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


 Brooke Simmons
 1 years ago
 Views:
Transcription
1 IEEE TRANSACTIONS ON MAGNETICS, VOL. 41, NO. 3, MARCH Application of Voice Coil Motors in Active Dynamic Vibration Absorbers YiDe Chen, ChyunChau Fuh, and PiCheng 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 rootlocus theorem. We have evaluated the performance of the active vibration absorber by both simulations and experiments. Index Terms Active vibration absorber, notch filter, rootlocus 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 highprecision 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 rootlocus 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 lowcarbon 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 lefthand 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 freebody diagram and Newton s second law of motion, the governing equations can be deduced. The original 2degree 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 lineartimeinvariant 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 rootlocus 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 highfrequency disturbances in communications technologies. From the frequencydomain 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 closedloop system s stability. The transfer function for this closedloop 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 rootlocus 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 rootlocus 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 rootlocus 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 rootlocus 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. Rootlocus plot in function of K at! =25(rad/s). Fig. 9. Resolution chart of the eddycurrent 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 eddycurrent gap sensors (IAS10A24IL). 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 rootlocus 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, Semiactive 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 servopositioning system with a voltagedriven voicecoil 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 HARDDISK DRIVES USING PZT ACTUATED SUSPENSION SYSTEMS. MengShiun Tsai, WeiHsiung Yuan and JiaMing Chang
ICSV14 Cairns Australia 912 July, 27 ACTIVE VIBRATION CONTROL OF HARDDISK DRIVES USING PZT ACTUATED SUSPENSION SYSTEMS Abstract MengShiun Tsai, WeiHsiung Yuan and JiaMing Chang Department of Mechanical
More information1045. Vibration of flexible rotor systems with twodegreeoffreedom
1045. Vibration of flexible rotor systems with twodegreeoffreedom 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 informationMAGNETIC LEVITATION SUSPENSION CONTROL SYSTEM FOR REACTION WHEEL
IMPACT: International Journal of Research in Engineering & Technology (IMPACT: IJRET) ISSN 23218843 Vol. 1, Issue 4, Sep 2013, 16 Impact Journals MAGNETIC LEVITATION SUSPENSION CONTROL SYSTEM FOR REACTION
More informationActive 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/L792, Livermore, CA. 94550 Abstract Proper configurations
More informationConventional 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 informationAutomatic Control Systems 2017 Spring Semester
Automatic Control Systems 2017 Spring Semester Assignment Set 1 Dr. Kalyana C. Veluvolu Deadline: 11APR  16:00 hours @ IT1815 1) Find the transfer function / for the following system using block diagram
More informationPreliminary study of the vibration displacement measurement by using strain gauge
Songklanakarin J. Sci. Technol. 32 (5), 453459, Sep.  Oct. 2010 Original Article Preliminary study of the vibration displacement measurement by using strain gauge Siripong Eamchaimongkol* Department
More informationSelfsensing 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 informationStudy 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 informationCHAPTER 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 informationEnergy 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 TorresPerez et al 2018 J.
More informationLatest 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 informationINSIDE 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 TimeVarying Group Filtering Scheme Chin Kwan Thum 1;2, Chunling Du 1, Ben
More informationEC6405  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 informationControl 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 informationActive 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 informationUnbalance 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 information3.1.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 informationINTELLIGENT 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) 34 December 2010, Faculty of Mechanical Engineering, UMP Pekan, Kuantan, Pahang, Malaysia; pp. 540549
More informationMinimum Copper Loss FluxWeakening Control of Surface Mounted Permanent Magnet Synchronous Motors
IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 18, NO. 4, JULY 2003 929 Minimum Copper Loss FluxWeakening Control of Surface Mounted Permanent Magnet Synchronous Motors JiunnJiang Chen and KanPing Chin,
More informationADUALSTAGE actuator (DSA) servo system is characterized
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 16, NO. 4, JULY 2008 717 Nonlinear Feedback Control of a DualStage Actuator System for Reduced Settling Time Jinchuan Zheng and Minyue Fu, Fellow,
More informationSystem 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 informationA 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 informationBSNL 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 informationDisturbance Rejection Using SelfTuning ARMARKOV Adaptive Control with Simultaneous Identification
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 9, NO. 1, JANUARY 2001 101 Disturbance Rejection Using SelfTuning ARMARKOV Adaptive Control with Simultaneous Identification Harshad S. Sane, Ravinder
More informationDC 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 informationIntegration Intelligent Estimators to Disturbance Observer to Enhance Robustness of Active Magnetic Bearing Controller
International Journal of Control Science and Engineering 217, 7(2): 2531 DOI: 1.5923/j.control.21772.1 Integration Intelligent Estimators to Disturbance Observer to Enhance Robustness of Active Magnetic
More informationIN 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 FieldOriented Control YihNeng Lin and ChernLin Chen, Member, IEEE Abstract
More informationof 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 30yearsyoung idea that serves as the basis for a myriad of modern motion control approaches.
