THE integrated circuit (IC) industry, both domestic and foreign,

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "THE integrated circuit (IC) industry, both domestic and foreign,"

Transcription

1 IEEE TRANSACTIONS ON MAGNETICS, VOL. 41, NO. 3, MARCH Application of Voice Coil Motors in Active Dynamic Vibration Absorbers Yi-De Chen, Chyun-Chau Fuh, and Pi-Cheng Tung Abstract A dynamic vibration absorber reduces the influence of a force whose excitation frequency nearly coincides with the natural frequency of a rotating machine. However, the performance of this type of passive absorber can be affected by changes in the environment. In this paper, we describe a voice coil motor (VCM) that can serve as the actuator in an active dynamic vibration absorber which can be regulated for different conditions. With a VCM, suitable controllers can be designed for periodic excitation force rejection by using the characteristics of the notch filter in combination with the root-locus theorem. We have evaluated the performance of the active vibration absorber by both simulations and experiments. Index Terms Active vibration absorber, notch filter, root-locus theorem, voice coil motors. I. INTRODUCTION THE integrated circuit (IC) industry, both domestic and foreign, has had a higher growth rate than others. Since the IC industry requires highly developed technology and high-precision manufacturing, its corresponding production machinery and measuring devices are very sensitive to vibrational noise. A small amount of vibration may introduce undesirable noise and act as a source of vibration in the mechanical system, which affects the accuracy and may shorten the lifetime of the machine. Thus vibration control, that is attenuation of undesirable vibration from various sources, has become an important research topic. The most common method for the control of vibration has been to use vibration isolators or vibration absorbers to reduce or eliminate vibrations. The former method uses an isolator between the vibrated mass and the source of the vibration, to reduce the transmission of the excitation forces. In general, vibration isolators [1] can be divided into two types: passive and active. The main difference between them is that the active type provides power for the performance of vibration control. The dynamic vibration absorber [2] is designed to reduce the influence of a force whose excitation frequency is nearly coincidental with the natural frequency of the system. An ideal undamped dynamic vibration absorber [3] consists of an auxiliary mass and a stiff spring, tuned to the excitation frequency necessary to cause the steady amplitude of the system to be near zero at that frequency. However, if the system operates at other frequencies, Manuscript received June 22, 2004; revised November 30, Y.-D. Chen and P.-C. Tung are with the Department of Mechanical Engineering, National Central University, Taoyuan 32054, Taiwan, R.O.C. ( C.-C. Fuh is with the Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan, R.O.C. ( Digital Object Identifier /TMAG or if the excitation force has several varying frequencies, the amplitude of the vibration of a dynamically vibration absorber system may become large. On the other hand, an active dynamic vibration absorber [4], [5] can be tuned according to the system characteristics, to meet the desired requirements. Hence, active vibration control can be used to solve vibration problems, in spite of its higher cost and complexity. The actuators of active dynamic absorbers can be separated into several types: mechanical mechanisms, piezoelectric actuators [6], pneumatic springs [7], cylinders [8], electromagnetic motors [9], and electrical linear motors (linear actuators [10], [11]). The last two have some advantages, such as a faster response time and greater precision, so there has been more research into the correlative technology. It is more complex to control because magnetic forces belong to an unstable nonlinear system, and electromagnetic motors need the addition of a gear transmission to convert the rotational motion into translational motion. In contrast, the employment of a linear motor can avoid these drawbacks, as well as having the desirable features of low noise and low vibration. Their simple structure and direct drive make them easy to maintain, and they provide the ability of acceleration and deceleration. The voice coil motor (VCM) [12] is one type of linear motor, originally used in amplifiers. VCM actuators are usually used in occasions that rapid and controlled motions of devices are required. In general, VCM has many applications, such as in the servo control of the DVD [13], the hard disc [14], and the camera lens. Thus, in our experiments, the VCM is chosen to be the absorber actuator as it performs well in terms of vibration rejection. Periodic disturbances occur in many engineering control applications, commonly in rotating machinery. Several methods are available for the rejection of sinusoidal disturbances. One common method, based on the internal model principle (IMP) [15], states that a model of the system generating the disturbance must be included in the feedback system. Such an approach is based on notch filtering [16], [17], which adds a notch filter at the synchronous frequency into the loop. Another method is adaptive feedforward cancellation (AFC) [18], which can be used to estimate the magnitudes of unknown sinusoidal disturbances. In this paper, the method proposed for the design of a suitable controller by which a periodic excitation force can be rejected is based on the characteristics of the notch filter. The method uses a simple root-locus theorem to design controllers which correspond to the different frequencies of the excitation forces. The advantage of this method is that the addition of a notch controller only influences the designed frequency response /$ IEEE

2 1150 IEEE TRANSACTIONS ON MAGNETICS, VOL. 41, NO. 3, MARCH 2005 Fig. 1. Schematic of the VCM structure. Fig. 3. Experimental platform. TABLE I SPECIFICATIONS OF THE PLATFORM WITH AN ACTIVE ABSORBER Fig. 2. Chart of the distribution of the magnetic lines of force. II. SYSTEM DESCRIPTION AND THE MATHEMATICAL MODEL A. Voice Coil Motor The VCM is a direct drive motor that utilizes a permanent magnetic field and coil winding to produce a force proportional to the current applied to the coil. Its simple structure makes it easy to maintain. It can provide superior acceleration and deceleration via the magnetic force. The VCM structure used in the experiments is shown in Fig. 1 and a chart of the distribution of the magnetic lines of force is shown in Fig. 2. The magnetic field is produced by permanent magnets placed on the both sides of a permeable material such as silicon steel or low-carbon steel. The Lorentz force equation can be used to compute the thrust on the coil when it is electrified in the magnetic field. The thrust decides the direction of the coil s movement where represents the thrust on the coil, is the ratio of the effective length to the whole length of the coil in the magnetic field, is the current of the coil, and is the magnetic flux density. When and are vertical to each other, the direction of can be decided by Fleming s left-hand rule. Under this condition, (1) can be rewritten as (1) (2) where is called the force constant. Thus, the thrust on the coil can be controlled by regulating the input current. The current can be regulated by the control signal, expressed as a voltage command, so the relation between control force and control signal can be shown as where is a constant between voltage and current, and is a constant. B. System Description To reject vibration induced by an excitation force, an active dynamic absorber is added to the platform. The VCM is used as an actuator for the dynamic absorber. The experimental platform, with the active dynamic absorber, is illustrated in Fig. 3 and the specifications of the platform are given in Table I. The coil remains vertical by using a linear guideway. To analyze the system dynamics more easily, the model, including the active dynamic absorber, is simplified shown in Fig. 4. The assumption here is that the force generated by the actuator will be substituted for the excitation force. The mass, the stiffness, and the damping coefficient composing the upper components, together form the active dynamic vibration absorber of the model. The active dynamic vibration absorber can provide a controlling force, which controls the vibration. Before adding this active vibration absorber into a system, the original lower components must be modeled, that is the mass, the stiffness (3)

