d-q Equivalent Circuit Representation of Three-Phase Flux Reversal Machine with Full Pitch Winding
|
|
- Steven Mills
- 5 years ago
- Views:
Transcription
1 d-q Equivalent Circuit epresentation of Three-Phase Flux eversal Machine with Full Pitch Winding D. S. More, Hari Kalluru and B. G. Fernandes Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai , INDIA. dsmore@ee.iitb.ac.in khari@ee.iitb.ac.in bgf@ee.iitb.ac.in Abstract In this paper a d-q equivalent circuit for flux reversal machine (FM) is proposed. In order to improve the power density, full pitch winding is proposed. FM with this winding winding (FPFM) is compared with conventional concentrated stator pole winding FM (CSPFM). The output power of FPFM is twice that of CSPFM for the same machine dimensions, electrical and magnetic loadings. The results obtained using proposed d-q circuits are compared with those obtained from FEM analysis. Steady state and dynamic performance of FPFM and CSPFM is evaluated with proposed d-q circuits. I. INTODUCTION Single phase flux reversal machine (FM) was first introduced in 1997 by. P. Deodhar and et al for automobile application to replace the standard claw pole alternator [1]. It has numerious advantages such as simple construction, low inertia, high power density and is suitable for high speed application due to stationary permanent magnets and stator winding. This single phase configuration is fully explored as a high speed automotive generator. Three phase FM was introduced by C. Wang and et al in 1999 [2]. The design of the machine was optimized to ensure (i) high PM flux linkage in the winding, (ii) low cogging torque and PM weight. The basic machine configuration is 8 salient pole rotor and 6 pole stator with concentrated windings. Permanent Magnets are fixed to stator pole. Fig. 1 shows this machine configuration. FM for low-speed servo drive application was introduced by Ion Boldea and et al in 22 [3]. This low speed machine has 28 rotor poles and 12 stator poles with two permanent magnet pairs on each stator pole. This machine is designed for 128 rpm at 6 Hz. Using vector control high torque density with less than 3% torque pulsation was achieved. In order to reduce the cogging torque, rotor teeth pairing method has been proposed [4]. Attempts were made to reduce the leakage flux by providing flux barrier on the rotor poles at its edges [5]. Power density comparison of doubly salient permanent magnet electrical machines has been made. It is concluded that FM has higher power density in comparison with other machines in the same class [6]. Full pitch winding flux reversal machine (FPFM) was proposed to improve the power density of the machine as compared to conventional concentrated stator pole winding flux reversal machine (CSPFM) [7]. Fig. 1. Cross-section of 6/8 pole concentrated stator pole winding FM. In this paper, concept of fictitious Electrical Gear is proposed based on the flux pattern of the machine. The d- q equivalent circuits for FM based on this gear is proposed. In order to validate d-q equivalent circuits, two dimensional FEM analysis [8] is carried out on CSPFM and FPFM. Optimized machine dimensions are obtained from C. Wang and et al [2]. The important dimensions of FM are given in Table I for ready reference. Section II describes the flux linking to the stator winding of the machine and there from the concept of full pitch stator winding arrangement is discussed. Section III proposes the fictitious Electrical Gear concept applicable to FM. Section I proposes the d-q equivalent circuit for FM based on this fictitious gear. Section describes the FEM simulation results to validate the d-q equivalent circuit. Section I compares the power density of FPFM with CSPFM and finally conclusions are drawn. II. FU PITCH STATO WINDING FO FM Geometry of 6/8 pole three-phase FM (as per Table 1) and the flux distribution in this machine at no load is shown in Fig. 2. FM machine has 6 stator poles and 8 pole variable /8/$ IEEE 128 Authorized licensed use limited to: INDIAN INSTITUTE OF TECHNOOGY BOMBAY. Downloaded on December 4, 28 at 23:3 from IEEE Xplore. estrictions apply.
