of odelling and coputer siulation for the developent of a test setup for calibration of power quality easureent transducers for high voltage networks HÉDIO TATIZAWA 1, ERASMO SILVEIRA NETO
More informationA 1.2V rail-to-rail 100MHz amplifier.
University of Michigan, EECS413 Final project. A 1.2V rail-to-rail 100MHz aplifier. 1 A 1.2V rail-to-rail 100MHz aplifier. Mark Ferriss, Junghwan Han, Joshua Jaeyoung Kang, University of Michigan. Abstract
More informationDesign and Implementation of Serial Port Ultrasonic Distance Measurement System Based on STC12 Jian Huang
International Conference on Education, Manageent and Coputer Science (ICEMC 2016) Design and Ipleentation of Serial Port Ultrasonic Distance Measureent Syste Based on STC12 Jian Huang Xijing University,
More informationa 2 R ja 2 x l2 R c jx m1
Electric Machinery Labs NQN_version.0 Lab Exercise 6: Siulation of Inrush Currents in Three-Phase Transforers Students ID Group Date I. Introduction: Transforer plays an iportant role in the power transission
More informationINTERNATIONAL TELECOMMUNICATION UNION
INTERNATIONAL TELECOMMUNICATION UNION ITU-T J.133 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2002) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA
More informationA Fuzzy Controlled PWM Current Source Inverter for Wind Energy Conversion System
7 International Journal of Smart Electrical Engineering, Vol.3, No.2, Spring 24 ISSN: 225-9246 pp.7:2 A Fuzzy Controlled PWM Current Source Inverter for Wind Energy Conversion System Mehrnaz Fardamiri,
More informationDetection of Faults in Power System Using Wavelet Transform and Independent Component Analysis
Detection of Faults in Power Syste Using Wavelet Transfor and Independent Coponent Analysis 1 Prakash K. Ray, 2 B. K. Panigrahi, 2 P. K. Rout 1 Dept. of Electrical and Electronics Engineering, IIIT, Bhubaneswar,
More informationA Review on Modern Pulse Width Modulation Techniques Based Inverters
A Review on Modern Pulse Width Modulation Techniques Based Inverters Manish Sahajwani 1, Susha Patel 2 HOD, Dept. of EX, IES IPS Acadey Indore (M.P.) India 1 M.E. Scholar (Power Electronics), Dept. of
More informationDesign of Pretension Tubular Rope Machine Control System Based on RBFNN Tuning PID
06 International Conference on Coputer, Mechatronics and Electronic Engineering (CMEE 06) ISBN: 978--60595-406-6 Design of Pretension ubular Rope Machine Control Syste Based on RBFNN uning PID Hui LI and
More informationDesign Consideration of Half-Bridge LLC Resonant Converter
Design Consideration of Halfbridge LLC Resonant Converter 13 JPE 71 Design Consideration of HalfBridge LLC Resonant Converter HangSeok Choi airchild Korea Seiconductor, Korea ABSTRACT LLC resonant converters
More informationLaboratory Manual for DC Servo System Control Platform
Laboratory Manual for DC Servo Syste Control Platfor GSMT Series V1.01 2012.06 www.googoltech.co.cn 2012 Googol Technology. All rights reserved Copyrights Stateent All rights are reserved by The shall
More informationANALOGUE & DIGITAL COMMUNICATION
1 ANALOGUE & DIGITAL COMMUNICATION Syed M. Zafi S. Shah & Uair Mujtaba Qureshi Lectures 5-6: Aplitude Modulation Part 1 Todays topics Recap of Advantages of Modulation Analog Modulation Defining Generation
More informationCharacteristics of a Stand-Alone Induction Generator in Small Hydroelectric Plants
Characteristics of a Stand-Alone nduction Generator in Sall Hydroelectric Plants M. H. Haque School of Electrical and Electronic Engineering Nanyang Technological University Singapore 69798 Abstract-This
More informationModeling Beam forming in Circular Antenna Array with Directional Emitters
International Journal of Research in Engineering and Science (IJRES) ISSN (Online): 2320-9364, ISSN (Print): 2320-9356 Volue 5 Issue 3 ǁ Mar. 2017 ǁ PP.01-05 Modeling Bea foring in Circular Antenna Array
More informationParallel Balancing Converter for Serially Connected Batteries String
Parallel Balancing Converter for Serially Connected Batteries String Or Kirshenboi, Student Meber, IEEE, Yoav Dickstein, Alex Shvarchov, Mor Mordechai Peretz, Meber, IEEE The Center for Power Electronics
More informationMismatch error correction for time interleaved analog-to-digital converter over a wide frequency range
Misatch error correction for tie interleaved analog-to-digital converter over a wide frequency range Zouyi Jiang,,2 Lei Zhao,,2,a) Xingshun Gao,2, Ruoshi Dong,2, Jinxin Liu,2, and Qi An,2 State Key Laboratory
More informationR&S IMS Hardware Setup according IEC / EN (radiated immunity) Products: R&S IMS, R&S NRP-Z91, HL046E. Application Note
Products: R&S, R&S NRP-Z91, HL046E R&S Hardware Setup according IEC / EN 61000-4-3 (radiated iunity) Application Note This application note describes the general setup and required equipent for EMC easureents
More informationROBUST UNDERWATER LOCALISATION OF ULTRA LOW FREQUENCY SOURCES IN OPERATIONAL CONTEXT
ROBUST UNDERWATER LOCALISATION OF ULTRA LOW FREQUENCY SOURCES IN OPERATIONAL CONTEXT M. Lopatka a, B. Nicolas a, G. Le Touzé a,b, X. Cristol c, B. Chalindar c, J. Mars a, D. Fattaccioli d a GIPSA-Lab /DIS/
More informationLab 5: Differential Amplifier.
epartent of Electrical and oputer Engineering Fall 1 Lab 5: ifferential plifier. 1. OBJETIVES Explore the operation of differential FET aplifier with resistive and active loads: Measure the coon and differential
More informationIgnition and monitoring technique for plasma processing of multicell superconducting radio frequency cavities
Ignition and onitoring technique for plasa processing of ulticell superconducting radio frequency cavities Marc Doleans Oak Ridge ational Laboratory, Oak Ridge, Tennessee 3783, USA E ail: doleans@ornl.gov
More informationKalman Filtering for NLOS Mitigation and Target Tracking in Indoor Wireless Environment
16 Kalan Filtering for NLOS Mitigation and Target Tracking in Indoor Wireless Environent Chin-Der Wann National Sun Yat-Sen University Taiwan 1. Introduction Kalan filter and its nonlinear extension, extended
More informationDesign and Implementation of Piezoelectric Transducer Driving System with MPPT and ZVS Features
Volue 02 Issue 05, October 2014 Design and Ipleentation of Piezoelectric Transducer Driving Syste with MPPT and ZVS Features Yu-Kai Chen, Chau-Chung Song and Chih-Ying Chen Departent of Aeronautical Engineering,
More information