3 CHEN et al.: APPLICATION OF VOICE COIL MOTORS IN ACTIVE DYNAMIC VIBRATION ABSORBERS 1151 Fig. 4. Schematic of the platform with an active dynamic absorber. Fig. 5. (a) Block diagram of the LTI plant perturbed by a periodic excitation force. (b) Block diagram of the feedback control using the notch controller to reject the periodic excitation force., and the damping coefficient of the original plant. The plant is affected by an excitation force. C. Mathematical Model By employing a free-body diagram and Newton s second law of motion, the governing equations can be deduced. The original 2-degree system, composed of the lower components, can be simplified into where the states represent the position and the velocity responses of the original platform. When an active vibration absorber is added to the system, the dynamic equation can be rewritten as where and the two states represent the position and the velocity responses of the active dynamic vibration absorber, respectively. The signals and represent the excitation force and the control force, respectively; see Fig. 4. The relation between the position output, the control force, and the excitation force can be expressed via the transfer function as Thus, represents the characteristic equation of the plant (4) (5) (6) (7) Fig. 5(a) shows the organization of a linear-time-invariant system perturbed by a periodic excitation force, represented by where and and are the Fourier coefficients of the synchronous excitation force at the frequency. III. PERIODIC EXCITATION FORCE REJECTION METHOD In order to counter the effects of an excitation force with a suitable control force, the notch controller is adopted. The notch controller discussed in this paper applies a notch filter combined with the root-locus theorem. In general, a notch filter [19] is used to reduce any system response to some assigned frequency. For instance, it is often applied for the suppression at high-frequency disturbances in communications technologies. From the frequency-domain standpoint, the notch filter does not affect properties of the other frequencies of the system, only the assigned frequency. The notch filter transfer function is a function of both the Laplace variable and the excitation force frequency. The standard form is where the two coefficients are defined as and. The parameter is the damping ratio of the notch filter. For the situation, is a common notch filter which reduces the response of the system and can be aimed at a specific frequency. The attenuation provided by the magnitude of is (8) (9) (10) On the other hand, the notch filter will amplify the system s response for the situation. Thus, it can be seen that the variable decides the gain ratio and the direction of the notch in the magnitude plot. With different directions, the notch

4 1152 IEEE TRANSACTIONS ON MAGNETICS, VOL. 41, NO. 3, MARCH 2005 filter can amplify or reduce the system response. The other variable can determine the notch width for the designed frequency. Under experimental conditions, a notch controller cannot be added between the excitation force and the plant, that is to say the influence from outside on the platform cannot be directly reduced by the common notch filter. Thus, a novel method, different from the common notch filter, is presented. The opposite notch filter application, namely, the situation, is chosen. The controlling force is designed as the amplified system response, as shown in Fig. 5(b). We let the control force cancel the excitation force to decrease the effect from outside to the system. Unfortunately, the step whereby the notch filter is added into the system alters the closed-loop system s stability. The transfer function for this closed-loop system, including the notch filter, can be described as follows: Fig. 6. Frequency response diagram of the experimental system. signal, and represents the amplitude of the output signal. As seen from (3) and (6), the transfer function can be written as (11) Apparently, becomes small when is large. This means that can be employed to reduce the influence from the excitation force on the system. However, the system s stability, as affected by, should be taken care of simultaneously. To avoid instability, the root-locus theorem is employed to design the most appropriate notch controller. The characteristic equation for determining variables and can be separately expressed as (13) where and are the natural frequencies of the system. The frequencies and are obviously defined in Fig. 6. By adjusting parameter, we can change the gain. Similarly, by adjusting parameters and, we can change the damping ratio. A curve, fitting, approximating the real system responses, can be calculated by regulating the parameters, and. Via the parameter estimation method, the transfer function can be expressed as (12) By using the root-locus theorem, suitable values for the notch filter parameters and can be obtained to allow good performance and to maintain the stability of the system. Since the parameters and are coupled, one of them must be given before the root locus can be applied. The parameter that can be regulated to avoid some problems such as modeling errors, uncertainties, and disturbances is given in advance. Then the criterion for choosing the parameter is based on finding the optimal dominant root under different frequencies. The optimal dominant root let the system response be fastest. IV. SIMULATION AND EXPERIMENTAL RESULTS Although the system model type is known from (5), the parameters of the dynamic equation are unknown. Before the design at the controller can be completed, the characteristics of the system must be known. Since the system is a minimum phase system, only the magnitude response is considered. Thus, with suitable sine waves having different frequencies as the input, the frequency response diagram can be obtained by measuring the output, namely, the displacement of the platform, as shown in Fig. 6. The symbol represents the amplitude of the input (14) This model, based on the system identification results, is adopted for the simulation and the experiments. In the proposed method, parameters and should be decided on first. The parameter,,influences the magnitude of the system response and the direction of the notch filter. Parameter determines the notch width aimed the design frequency, that is to say, the regulation at parameter allows one to avoid some problems such as modeling errors, uncertainties, and disturbances. According to the parameter, the error range of the corresponding design frequency value can be decided. In the simulation and the experiments, is set as The addition of a notch filter to the plant changes the system s stability; therefore, the root-locus method should be employed to design an appropriate notch filter. The criterion for choosing the parameter is based on finding the optimal dominant root under different frequencies. When the excitation frequency is 25 rad/s, the root-locus plot is shown as Fig. 7. For faster system responses, the optimal dominate root is obtained when the parameter is set to be Then the addition of a suitable notch filter to this plant leads to the system responses shown as Fig. 8. To maintain

5 CHEN et al.: APPLICATION OF VOICE COIL MOTORS IN ACTIVE DYNAMIC VIBRATION ABSORBERS 1153 TABLE II EXPERIMENTAL PARAMETERS FOR THE DESIGN NOTCH CONTROLLER WITH DIFFERENT FREQUENCIES OF EXTERNAL FORCE Fig. 7. Root-locus plot in function of K at! =25(rad/s). Fig. 9. Resolution chart of the eddy-current sensor. Fig. 8. Frequency response diagram of the system and the system with a notch filter aimed at! =25(rad/s). system stability under different frequencies, different values for parameters are calculated, and are shown in Table II. In the simulation and the experiments, for generating a periodic excitation force, the force is set as and the sampling time is s. A control force is added to eliminate the periodic excitation force 3 s after starting the system. In the experiments, the displacement of the middle platform is detected by eddy-current gap sensors (IAS-10-A24-IL). The curve showing the relation between the position and the voltage can be seen in the resolution chart in Fig. 9. By fitting to the curve, we obtain the following expression for the position as a function of the voltage : (15) The initial reference mark set as 2.7 V, that is to say, the distance between the initial location of the middle platform and the eddycurrent gap sensor is 7.62 mm. When an excitation force with a frequency of 15 rad/s affects the system, the resultant simulation and experimental results are illustrated in Figs. 10 and 11. Fig. 10 presents the simulation results for a system with a notch controller influenced by an excitation force. Fig. 11 shows the experimental results Fig. 10. Simulation results for a notch controller system for the rejection of an excitation response when! =15(rad/s). contrasted with Fig. 10. On the premise that the uncertainty is ignored in the experimental process, the simulation result and experimental result are similar and reasonable. The parameters of the notch controller according to the different frequencies are calculated in advance and shown in Table II. By the relation between the position and the voltage in (15), the experimental frequency responses for the uncontrolled system and a notch controller system at different frequencies are shown in Fig. 12. The results show that a notch controller can help to alleviate periodic