2 .6 Normal component of flux density in air gap 4th degree.4 Flux density ( Wb/m 2 ) Distance along the air gap (mm) Fig. 2. Flux distribution in 6/8 pole FM at no load Fig. 4. Normal component of armature flux density along the air gap with magnets are de-energized reluctance rotor. The normal component of flux density at the middle of stator pole along the periphery of the machine is shown in Fig. 3. The observation of this normal component of flux density plot reveals that the machine has two pole flux pattern. Phase flux linkage in FM is sinusoidal in nature and hence the induced voltage [2]. Considering a linear load the phase current is also sinusoidal. Normal component of armature reaction along the air gap at one instant of time is shown in Fig. 4. This flux pattern also reveals that machine has effective two pole flux pattern. In other words machine has two effective poles. FM has 6 slots and two pole flux pattern, hence electrical angle per slot is 6. CSPFM stator winding has a coil span of 6. Fundamental pitch factor of the stator winding is.5. As electrical angle between the slots is 6, full pitch winding.8.6 Normal component of flux density 4th degree is possible. The arrangement of this full pitch winding is shown in Fig. 5 and fundamental pitch factor of stator winding is unity. Hence, voltage induced in FPFM is twice that of CSPFM for the same number of turns. TABE I DIMENSIONS OF FM Sr. No. Description Symbol alue 1 Air gap (mm) g 1 2 Magnet thickness (mm) h pm 3 3 otor pole span angle β r pole span angle β s pole span (mm) τ ps otor pole span (mm) τ pr pole height (mm) h ps 15 8 otor pole height (mm) h pr 18 9 Outer dia. of rotor (mm) D i 72 1 Outer dia. of stator (mm) D o Number of turns /phase N ph Stack length (mm) l sk 86.4 Flux density ( Wb/m 2 ) Distance along the periphery of the machine at the middle of the stator pole ( mm) Fig. 3. Normal component of flux density along the periphery of machine at middle of the stator pole Fig. 5. Full pitch winding arrangement in FPFM 129 Authorized licensed use limited to: INDIAN INSTITUTE OF TECHNOOGY BOMBAY. Downloaded on December 4, 28 at 23:3 from IEEE Xplore. estrictions apply.
3 III. FICTITIOUS EECTICA GEA The frequency and speed relationship for FM is given by [3] n = 6 f n r (1) where, n = rotor speed in rpm. n r = number of rotor teeth (poles). f = frequency in Hz. The three-phase 6/8 pole FM has two effective poles, and hence flux pattern speed for supply frequency f Hz is given by n f =6 f (2) where, n f = flux pattern speed in rpm. Equations (1) and (2) reveal that rotor speed and flux pattern speed is different. The shaft speed is n r times less than flux pattern speed. In conventional machines, flux pattern speed and rotor speed is same. Pictorial representation of 6/8 pole FM motor is shown in Fig. 6 while a pictorial representation of 2 pole PMSM is shown in Fig. 7. The difference in speed between rotor and flux pattern speed is represented by a fictitious step-down gear and is called Electrical Gear. Electrical gear ratio (K) is defined as ratio of flux pattern speed to the shaft speed. Supply Frequency = f Hz Equivalent 2 pole PM otor Flux pattern speed = 6 x f Shaft speed n rpm TABE II GEA ATIO FO AIOUS FM CONFIGUATIONS Sr. No. Machine No.of Gear No. of Flux type magnets ratio pattern poles 1 6/8 pole /16 pole /14 pole /28 pole /4 pole The generalised equation for electrical gear ratio is given as K = n r (3) P eq /2 where, P eq = no. of flux pattern poles. Hence 6/8 pole FM can be analysed as 2 pole PMSM with a gear ratio of 8. Gear ratios for various FM configurations are given in Table II. It can be observed that no. of flux pattern poles in FM are 2 for 6 stator poles and 4 for 12 stator poles. I. d q EQUIAENT CICUITS FO FM Permanent magnet synchronous machine (PMSM) is analyzied with d-q equivalent circuits [9]. Transient and steady state behaviour of the PMSM is obtained with these equivalent circuits. Fig. 8 shows the d-q equivalent circuit for PMSM. Back EMF in FM is sinusoidal in nature. Self inductance and mutual inductance is almost constant with rotor position. It requires sinusoidal stator current to produce a constant torque. Hence d-q equivalent circuit can be used to analysis the steady state and transient behaviour of FM. d-q equivalent circuits of FM are derived from PMSM. The major difference between PMSM and FM is the relationship between speed and frequency. Three phase 6/8 pole FM can be considered as 2 pole PMSM with gear ratio (K) of 8 as shown in Fig. 6. Mathematical model of FM is similar to PMSM except Fictitious electrical n = (6 x f)/n r Gear i d e λ q ld Fig. 6. epresentation of 6/8 pole FM Supply Frequency = f Hz d md I f Flux pattern speed = 6 x f i q eλ d lq 2 pole PM otor Shaft speed n rpm n = 6 x f q mq Fig. 7. epresentation of 2 pole PMSM Fig. 8. d-q equivalent circuit of PMSM 121 Authorized licensed use limited to: INDIAN INSTITUTE OF TECHNOOGY BOMBAY. Downloaded on December 4, 28 at 23:3 from IEEE Xplore. estrictions apply.