More informationTRACKFOLLOWING CONTROLLER FOR HARD DISK DRIVE ACTUATOR USING QUANTITATIVE FEEDBACK THEORY
Proceedings of the IASTED International Conference Modelling, Identification and Control (AsiaMIC 2013) April 1012, 2013 Phuket, Thailand TRACKFOLLOWING CONTROLLER FOR HARD DISK DRIVE ACTUATOR USING
More informationIJCSIETInternational 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 informationDesign 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 informationDesign of Fractional Order Proportionalintegratorderivative. Loop of Permanent Magnet Synchronous Motor
I J C T A, 9(34) 2016, pp. 811816 International Science Press Design of Fractional Order Proportionalintegratorderivative Controller for Current Loop of Permanent Magnet Synchronous Motor Ali Motalebi
More informationRobot 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 loadside encoder for
More informationAutomatic Load Frequency Control of Two Area Power System Using Proportional Integral Derivative Tuning Through Internal Model Control
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE) eissn: 22781676,pISSN: 23203331, Volume 11, Issue 2 Ver. I (Mar. Apr. 2016), PP 1317 www.iosrjournals.org Automatic Load Frequency
More informationIntelligent 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 informationDesign 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 informationAHAPTIC 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 JeeHwan Ryu, Carsten Preusche, Blake Hannaford, and Gerd
More informationStep 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 informationCLOSEDLOOPregulated pulsewidthmodulated (PWM)
IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 14, NO. 5, SEPTEMBER 1999 973 Adaptive Repetitive Control of PWM Inverters for Very Low THD ACVoltage Regulation with Unknown Loads YingYu Tzou, Member, IEEE,
More informationSTATCOM with FLC and Pi Controller for a ThreePhase SEIG Feeding SinglePhase Loads
STATCOM with FLC and Pi Controller for a ThreePhase SEIG Feeding SinglePhase Loads Ponananthi.V, Rajesh Kumar. B Final year PG student, Department of Power Systems Engineering, M.Kumarasamy College of
More informationSpeed 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 informationSensorless 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 informationPage ENSC387  Introduction to ElectroMechanical 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 informationAndrea 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 informationChaotic 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 informationPosition 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 informationPOSITION 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 informationBrushless Motor without a ShaftMounted Position Sensor. Tsunehiro Endo Fumio Tajima Member Member. Summary
Paper UDC 621.313.3573: 621.316.71:681.532.8:621.382 Brushless Motor without a ShaftMounted Position Sensor By Tsunehiro Endo Fumio Tajima Member Member Kenichi Iizuka Member Summary Hideo Uzuhashi Nonmember
More informationDesign of A Closed Loop Speed Control For BLDC Motor
International Refereed Journal of Engineering and Science (IRJES) ISSN (Online) 2319183X, (Print) 23191821 Volume 3, Issue 11 (November 214), PP.17111 Design of A Closed Loop Speed Control For BLDC
More informationREDUCING THE VIBRATIONS OF AN UNBALANCED ROTARY ENGINE BY ACTIVE FORCE CONTROL. M. Mohebbi 1*, M. Hashemi 1
International Journal of Technology (2016) 1: 141148 ISSN 20869614 IJTech 2016 REDUCING THE VIBRATIONS OF AN UNBALANCED ROTARY ENGINE BY ACTIVE FORCE CONTROL M. Mohebbi 1*, M. Hashemi 1 1 Faculty of
More informationActive 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 AnnecyleVieux de Physique des Particules LAPPIN2P3CNRSUniversité
More informationLecture 10. Lab next week: Agenda: Control design fundamentals. Proportional Control ProportionalIntegral Control
264 Lab next week: Lecture 10 Lab 17: Proportional Control Lab 18: ProportionalIntegral Control (1/2) Agenda: Control design fundamentals Objectives (Tracking, disturbance/noise rejection, robustness)
More informationNonlinear 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 informationOnLine DeadTime Compensation Method Based on Time Delay Control
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 11, NO. 2, MARCH 2003 279 OnLine DeadTime Compensation Method Based on Time Delay Control HyunSoo Kim, KyeongHwa Kim, and MyungJoong Youn Abstract
More informationChapter 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 informationOptimizing 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 informationAdaptive Notch Filter Using RealTime Parameter Estimation
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 19, NO. 3, MAY 2011 673 Adaptive Notch Filter Using RealTime Parameter Estimation Jason Levin, Member, IEEE, Néstor O. PérezArancibia, Member, IEEE,
More informationModeling 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 informationFlexLab 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 informationTHE narrowband disturbances with spectral energies concentrating
IEEE TRANSACTIONS ON MAGNETICS, VOL. 42, NO. 11, NOVEMBER 2006 3745 Optimal NarrowBand Disturbance Filter PZTActuated Head Positioning Control on a Spinstand Jinchuan Zheng 1;2, Guoxiao Guo 1, Youyi
More informationAnalysis of Indirect TemperatureRise 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 TemperatureRise Tests of Induction Machines Using Time Stepping Finite Element Method S. L. Ho and W. N. Fu Abstract
More informationMAGNETIC SERVO levitation (MSL) [4], [7], [8],
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 45, NO. 6, DECEMBER 1998 921 SlidingMode Control of a NonlinearInput System: Application to a Magnetically Levitated FastTool Servo Hector M. Gutierrez,
More informationMagnetic 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 semifrictionless bearing that is controlled by a feedback control system.