6 1154 IEEE TRANSACTIONS ON MAGNETICS, VOL. 41, NO. 3, MARCH 2005 at the parameter. Simultaneously, the tolerant error range of the corresponding frequency can be adjusted by the other parameter. From the design viewpoint, the notch controller has the advantage of being directly perceivable through the senses; however, the employment of the VCM as an actuator can accomplish an effective dynamic vibration absorber. Fig. 11. Experimental results for a notch controller system for the rejection of an excitation response when! =15(rad/s). Fig. 12. Experimental results of the frequency responses for an uncontrolled system and a notch controller system, at different frequencies. excitation force problems and to maintain the system s stability by using the root-locus theorem. V. CONCLUSION In this paper, a VCM is chosen to be the actuator in an active dynamic absorber for the achievement at vibration control. A notch controller provides the control force, which cancels the excitation force, thus decreasing the outside effects on the system. According to the simulation and the experimental results, vibrations can be effectively reduced by using this active dynamic absorber. The use of the notch controller can lead to a quick reduction of the influence of an excitation force. The notch controller achieves a better performance by the regulation REFERENCES [1] S. S. Rao, Mechanical Vibrations, 4th ed. Upper Saddle River, NJ: Pearson, 2004, pp [2] B. G. Korenev and L. M. Reznikov, Dynamic Vibration Absorbers Theory and Technical Applications. New York: Wiley, 1993, pp [3] B. A. Francis and W. M. Wonham, The role of transmission zeros in linear multivariable regulators, Int. J. Control, vol. 22, no. 5, pp , [4] S.-J. Huang and R.-J. Lian, A dynamic absorber with active vibration control, J. Sound Vib., vol. 178, no. 3, pp , Dec [5] T. Mizuno, M. Moriya, and K. Araki, Robust disturbance cancellation in an active dynamic vibration absorber system, Control Eng. Practice, vol. 3, no. 6, pp , Jun [6] J. X. Gao and L. Cheng, Modeling of a high performance piezoelectric actuator assembly for active and passive vibration control, Smart Mater. Struct., vol. 13, no. 2, pp , Apr [7] G. L. Giliomee and P. S. Els, Semi-active hydropneumatic spring and damper system, J. Terramechanics, vol. 35, no. 2, pp , Apr [8] X. Pan and C. H. Hansen, Active control of vibration transmission in a cylindrical shell, J. Sound Vib., vol. 203, no. 3, pp , Jun [9] D.-H. Cho and H.-J. Kim, Modeling of electromagnetic excitation forces of small induction motor for vibration and noise analysis, in IEE Proc.: Elect. Power Appl., vol. 145, May 1998, pp [10] H.-P. Kelly, Linear drives, Industrial Robot, vol. 20, no. 6, pp. 8 11, [11] A. M. Madni, J. B. Vuong, M. Lopez, and R. F. Wells, A smart linear actuator for fuel management system, BEI Technol., vol. 16, pp , [12] A. Babinski and T. C. Tsao, Acceleration feedback design for voice coil actuated direct drive, in Amer. Control Conf., vol. 5, 1999, pp [13] C.-L. Chu, K.-C. Fan, and Y.-J. Chen, A compensation method for the hysteresis error of DVD VCM, Meas. Sci. Technol., vol. 15, no. 4, pp , Apr [14] R. Oboe, F. Marcassa, P. Capretta, and F. C. Soldavini, Realization of a hard disk drive head servo-positioning system with a voltage-driven voice-coil motor, Microsyst. Technol., vol. 9, no. 4, pp , Mar [15] G. Feng and M. Palaniswamy, A stable adaptive implementation of the internal model principle, IEEE Trans. Autom. Control, vol. 37, no. 8, pp , Aug [16] C. R. Knospe, Stability and performance of notch filter controllers for unbalance response, in Proc. Int. Symp. Magn. Suspension Technol.. Hampton, VA, 1991, NASA Conf. Pub [17] R. Herzog, P. Buhler, C. Gahler, and R. Larsonneur, Unbalance compensation using generalized notch filters in the multivariable feedback of magnetic bearings, IEEE Trans. Contr. Syst. Technol., vol. 4, no. 5, pp , Sep [18] H. S. Na and Y. Park, An adaptive feedforward controller for rejection of periodic disturbances, J. Sound Vib., vol. 201, no. 4, pp , [19] G. M. L. Gladwell, Vibration control of active structures, Sol. Mech. Appl., vol. 50, pp , 1997.

ACTIVE VIBRATION CONTROL OF HARD-DISK DRIVES USING PZT ACTUATED SUSPENSION SYSTEMS. Meng-Shiun Tsai, Wei-Hsiung Yuan and Jia-Ming Chang

ACTIVE VIBRATION CONTROL OF HARD-DISK DRIVES USING PZT ACTUATED SUSPENSION SYSTEMS. Meng-Shiun Tsai, Wei-Hsiung Yuan and Jia-Ming Chang ICSV14 Cairns Australia 9-12 July, 27 ACTIVE VIBRATION CONTROL OF HARD-DISK DRIVES USING PZT ACTUATED SUSPENSION SYSTEMS Abstract Meng-Shiun Tsai, Wei-Hsiung Yuan and Jia-Ming Chang Department of Mechanical

More information

1045. Vibration of flexible rotor systems with twodegree-of-freedom

1045. Vibration of flexible rotor systems with twodegree-of-freedom 1045. Vibration of flexible rotor systems with twodegree-of-freedom PID controller of active magnetic bearings Z. X. Zhong, C. S. Zhu Z. X. Zhong 1, C. S. Zhu 2 College of Electrical Engineering, Zhejiang

More information

MAGNETIC LEVITATION SUSPENSION CONTROL SYSTEM FOR REACTION WHEEL

MAGNETIC LEVITATION SUSPENSION CONTROL SYSTEM FOR REACTION WHEEL IMPACT: International Journal of Research in Engineering & Technology (IMPACT: IJRET) ISSN 2321-8843 Vol. 1, Issue 4, Sep 2013, 1-6 Impact Journals MAGNETIC LEVITATION SUSPENSION CONTROL SYSTEM FOR REACTION

More information

Active Vibration Isolation of an Unbalanced Machine Tool Spindle

Active Vibration Isolation of an Unbalanced Machine Tool Spindle Active Vibration Isolation of an Unbalanced Machine Tool Spindle David. J. Hopkins, Paul Geraghty Lawrence Livermore National Laboratory 7000 East Ave, MS/L-792, Livermore, CA. 94550 Abstract Proper configurations

More information

Conventional geophone topologies and their intrinsic physical limitations, determined

Conventional geophone topologies and their intrinsic physical limitations, determined Magnetic innovation in velocity sensing Low -frequency with passive Conventional geophone topologies and their intrinsic physical limitations, determined by the mechanical construction, limit their velocity

More information

Automatic Control Systems 2017 Spring Semester

Automatic Control Systems 2017 Spring Semester Automatic Control Systems 2017 Spring Semester Assignment Set 1 Dr. Kalyana C. Veluvolu Deadline: 11-APR - 16:00 hours @ IT1-815 1) Find the transfer function / for the following system using block diagram

More information

Preliminary study of the vibration displacement measurement by using strain gauge

Preliminary study of the vibration displacement measurement by using strain gauge Songklanakarin J. Sci. Technol. 32 (5), 453-459, Sep. - Oct. 2010 Original Article Preliminary study of the vibration displacement measurement by using strain gauge Siripong Eamchaimongkol* Department