4 i d i q d q K K e λ q eλ d ld md lq mq I f Phase flux linkages (Wb) FPFM CSPFM otor position (mech. degrees) Fig. 9. d-q equivalent circuits of FM Fig. 1. Phase flux linkage of FPFM and CSPFM the gear ratio (K). This gear ratio (K) is considered in the modeling of FM. The following assumptions are made while deriving these equivalent circuits [9]. Saturation in the machine is neglected. The induced EMF is sinusoidal. Eddy currents and hysteresis losses are negligible. There are no field current dynamics. There is no cage on the rotor. With these assumptions, The d-q equations in synchronously rotating reference frame of FM are v d = i d pλ d Kω e λ q (4) v q = i q pλ q Kω e λ d (5) The electrical torque T e is given by λ q = q i q (6) λ d = d i d λ af (7) T e = 3 2 P eq 2 K(λ af i q ( d q )i d i q ) (8) where, = stator resistance (Ohm). i d,iq = d and q axes stator currents (A). d, q = d and q axes inductances (H). p = derivative operator. λ d,λ q = d and q axes flux linkages (Wb). λ af = mutual flux linkages due to PM (Wb). ω e = rotor speed (rad/sec). FM machine considered for simulation has 6/8 pole structure and has equal d and q axes inductance [2]. Therefore torque equation reduces to T e = 3 2 P eq 2 Kλ af i q (9) where, P eq = no. of flux pattern poles of the machine= 2 K = 8 FM is controlled with constant flux upto base speed by maintaining i d equals to zero. Under this condition and at steady state, (4) to (7) are reduce to v d = Kω e λ q (1) v q = i q Kω e λ d (11) λ q = q i q (12) λ d = λ af (13) A. Steady State Torque Calculation FM machine design data is obtained from [2] and is shown in Table I. Physical dimensions of the machine and number of turns/phase are kept same in FPFM and CSPFM, only the winding arrangement is changed. FEM analysis is carried out to determine the variation of phase flux linkage of both machines with rotor position. This variation for both the machines without skewed rotor is shown in Fig.1. Flux linkage variation is shown for one rotor pole pitch (i.e. 45 mech.). Figure clearly shows that FPFM stator winding flux linkage is approximately twice that to the CSPFM. alues of λ af obtained from Fig. 1 for CSPFM and FPFM. They are.21 Weber and.41 Weber respectively. The steady state torque of both machines for I ph = 15 A is obtained from (9). The calculated values of steady state torques of CSPFM and FPFM are 5.34 Nm and 1.43 Nm respectively.. FEM SIMUATION TO AIDATE THE d q EQUIAENT CICUITS FEM motor simulations of CSPFM and FPFM for constant torque operation are carried out. The linking between the FEM winding regions to coil components of the circuit for FM is shown in Fig.11. B1 to B6 are winding regions; where as b1 to b6 are corresponding coil components in the circuit Authorized licensed use limited to: INDIAN INSTITUTE OF TECHNOOGY BOMBAY. Downloaded on December 4, 28 at 23:3 from IEEE Xplore. estrictions apply.
5 8 6 Phase current Phase voltage oltage () and current (A) Fig. 11. Coupling between FE regions and electrical circuit of FPFM. 6 TABE III FU OAD TOQUE (NM) OF CSPFM AND FPFM Parameter CSPFM FPFM Calculated using d-q circuits Obtained from FEM simulation , 2 and 3 are the end turn leakage inductance/phase. 1, 2 and 3 is stator winding resistance/phase. Motor is supplied from three phase sinusoidal current source I 1, I 2 and I 3. ector control is obtained with i d equal to zero and i q is maintained in phase with back EMF of the machine. Simulated steady state torque of both machines using Flux 2D software is shown in Fig.12. The average value of steady state torque of CSPFM and FPFM is 5.18 Nm and 1.14 Nm respectively. The average torque obtained using d-q equivalent circuits and that obtained from FEM simulation at full load is shown in Table III and it can be seen that there is a good agreement between these results. Steady state waveforms of voltage and rated current supplied to the CSPFM and FPFM at 1995 rpm obtained Time (seconds) x 1 3 Fig. 13. Phase voltage and phase current supplied to CSPFM. TABE I PAAMETES OF FM Sr. No. Parameter CSPFM FPFM 1 K ω e (rad/sec.) (ohm) d = q (mh) λ af (Wb) i q (A) using FEM simulation are shown in Fig. 13 and Fig. 14 respectively. Peak value of fundamental component of supply voltage obtained from FEM simulation study for CSPFM and FPFM is and respectively. Peak value of fundamental component of supply voltage is calculated from (1) to (13). The data required for these equations is given in Table I. The relationship between peak value of supply FPFM CSPFM 2 15 Phase voltage Phase current Torque (Nm) oltage () and Current (A) otor angle (mech. degrees) Time (seconds) x 1 3 Fig. 12. FEM simulation of full load torque of CSPFM and FPFM Fig. 14. Phase voltage and phase current supplied to FPFM Authorized licensed use limited to: INDIAN INSTITUTE OF TECHNOOGY BOMBAY. Downloaded on December 4, 28 at 23:3 from IEEE Xplore. estrictions apply.