More informationAutomatic 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 informationChaotic 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 informationFrequency 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 informationDUAL STROKE AND PHASE CONTROL AND SYSTEM IDENTIFICATION OF LINEAR COMPRESSOR OF A SPLITSTIRLING CRYOCOOLER
116 Asian Journal of Control, Vol. 1, No. 2, pp. 116121, June 1999 DUAL STROKE AND PHASE CONTROL AND SYSTEM IDENTIFICATION OF LINEAR COMPRESSOR OF A SPLITSTIRLING CRYOCOOLER YeePien Yang and WeiTing
More informationMachine 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 informationMTE 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 informationSingleWire CurrentShare Paralleling of CurrentModeControlled DC Power Supplies
780 IEEE TRANSACTION ON INDUSTRIAL ELECTRONICS, VOL. 47, NO. 4, AUGUST 2000 SingleWire CurrentShare Paralleling of CurrentModeControlled DC Power Supplies ChangShiarn Lin and ChernLin Chen, Senior
More informationDynamic 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 informationA 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 informationPosition Control of AC Servomotor Using Internal Model Control Strategy
Position Control of AC Servomotor Using Internal Model Control Strategy Ahmed S. Abd Elhamid and Ahmed H. Eissa Corresponding Author email: Ahmednrc64@gmail.com Abstract: This paper focuses on the design
More informationRapid and precise control of a micromanipulation stage combining H with ILC algorithm
Rapid and precise control of a micromanipulation 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 informationY.L. Cheung and W.O. Wong Department of Mechanical Engineering The Hong Kong Polytechnic University, Hong Kong SAR, China
This is the reublished Version. Hinfinity 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 informationEE 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 informationRECENTLY, the harmonics current in a power grid can
IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 2, MARCH 2008 715 A Novel ThreePhase PFC Rectifier Using a Harmonic Current Injection Method JunIchi Itoh, Member, IEEE, and Itsuki Ashida Abstract
More informationII. 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 informationLiterature 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 informationInternational 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 informationDesign 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 information3. What is hysteresis loss? Also mention a method to minimize the loss. (N11, N12)
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 informationMODELING 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 informationDEPARTMENT 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 informationHBRIDGE 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 PhaseShifted Series Resonant Converter Yan Lu, K. W. Eric Cheng, Senior Member, IEEE, and S.
More informationA Simple Sensorless Vector Control System for Variable
Paper A Simple Sensorless Vector Control System for Variable Speed Induction Motor Drives Student Member Hasan Zidan (Kyushu Institute of Technology) Nonmember Shuichi Fujii (Kyushu Institute of Technology)
More informationVECTOR 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 informationISSN: ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 2, Issue 3, May 2013
A StatcomControl 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 informationFundamentals 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 informationA 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 informationANNA UNIVERSITY :: CHENNAI MODEL QUESTION PAPER(VSEMESTER) B.E. ELECTRONICS AND COMMUNICATION ENGINEERING EC334  CONTROL SYSTEMS
ANNA UNIVERSITY :: CHENNAI  600 025 MODEL QUESTION PAPER(VSEMESTER) B.E. ELECTRONICS AND COMMUNICATION ENGINEERING EC334  CONTROL SYSTEMS Time: 3hrs Max Marks: 100 Answer all Questions PART  A (10
More informationUpgrading 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 informationDesign 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 informationAndrea 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 informationDCVoltage fluctuation elimination through a dccapacitor current control for PMSG under unbalanced grid voltage conditions
DCVoltage fluctuation elimination through a dccapacitor current control for PMSG under unbalanced grid voltage conditions P Kamalchandran 1, A.L.Kumarappan 2 PG Scholar, Sri Sairam Engineering College,
More informationElectronics and Instrumentation Name ENGR4220 Fall 1999 Section Modeling the Cantilever Beam Supplemental Info for Project 1.
Name ENGR40 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 informationInternational Journal of Scientific & Engineering Research, Volume 5, Issue 6, June ISSN
International Journal of Scientific & Engineering Research, Volume 5, Issue 6, June2014 64 Voltage Regulation of Buck Boost Converter Using Non Linear Current Control 1 D.Pazhanivelrajan, M.E. Power Electronics
More informationSIGNIFICANT 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 DualStage Actuators Raymond A. de Callafon, Ryozo Nagamune, and Roberto Horowitz Department of
More information