More information

Selfsensing Unbalance Rejection and Reduction of the Gyroscopic Effect for an Active Magnetic Bearing System

Selfsensing Unbalance Rejection and Reduction of the Gyroscopic Effect for an Active Magnetic Bearing System Selfsensing Unbalance Rejection and Reduction of the Gyroscopic Effect for an Active Magnetic Bearing System Markus Hutterer, Matthias Hofer and Manfred Schrödl Vienna University of Technology Institute

More information

Study on Repetitive PID Control of Linear Motor in Wafer Stage of Lithography

Study on Repetitive PID Control of Linear Motor in Wafer Stage of Lithography Available online at www.sciencedirect.com Procedia Engineering 9 (01) 3863 3867 01 International Workshop on Information and Electronics Engineering (IWIEE) Study on Repetitive PID Control of Linear Motor

More information

CHAPTER 6. CALCULATION OF TUNING PARAMETERS FOR VIBRATION CONTROL USING LabVIEW

CHAPTER 6. CALCULATION OF TUNING PARAMETERS FOR VIBRATION CONTROL USING LabVIEW 130 CHAPTER 6 CALCULATION OF TUNING PARAMETERS FOR VIBRATION CONTROL USING LabVIEW 6.1 INTRODUCTION Vibration control of rotating machinery is tougher and a challenging challengerical technical problem.

More information

Energy efficient active vibration control strategies using electromagnetic linear actuators

Energy efficient active vibration control strategies using electromagnetic linear actuators Journal of Physics: Conference Series PAPER OPEN ACCESS Energy efficient active vibration control strategies using electromagnetic linear actuators To cite this article: Angel Torres-Perez et al 2018 J.

More information

Latest Control Technology in Inverters and Servo Systems

Latest Control Technology in Inverters and Servo Systems Latest Control Technology in Inverters and Servo Systems Takao Yanase Hidetoshi Umida Takashi Aihara. Introduction Inverters and servo systems have achieved small size and high performance through the

More information

INSIDE hard disk drives (HDDs), the eccentricity of the

INSIDE hard disk drives (HDDs), the eccentricity of the IEEE TRANSACTIONS ON MAGNETICS, VOL. 44, NO. 12, DECEMBER 2008 4769 Midfrequency Runout Compensation in Hard Disk Drives Via a Time-Varying Group Filtering Scheme Chin Kwan Thum 1;2, Chunling Du 1, Ben

More information

EC6405 - CONTROL SYSTEM ENGINEERING Questions and Answers Unit - II Time Response Analysis Two marks 1. What is transient response? The transient response is the response of the system when the system

More information

Control Design for Servomechanisms July 2005, Glasgow Detailed Training Course Agenda

Control Design for Servomechanisms July 2005, Glasgow Detailed Training Course Agenda Control Design for Servomechanisms 12 14 July 2005, Glasgow Detailed Training Course Agenda DAY 1 INTRODUCTION TO SYSTEMS AND MODELLING 9.00 Introduction The Need For Control - What Is Control? - Feedback

More information

Active sway control of a gantry crane using hybrid input shaping and PID control schemes

Active sway control of a gantry crane using hybrid input shaping and PID control schemes Home Search Collections Journals About Contact us My IOPscience Active sway control of a gantry crane using hybrid input shaping and PID control schemes This content has been downloaded from IOPscience.

More information

Unbalance Detection in Flexible Rotor Using Bridge Configured Winding Based Induction Motor

Unbalance Detection in Flexible Rotor Using Bridge Configured Winding Based Induction Motor Unbalance Detection in Flexible Rotor Using Bridge Configured Winding Based Induction Motor Natesan Sivaramakrishnan, Kumar Gaurav, Kalita Karuna, Rahman Mafidur Department of Mechanical Engineering, Indian

More information

3.1.Introduction. Synchronous Machines

3.1.Introduction. Synchronous Machines 3.1.Introduction Synchronous Machines A synchronous machine is an ac rotating machine whose speed under steady state condition is proportional to the frequency of the current in its armature. The magnetic

More information

INTELLIGENT ACTIVE FORCE CONTROL APPLIED TO PRECISE MACHINE UMP, Pekan, Pahang, Malaysia Shah Alam, Selangor, Malaysia ABSTRACT

INTELLIGENT ACTIVE FORCE CONTROL APPLIED TO PRECISE MACHINE UMP, Pekan, Pahang, Malaysia Shah Alam, Selangor, Malaysia ABSTRACT National Conference in Mechanical Engineering Research and Postgraduate Studies (2 nd NCMER 2010) 3-4 December 2010, Faculty of Mechanical Engineering, UMP Pekan, Kuantan, Pahang, Malaysia; pp. 540-549

More information

Minimum Copper Loss Flux-Weakening Control of Surface Mounted Permanent Magnet Synchronous Motors

Minimum Copper Loss Flux-Weakening Control of Surface Mounted Permanent Magnet Synchronous Motors IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 18, NO. 4, JULY 2003 929 Minimum Copper Loss Flux-Weakening Control of Surface Mounted Permanent Magnet Synchronous Motors Jiunn-Jiang Chen and Kan-Ping Chin,

More information

ADUAL-STAGE actuator (DSA) servo system is characterized

ADUAL-STAGE actuator (DSA) servo system is characterized IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 16, NO. 4, JULY 2008 717 Nonlinear Feedback Control of a Dual-Stage Actuator System for Reduced Settling Time Jinchuan Zheng and Minyue Fu, Fellow,

More information

System Inputs, Physical Modeling, and Time & Frequency Domains

System Inputs, Physical Modeling, and Time & Frequency Domains System Inputs, Physical Modeling, and Time & Frequency Domains There are three topics that require more discussion at this point of our study. They are: Classification of System Inputs, Physical Modeling,

More information

A Model Based Digital PI Current Loop Control Design for AMB Actuator Coils Lei Zhu 1, a and Larry Hawkins 2, b

A Model Based Digital PI Current Loop Control Design for AMB Actuator Coils Lei Zhu 1, a and Larry Hawkins 2, b A Model Based Digital PI Current Loop Control Design for AMB Actuator Coils Lei Zhu 1, a and Larry Hawkins 2, b 1, 2 Calnetix, Inc 23695 Via Del Rio Yorba Linda, CA 92782, USA a lzhu@calnetix.com, b lhawkins@calnetix.com

More information

BSNL TTA Question Paper Control Systems Specialization 2007

BSNL TTA Question Paper Control Systems Specialization 2007 BSNL TTA Question Paper Control Systems Specialization 2007 1. An open loop control system has its (a) control action independent of the output or desired quantity (b) controlling action, depending upon

More information

Disturbance Rejection Using Self-Tuning ARMARKOV Adaptive Control with Simultaneous Identification

Disturbance Rejection Using Self-Tuning ARMARKOV Adaptive Control with Simultaneous Identification IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 9, NO. 1, JANUARY 2001 101 Disturbance Rejection Using Self-Tuning ARMARKOV Adaptive Control with Simultaneous Identification Harshad S. Sane, Ravinder

More information

DC SERVO MOTOR CONTROL SYSTEM

DC SERVO MOTOR CONTROL SYSTEM DC SERVO MOTOR CONTROL SYSTEM MODEL NO:(PEC - 00CE) User Manual Version 2.0 Technical Clarification /Suggestion : / Technical Support Division, Vi Microsystems Pvt. Ltd., Plot No :75,Electronics Estate,

More information

Integration Intelligent Estimators to Disturbance Observer to Enhance Robustness of Active Magnetic Bearing Controller

Integration Intelligent Estimators to Disturbance Observer to Enhance Robustness of Active Magnetic Bearing Controller International Journal of Control Science and Engineering 217, 7(2): 25-31 DOI: 1.5923/j.control.21772.1 Integration Intelligent Estimators to Disturbance Observer to Enhance Robustness of Active Magnetic

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

of harmonic cancellation algorithms The internal model principle enable precision motion control Dynamic control

of harmonic cancellation algorithms The internal model principle enable precision motion control Dynamic control Dynamic control Harmonic cancellation algorithms enable precision motion control The internal model principle is a 30-years-young idea that serves as the basis for a myriad of modern motion control approaches.