6 TABE PEAK AUE OF SUPPY OTAGE () OF CSPFM AND FPFM Parameter CSPFM FPFM Calculated using d-q circuits Obtained from FEM simulation FEM Simulation d q equivalent circuit voltage s, v d and v q is given by s = vd 2 v2 q (14) Calculated peak value of supply voltage and value obtained from FEM simulation is shown in Table and they are in good agreement. Terminal voltage ( ) A. oltage egulation of CSPFM and FPFM from d q Equivalent Circuits FEM based simulation is carried on CSPFM and FPFM generator at 2 rpm to determine the voltage regulation. The proposed d-q equivalent cicuit is used to caculate the terminal voltage of the machine. The d-q equations for FM generator are given below. v dg = Kω e λ q i d pλ d i d (15) v qg = Kω e λ af i q pλ q i q Kω e d i d (16) λ q = q i q (17) λ d = λ af d i d (18) The data required to calculate the values of v d and v q are given in the Table I. Terminal voltage regulation obtained from FEM simulation and d-q equivalent circuit for CSPFM is shown in Fig. 15, while these plots for FPFM are shown in Fig oad current ( A ) Fig. 16. oltage regulation of FPFM I. POWE DENSITY COMPEISION OF CSPFM AND FPFM Physical dimensions and number of turns/phase are same in both machines, only winding arrangement is changed. Both machines have same rated current. FEM analysis at rated current is performed on both machines to determine the rated torque of both machines. Output torque of CSPFM and FPFM is 5.18 Nm and 1.14 Nm respectively. The torque constant of FM is given by K t = 3 2 P eq 2 Kλ af (19) d q equivalent circuit FEM simulation 12 CSPFM FPFM 24 1 Terminal voltage () Torque (Nm) oad current (A) Speed (rpm) Fig. 15. oltage regulation of CSPFM Fig. 17. Steady state speed torque capability curve of CSPFM and FPFM Authorized licensed use limited to: INDIAN INSTITUTE OF TECHNOOGY BOMBAY. Downloaded on December 4, 28 at 23:3 from IEEE Xplore. estrictions apply.
7 Torque constant mainly depends upon λ af. The values of λ af for both machines are shown in Table I. λ af for FPFM is twice as that of CSPFM and hence torque production capability of FPFM is twice as that of CSPFM in constant torque zone. Steady state speed-torque capability curve at same rated current for both machines is deduced and is shown in Fig. 17. Speed higher than base speed is obtained with flux weakening. In the flux weakening region supply voltage and input current are maintained at rated values. i d is increased with speed to reduce the flux in the machine. As i d increases i q has to decrease resulting in reduction in torque capability of the machine. Speed range in constant power region is higher for CSPFM as compared to FPFM. II. CONCUSION Full pitch winding concept for FM is introduced which increases the output power of FM approximately twice that of FM with concentrated stator pole winding. Concept of fictitious electrical gear is introduced. The d-q equivalent circuits for FM are proposed and same are validated with steady state FEM analysis. EFEENCES [1]. P. Deodhar, Savante Anderson, Ion Boldea and T. J. E. Miller, The flux reversal machine : A new doubly salient permanent magnet machine, IEEE Trans. Industry Applications., vol.33, No. 4, pp , July/August [2] C. Wang, S. A. Nasar, I. Boldea Three phase flux reversal machine (FM), IEE Trans. Electrical power application., vol. 146, No. 2, pp , March [3] Ion Boldea, Jichum Zhang, S. A. Nasar, Theoretical characterization of flux reversal machine in low speed servo drives-the pole PM configuration. IEEE Trans. Industry Applications., vol. 38, No. 6, pp , November/December 22. [4] Tae Heoung Kim, Sung Hong Won, Ki Bong and Ju ee, eduction in cogging torque in flux reversal machine by rotor teeth pairing IEEE Trans. on Magnetics. vol. 41, No. 1, pp , october 25. [5] Tae Heoung Kim and Ju ee A study of the design for the flux reversal machine, IEEE Trans. on Magnetics., vol. 4, No. 4, pp , July 24 [6] Jianzhong zhang, Ming Cheng, Wei Hua and Xiaoyong Zhu, New