More information

TRACK-FOLLOWING CONTROLLER FOR HARD DISK DRIVE ACTUATOR USING QUANTITATIVE FEEDBACK THEORY

TRACK-FOLLOWING CONTROLLER FOR HARD DISK DRIVE ACTUATOR USING QUANTITATIVE FEEDBACK THEORY Proceedings of the IASTED International Conference Modelling, Identification and Control (AsiaMIC 2013) April 10-12, 2013 Phuket, Thailand TRACK-FOLLOWING CONTROLLER FOR HARD DISK DRIVE ACTUATOR USING

More information

IJCSIET--International Journal of Computer Science information and Engg., Technologies ISSN

IJCSIET--International Journal of Computer Science information and Engg., Technologies ISSN A novel control strategy for Mitigation of Inrush currents in Load Transformers using Series Voltage source Converter Pulijala Pandu Ranga Rao *1, VenuGopal Reddy Bodha *2 #1 PG student, Power Electronics

More information

Design Applications of Synchronized Controller for Micro Precision Servo Press Machine

Design Applications of Synchronized Controller for Micro Precision Servo Press Machine International Journal of Electrical Energy, Vol, No, March Design Applications of Synchronized Controller for Micro Precision Servo Press Machine ShangLiang Chen and HoaiNam Dinh Institute of Manufacturing

More information

Design of Fractional Order Proportionalintegrator-derivative. Loop of Permanent Magnet Synchronous Motor

Design of Fractional Order Proportionalintegrator-derivative. Loop of Permanent Magnet Synchronous Motor I J C T A, 9(34) 2016, pp. 811-816 International Science Press Design of Fractional Order Proportionalintegrator-derivative Controller for Current Loop of Permanent Magnet Synchronous Motor Ali Motalebi

More information

Robot Joint Angle Control Based on Self Resonance Cancellation Using Double Encoders

Robot Joint Angle Control Based on Self Resonance Cancellation Using Double Encoders Robot Joint Angle Control Based on Self Resonance Cancellation Using Double Encoders Akiyuki Hasegawa, Hiroshi Fujimoto and Taro Takahashi 2 Abstract Research on the control using a load-side encoder for

More information

Automatic Load Frequency Control of Two Area Power System Using Proportional Integral Derivative Tuning Through Internal Model Control

Automatic Load Frequency Control of Two Area Power System Using Proportional Integral Derivative Tuning Through Internal Model Control IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 11, Issue 2 Ver. I (Mar. Apr. 2016), PP 13-17 www.iosrjournals.org Automatic Load Frequency

More information

Intelligent Learning Control Strategies for Position Tracking of AC Servomotor

Intelligent Learning Control Strategies for Position Tracking of AC Servomotor Intelligent Learning Control Strategies for Position Tracking of AC Servomotor M.Vijayakarthick 1 1Assistant Professor& Department of Electronics and Instrumentation Engineering, Annamalai University,

More information

Design Of PID Controller In Automatic Voltage Regulator (AVR) System Using PSO Technique

Design Of PID Controller In Automatic Voltage Regulator (AVR) System Using PSO Technique Design Of PID Controller In Automatic Voltage Regulator (AVR) System Using PSO Technique Vivek Kumar Bhatt 1, Dr. Sandeep Bhongade 2 1,2 Department of Electrical Engineering, S. G. S. Institute of Technology

More information

AHAPTIC interface is a kinesthetic link between a human

AHAPTIC interface is a kinesthetic link between a human IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 13, NO. 5, SEPTEMBER 2005 737 Time Domain Passivity Control With Reference Energy Following Jee-Hwan Ryu, Carsten Preusche, Blake Hannaford, and Gerd

More information

Step vs. Servo Selecting the Best

Step vs. Servo Selecting the Best Step vs. Servo Selecting the Best Dan Jones Over the many years, there have been many technical papers and articles about which motor is the best. The short and sweet answer is let s talk about the application.

More information

CLOSED-LOOP-regulated pulsewidth-modulated (PWM)

CLOSED-LOOP-regulated pulsewidth-modulated (PWM) IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 14, NO. 5, SEPTEMBER 1999 973 Adaptive Repetitive Control of PWM Inverters for Very Low THD AC-Voltage Regulation with Unknown Loads Ying-Yu Tzou, Member, IEEE,

More information

STATCOM with FLC and Pi Controller for a Three-Phase SEIG Feeding Single-Phase Loads

STATCOM with FLC and Pi Controller for a Three-Phase SEIG Feeding Single-Phase Loads STATCOM with FLC and Pi Controller for a Three-Phase SEIG Feeding Single-Phase Loads Ponananthi.V, Rajesh Kumar. B Final year PG student, Department of Power Systems Engineering, M.Kumarasamy College of

More information

Speed control of Permanent Magnet Synchronous Motor using Power Reaching Law based Sliding Mode Controller

Speed control of Permanent Magnet Synchronous Motor using Power Reaching Law based Sliding Mode Controller Speed control of Permanent Magnet Synchronous Motor using Power Reaching Law based Sliding Mode Controller NAVANEETHAN S 1, JOVITHA JEROME 2 1 Assistant Professor, 2 Professor & Head Department of Instrumentation

More information

Sensorless control of BLDC motor based on Hysteresis comparator with PI control for speed regulation

Sensorless control of BLDC motor based on Hysteresis comparator with PI control for speed regulation Sensorless control of BLDC motor based on Hysteresis comparator with PI control for speed regulation Thirumoni.T 1,Femi.R 2 PG Student 1, Assistant Professor 2, Department of Electrical and Electronics

More information

Page ENSC387 - Introduction to Electro-Mechanical Sensors and Actuators: Simon Fraser University Engineering Science

Page ENSC387 - Introduction to Electro-Mechanical Sensors and Actuators: Simon Fraser University Engineering Science Motor Driver and Feedback Control: The feedback control system of a dc motor typically consists of a microcontroller, which provides drive commands (rotation and direction) to the driver. The driver is

More information

Andrea Zanchettin Automatic Control 1 AUTOMATIC CONTROL. Andrea M. Zanchettin, PhD Spring Semester, Linear control systems design

Andrea Zanchettin Automatic Control 1 AUTOMATIC CONTROL. Andrea M. Zanchettin, PhD Spring Semester, Linear control systems design Andrea Zanchettin Automatic Control 1 AUTOMATIC CONTROL Andrea M. Zanchettin, PhD Spring Semester, 2018 Linear control systems design Andrea Zanchettin Automatic Control 2 The control problem Let s introduce

More information

Chaotic speed synchronization control of multiple induction motors using stator flux regulation. IEEE Transactions on Magnetics. Copyright IEEE.

Chaotic speed synchronization control of multiple induction motors using stator flux regulation. IEEE Transactions on Magnetics. Copyright IEEE. Title Chaotic speed synchronization control of multiple induction motors using stator flux regulation Author(s) ZHANG, Z; Chau, KT; Wang, Z Citation IEEE Transactions on Magnetics, 2012, v. 48 n. 11, p.

More information

Position Control of DC Motor by Compensating Strategies

Position Control of DC Motor by Compensating Strategies Position Control of DC Motor by Compensating Strategies S Prem Kumar 1 J V Pavan Chand 1 B Pangedaiah 1 1. Assistant professor of Laki Reddy Balireddy College Of Engineering, Mylavaram Abstract - As the

More information

POSITION TRACKING PERFORMANCE OF AC SERVOMOTOR BASED ON NEW MODIFIED REPETITIVE CONTROL STRATEGY

POSITION TRACKING PERFORMANCE OF AC SERVOMOTOR BASED ON NEW MODIFIED REPETITIVE CONTROL STRATEGY www.arpapress.com/volumes/vol10issue1/ijrras_10_1_16.pdf POSITION TRACKING PERFORMANCE OF AC SERVOMOTOR BASED ON NEW MODIFIED REPETITIVE CONTROL STRATEGY M. Vijayakarthick 1 & P.K. Bhaba 2 1 Department

More information

Brushless Motor without a Shaft-Mounted Position Sensor. Tsunehiro Endo Fumio Tajima Member Member. Summary

Brushless Motor without a Shaft-Mounted Position Sensor. Tsunehiro Endo Fumio Tajima Member Member. Summary Paper UDC 621.313.3-573: 621.316.71:681.532.8:621.382 Brushless Motor without a Shaft-Mounted Position Sensor By Tsunehiro Endo Fumio Tajima Member Member Kenichi Iizuka Member Summary Hideo Uzuhashi Non-member

More information

Design of A Closed Loop Speed Control For BLDC Motor

Design of A Closed Loop Speed Control For BLDC Motor International Refereed Journal of Engineering and Science (IRJES) ISSN (Online) 2319-183X, (Print) 2319-1821 Volume 3, Issue 11 (November 214), PP.17-111 Design of A Closed Loop Speed Control For BLDC

More information

REDUCING THE VIBRATIONS OF AN UNBALANCED ROTARY ENGINE BY ACTIVE FORCE CONTROL. M. Mohebbi 1*, M. Hashemi 1

REDUCING THE VIBRATIONS OF AN UNBALANCED ROTARY ENGINE BY ACTIVE FORCE CONTROL. M. Mohebbi 1*, M. Hashemi 1 International Journal of Technology (2016) 1: 141-148 ISSN 2086-9614 IJTech 2016 REDUCING THE VIBRATIONS OF AN UNBALANCED ROTARY ENGINE BY ACTIVE FORCE CONTROL M. Mohebbi 1*, M. Hashemi 1 1 Faculty of

More information

Active Stabilization of a Mechanical Structure

Active Stabilization of a Mechanical Structure Active Stabilization of a Mechanical Structure L. Brunetti 1, N. Geffroy 1, B. Bolzon 1, A. Jeremie 1, J. Lottin 2, B. Caron 2, R. Oroz 2 1- Laboratoire d Annecy-le-Vieux de Physique des Particules LAPP-IN2P3-CNRS-Université

More information

Lecture 10. Lab next week: Agenda: Control design fundamentals. Proportional Control Proportional-Integral Control

Lecture 10. Lab next week: Agenda: Control design fundamentals. Proportional Control Proportional-Integral Control 264 Lab next week: Lecture 10 Lab 17: Proportional Control Lab 18: Proportional-Integral Control (1/2) Agenda: Control design fundamentals Objectives (Tracking, disturbance/noise rejection, robustness)

More information

Nonlinear Control Lecture

Nonlinear Control Lecture Nonlinear Control Lecture Just what constitutes nonlinear control? Control systems whose behavior cannot be analyzed by linear control theory. All systems contain some nonlinearities, most are small and

More information

On-Line Dead-Time Compensation Method Based on Time Delay Control

On-Line Dead-Time Compensation Method Based on Time Delay Control IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 11, NO. 2, MARCH 2003 279 On-Line Dead-Time Compensation Method Based on Time Delay Control Hyun-Soo Kim, Kyeong-Hwa Kim, and Myung-Joong Youn Abstract

More information

Chapter 2 The Test Benches

Chapter 2 The Test Benches Chapter 2 The Test Benches 2.1 An Active Hydraulic Suspension System Using Feedback Compensation The structure of the active hydraulic suspension (active isolation configuration) is presented in Fig. 2.1.

More information

Optimizing Performance Using Slotless Motors. Mark Holcomb, Celera Motion

Optimizing Performance Using Slotless Motors. Mark Holcomb, Celera Motion Optimizing Performance Using Slotless Motors Mark Holcomb, Celera Motion Agenda 1. How PWM drives interact with motor resistance and inductance 2. Ways to reduce motor heating 3. Locked rotor test vs.

More information

Adaptive Notch Filter Using Real-Time Parameter Estimation

Adaptive Notch Filter Using Real-Time Parameter Estimation IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 19, NO. 3, MAY 2011 673 Adaptive Notch Filter Using Real-Time Parameter Estimation Jason Levin, Member, IEEE, Néstor O. Pérez-Arancibia, Member, IEEE,

More information

Modeling and Control of Mold Oscillation

Modeling and Control of Mold Oscillation ANNUAL REPORT UIUC, August 8, Modeling and Control of Mold Oscillation Vivek Natarajan (Ph.D. Student), Joseph Bentsman Department of Mechanical Science and Engineering University of Illinois at UrbanaChampaign

More information

FlexLab and LevLab: A Portable Lab for Dynamics and Control Teaching

FlexLab and LevLab: A Portable Lab for Dynamics and Control Teaching FlexLab and LevLab: A Portable Lab for Dynamics and Control Teaching Lei Zhou, Mohammad Imani Nejad, David L. Trumper Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge,

More information

THE narrow-band disturbances with spectral energies concentrating

THE narrow-band disturbances with spectral energies concentrating IEEE TRANSACTIONS ON MAGNETICS, VOL. 42, NO. 11, NOVEMBER 2006 3745 Optimal Narrow-Band Disturbance Filter PZT-Actuated Head Positioning Control on a Spinstand Jinchuan Zheng 1;2, Guoxiao Guo 1, Youyi

More information

Analysis of Indirect Temperature-Rise Tests of Induction Machines Using Time Stepping Finite Element Method

Analysis of Indirect Temperature-Rise Tests of Induction Machines Using Time Stepping Finite Element Method IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 16, NO. 1, MARCH 2001 55 Analysis of Indirect Temperature-Rise Tests of Induction Machines Using Time Stepping Finite Element Method S. L. Ho and W. N. Fu Abstract

More information

MAGNETIC SERVO levitation (MSL) [4], [7], [8],

MAGNETIC SERVO levitation (MSL) [4], [7], [8], IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 45, NO. 6, DECEMBER 1998 921 Sliding-Mode Control of a Nonlinear-Input System: Application to a Magnetically Levitated Fast-Tool Servo Hector M. Gutierrez,

More information

Magnetic Bearing Literature Review. Team 2: The Floaters. Ivett Ortega, Wole Oyelola, Claudia Vargas

Magnetic Bearing Literature Review. Team 2: The Floaters. Ivett Ortega, Wole Oyelola, Claudia Vargas Magnetic Bearing Literature Review Team 2: The Floaters Ivett Ortega, Wole Oyelola, Claudia Vargas Our project is to create a semi-frictionless bearing that is controlled by a feedback control system.

More information

Automatic Control Motion control Advanced control techniques

Automatic Control Motion control Advanced control techniques Automatic Control Motion control Advanced control techniques (luca.bascetta@polimi.it) Politecnico di Milano Dipartimento di Elettronica, Informazione e Bioingegneria Motivations (I) 2 Besides the classical

More information

Chaotic speed synchronization control of multiple induction motors using stator flux regulation

Chaotic speed synchronization control of multiple induction motors using stator flux regulation Title Chaotic speed synchronization control of multiple induction motors using stator flux regulation Author(s) ZHANG, Z; Chau, KT; Wang, Z Citation IEEE Transactions on Magnetics, 2012, v. 48 n. 11, p.

More information

Frequency Capture Characteristics of Gearbox Bidirectional Rotary Vibration System

Frequency Capture Characteristics of Gearbox Bidirectional Rotary Vibration System Frequency Capture Characteristics of Gearbox Bidirectional Rotary Vibration System Ruqiang Mou, Li Hou, Zhijun Sun, Yongqiao Wei and Bo Li School of Manufacturing Science and Engineering, Sichuan University

More information

DUAL STROKE AND PHASE CONTROL AND SYSTEM IDENTIFICATION OF LINEAR COMPRESSOR OF A SPLIT-STIRLING CRYOCOOLER

DUAL STROKE AND PHASE CONTROL AND SYSTEM IDENTIFICATION OF LINEAR COMPRESSOR OF A SPLIT-STIRLING CRYOCOOLER 116 Asian Journal of Control, Vol. 1, No. 2, pp. 116-121, June 1999 DUAL STROKE AND PHASE CONTROL AND SYSTEM IDENTIFICATION OF LINEAR COMPRESSOR OF A SPLIT-STIRLING CRYOCOOLER Yee-Pien Yang and Wei-Ting

More information

Machine Tools with an Enhanced Ball Screw Drive in Vertical Axis for Shaping of Micro Textures

Machine Tools with an Enhanced Ball Screw Drive in Vertical Axis for Shaping of Micro Textures Proceedings of the euspen International Conference Zurich - May 28 Machine Tools with an Enhanced Ball Screw Drive in Vertical Axis for Shaping of Micro Textures D. Kono 1, T. Fujita 1, A. Matsubara 1,

More information

MTE 360 Automatic Control Systems University of Waterloo, Department of Mechanical & Mechatronics Engineering

MTE 360 Automatic Control Systems University of Waterloo, Department of Mechanical & Mechatronics Engineering MTE 36 Automatic Control Systems University of Waterloo, Department of Mechanical & Mechatronics Engineering Laboratory #1: Introduction to Control Engineering In this laboratory, you will become familiar

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

Dynamic Vibration Absorber

Dynamic Vibration Absorber Part 1B Experimental Engineering Integrated Coursework Location: DPO Experiment A1 (Short) Dynamic Vibration Absorber Please bring your mechanics data book and your results from first year experiment 7

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

Position Control of AC Servomotor Using Internal Model Control Strategy

Position Control of AC Servomotor Using Internal Model Control Strategy Position Control of AC Servomotor Using Internal Model Control Strategy Ahmed S. Abd El-hamid and Ahmed H. Eissa Corresponding Author email: Ahmednrc64@gmail.com Abstract: This paper focuses on the design

More information

Rapid and precise control of a micro-manipulation stage combining H with ILC algorithm

Rapid and precise control of a micro-manipulation stage combining H with ILC algorithm Rapid and precise control of a micro-manipulation stage combining H with ILC algorithm *Jie Ling 1 and Xiaohui Xiao 1, School of Power and Mechanical Engineering, WHU, Wuhan, China xhxiao@whu.edu.cn ABSTRACT

More information

Y.L. Cheung and W.O. Wong Department of Mechanical Engineering The Hong Kong Polytechnic University, Hong Kong SAR, China

Y.L. Cheung and W.O. Wong Department of Mechanical Engineering The Hong Kong Polytechnic University, Hong Kong SAR, China This is the re-ublished Version. H-infinity optimization of a variant design of the dynamic vibration absorber revisited and new results Y.L. Cheung and W.O. Wong Department of Mechanical Engineering The

More information

EE 560 Electric Machines and Drives. Autumn 2014 Final Project. Contents

EE 560 Electric Machines and Drives. Autumn 2014 Final Project. Contents EE 560 Electric Machines and Drives. Autumn 2014 Final Project Page 1 of 53 Prof. N. Nagel December 8, 2014 Brian Howard Contents Introduction 2 Induction Motor Simulation 3 Current Regulated Induction

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

II. PROPOSED CLOSED LOOP SPEED CONTROL OF PMSM BLOCK DIAGRAM

II. PROPOSED CLOSED LOOP SPEED CONTROL OF PMSM BLOCK DIAGRAM Closed Loop Speed Control of Permanent Magnet Synchronous Motor fed by SVPWM Inverter Malti Garje 1, D.R.Patil 2 1,2 Electrical Engineering Department, WCE Sangli Abstract This paper presents very basic

More information

Literature Review for Shunt Active Power Filters

Literature Review for Shunt Active Power Filters Chapter 2 Literature Review for Shunt Active Power Filters In this chapter, the in depth and extensive literature review of all the aspects related to current error space phasor based hysteresis controller

More information

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering Vol. 2, Issue 6, June 2013

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering Vol. 2, Issue 6, June 2013 Efficient Harmonics Reduction Based Three Phase H Bridge Speed Controller for DC Motor Speed Control using Hysteresis Controlled Synchronized Pulse Generator Sanjay Kumar Patel 1, Dhaneshwari Sahu 2, Vikrant

More information

Design on LVDT Displacement Sensor Based on AD598

Design on LVDT Displacement Sensor Based on AD598 Sensors & Transducers 2013 by IFSA http://www.sensorsportal.com Design on LDT Displacement Sensor Based on AD598 Ran LIU, Hui BU North China University of Water Resources and Electric Power, 450045, China

More information

3. What is hysteresis loss? Also mention a method to minimize the loss. (N-11, N-12)

3. What is hysteresis loss? Also mention a method to minimize the loss. (N-11, N-12) DHANALAKSHMI COLLEGE OF ENGINEERING, CHENNAI DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING EE 6401 ELECTRICAL MACHINES I UNIT I : MAGNETIC CIRCUITS AND MAGNETIC MATERIALS Part A (2 Marks) 1. List

More information

MODELING AND ANALYSIS OF IMPEDANCE NETWORK VOLTAGE SOURCE CONVERTER FED TO INDUSTRIAL DRIVES

MODELING AND ANALYSIS OF IMPEDANCE NETWORK VOLTAGE SOURCE CONVERTER FED TO INDUSTRIAL DRIVES Int. J. Engg. Res. & Sci. & Tech. 2015 xxxxxxxxxxxxxxxxxxxxxxxx, 2015 Research Paper MODELING AND ANALYSIS OF IMPEDANCE NETWORK VOLTAGE SOURCE CONVERTER FED TO INDUSTRIAL DRIVES N Lakshmipriya 1* and L

More information

DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING BANGLADESH UNIVERSITY OF ENGINEERING & TECHNOLOGY EEE 402 : CONTROL SYSTEMS SESSIONAL

DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING BANGLADESH UNIVERSITY OF ENGINEERING & TECHNOLOGY EEE 402 : CONTROL SYSTEMS SESSIONAL DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING BANGLADESH UNIVERSITY OF ENGINEERING & TECHNOLOGY EEE 402 : CONTROL SYSTEMS SESSIONAL Experiment No. 1(a) : Modeling of physical systems and study of

More information

H-BRIDGE system used in high power dc dc conversion

H-BRIDGE system used in high power dc dc conversion IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 1, JANUARY 2008 353 Quasi Current Mode Control for the Phase-Shifted Series Resonant Converter Yan Lu, K. W. Eric Cheng, Senior Member, IEEE, and S.

More information

A Simple Sensor-less Vector Control System for Variable

A Simple Sensor-less Vector Control System for Variable Paper A Simple Sensor-less Vector Control System for Variable Speed Induction Motor Drives Student Member Hasan Zidan (Kyushu Institute of Technology) Non-member Shuichi Fujii (Kyushu Institute of Technology)

More information

VECTOR CONTROL SCHEME FOR INDUCTION MOTOR WITH DIFFERENT CONTROLLERS FOR NEGLECTING THE END EFFECTS IN HEV APPLICATIONS

VECTOR CONTROL SCHEME FOR INDUCTION MOTOR WITH DIFFERENT CONTROLLERS FOR NEGLECTING THE END EFFECTS IN HEV APPLICATIONS VECTOR CONTROL SCHEME FOR INDUCTION MOTOR WITH DIFFERENT CONTROLLERS FOR NEGLECTING THE END EFFECTS IN HEV APPLICATIONS M.LAKSHMISWARUPA 1, G.TULASIRAMDAS 2 & P.V.RAJGOPAL 3 1 Malla Reddy Engineering College,

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 A Statcom-Control Scheme for Power Quality Improvement of Grid Connected Wind Energy System B.T.RAMAKRISHNARAO*, B.ESWARARAO**, L.NARENDRA**, K.PRAVALLIKA** * Associate.Professor, Dept.of EEE, Lendi Inst.Of

More information

Fundamentals of Servo Motion Control

Fundamentals of Servo Motion Control Fundamentals of Servo Motion Control The fundamental concepts of servo motion control have not changed significantly in the last 50 years. The basic reasons for using servo systems in contrast to open

More information

A Practical Guide to Free Energy Devices

A Practical Guide to Free Energy Devices A Practical Guide to Free Energy Devices Part PatD14: Last updated: 25th February 2006 Author: Patrick J. Kelly This patent application shows the details of a device which it is claimed, can produce sufficient

More information

ANNA UNIVERSITY :: CHENNAI MODEL QUESTION PAPER(V-SEMESTER) B.E. ELECTRONICS AND COMMUNICATION ENGINEERING EC334 - CONTROL SYSTEMS

ANNA UNIVERSITY :: CHENNAI MODEL QUESTION PAPER(V-SEMESTER) B.E. ELECTRONICS AND COMMUNICATION ENGINEERING EC334 - CONTROL SYSTEMS ANNA UNIVERSITY :: CHENNAI - 600 025 MODEL QUESTION PAPER(V-SEMESTER) B.E. ELECTRONICS AND COMMUNICATION ENGINEERING EC334 - CONTROL SYSTEMS Time: 3hrs Max Marks: 100 Answer all Questions PART - A (10

More information

Upgrading from Stepper to Servo

Upgrading from Stepper to Servo Upgrading from Stepper to Servo Switching to Servos Provides Benefits, Here s How to Reduce the Cost and Challenges Byline: Scott Carlberg, Motion Product Marketing Manager, Yaskawa America, Inc. The customers

More information

Design and Implementation of less quiescent current, less dropout LDO Regulator in 90nm Technology Madhukumar A S #1, M.

Design and Implementation of less quiescent current, less dropout LDO Regulator in 90nm Technology Madhukumar A S #1, M. Design and Implementation of less quiescent current, less dropout LDO Regulator in 90nm Technology Madhukumar A S #1, M.Nagabhushan #2 #1 M.Tech student, Dept. of ECE. M.S.R.I.T, Bangalore, INDIA #2 Asst.

More information

Andrea Zanchettin Automatic Control 1 AUTOMATIC CONTROL. Andrea M. Zanchettin, PhD Winter Semester, Linear control systems design Part 1

Andrea Zanchettin Automatic Control 1 AUTOMATIC CONTROL. Andrea M. Zanchettin, PhD Winter Semester, Linear control systems design Part 1 Andrea Zanchettin Automatic Control 1 AUTOMATIC CONTROL Andrea M. Zanchettin, PhD Winter Semester, 2018 Linear control systems design Part 1 Andrea Zanchettin Automatic Control 2 Step responses Assume

More information

DC-Voltage fluctuation elimination through a dc-capacitor current control for PMSG under unbalanced grid voltage conditions

DC-Voltage fluctuation elimination through a dc-capacitor current control for PMSG under unbalanced grid voltage conditions DC-Voltage fluctuation elimination through a dc-capacitor current control for PMSG under unbalanced grid voltage conditions P Kamalchandran 1, A.L.Kumarappan 2 PG Scholar, Sri Sairam Engineering College,

More information

Electronics and Instrumentation Name ENGR-4220 Fall 1999 Section Modeling the Cantilever Beam Supplemental Info for Project 1.

Electronics and Instrumentation Name ENGR-4220 Fall 1999 Section Modeling the Cantilever Beam Supplemental Info for Project 1. Name ENGR-40 Fall 1999 Section Modeling the Cantilever Beam Supplemental Info for Project 1 The cantilever beam has a simple equation of motion. If we assume that the mass is located at the end of the

More information

International Journal of Scientific & Engineering Research, Volume 5, Issue 6, June ISSN

International Journal of Scientific & Engineering Research, Volume 5, Issue 6, June ISSN International Journal of Scientific & Engineering Research, Volume 5, Issue 6, June-2014 64 Voltage Regulation of Buck Boost Converter Using Non Linear Current Control 1 D.Pazhanivelrajan, M.E. Power Electronics

More information

SIGNIFICANT progress in areal storage density of a magnetic

SIGNIFICANT progress in areal storage density of a magnetic IEEE TRANSACTIONS ON MAGNETICS, VOL. 42, NO. 2, FEBRUARY 2006 247 Robust Dynamic Modeling and Control of Dual-Stage Actuators Raymond A. de Callafon, Ryozo Nagamune, and Roberto Horowitz Department of

More information