approach to power equation for comparison of doubly salient electrical machines, in in Proc.IEEE Industry Applications Annu. meeting., pp , 26. [7] D. S. More and B. G. Fernandes. Novel three phase flux reversal machine with full pitch winding, Proc. of International conference on power electronics (ICPE 27 ) Daegu, South Korea. pp , 27. [8] CEDAT, France Flux 2-D FEM Software,. [9] Pragasan Pillay and. Krishnan Modeling of permanent magnet motor drives. IEEE Trans. on Industrial Electronics.,vol. 35, No. 4, pp , November [1] C. Wang, I. Boldea, S. A. Nasar Characterization of three-phase flux reversal machine as an automotive generator., IEEE Trans. on Energy Conversion., vol. 16, No. 1, pp. 74-8, March, 21. [11] Miller T. J. E. Brushless Permanent Magnet and eluctance Motor Drives. Clarendon Press. Oxford [12] Gieras J. F. and M. Wing Permanent Magnet Motor Technology. Design and Applications. Marcel Dekker Inc Authorized licensed use limited to: INDIAN INSTITUTE OF TECHNOOGY BOMBAY. Downloaded on December 4, 28 at 23:3 from IEEE Xplore. estrictions apply.
Power density improvement of three phase flux reversal machine with distributed winding
Published in IET Electric Power Applications Received on 4th January 2009 Revised on 2nd April 2009 ISSN 1751-8660 Power density improvement of three phase flux reversal machine with distributed winding
More informationGenerators for wind power conversion
Generators for wind power conversion B. G. Fernandes Department of Electrical Engineering Indian Institute of Technology, Bombay Email : bgf@ee.iitb.ac.in Outline of The Talk Introduction Constant speed
More informationMathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors
Applied and Computational Mechanics 3 (2009) 331 338 Mathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors M. Mikhov a, a Faculty of Automatics,
More informationInternational Journal of Advance Engineering and Research Development SIMULATION OF FIELD ORIENTED CONTROL OF PERMANENT MAGNET SYNCHRONOUS MOTOR
Scientific Journal of Impact Factor(SJIF): 3.134 e-issn(o): 2348-4470 p-issn(p): 2348-6406 International Journal of Advance Engineering and Research Development Volume 2,Issue 4, April -2015 SIMULATION
More informationAnalytical Model for Sizing the Magnets of Permanent Magnet Synchronous Machines
Journal of Electrical Engineering 3 (2015) 134-141 doi: 10.17265/2328-2223/2015.03.004 D DAVID PUBLISHING Analytical Model for Sizing Magnets of Permanent Magnet Synchronous Machines George Todorov and
More informationDoubly salient reluctance machine or, as it is also called, switched reluctance machine. [Pyrhönen et al 2008]
Doubly salient reluctance machine or, as it is also called, switched reluctance machine [Pyrhönen et al 2008] Pros and contras of a switched reluctance machine Advantages Simple robust rotor with a small
More informationProceedings of the 6th WSEAS/IASME Int. Conf. on Electric Power Systems, High Voltages, Electric Machines, Tenerife, Spain, December 16-18,
Proceedings of the 6th WSEAS/IASME Int. Conf. on Electric Power Systems, High Voltages, Electric Machines, Tenerife, Spain, December 16-18, 2006 196 A Method for the Modeling and Analysis of Permanent
More informationDynamic Modeling of Surface Mounted Permanent Synchronous Motor for Servo motor application
797 Dynamic Modeling of Surface Mounted Permanent Synchronous Motor for Servo motor application Ritu Tak 1, Sudhir Y Kumar 2, B.S.Rajpurohit 3 1,2 Electrical Engineering, Mody University of Science & Technology,
More information1439. Numerical simulation of the magnetic field and electromagnetic vibration analysis of the AC permanent-magnet synchronous motor
1439. Numerical simulation of the magnetic field and electromagnetic vibration analysis of the AC permanent-magnet synchronous motor Bai-zhou Li 1, Yu Wang 2, Qi-chang Zhang 3 1, 2, 3 School of Mechanical
More informationHybrid Excited Vernier Machines with All Excitation Sources on the Stator for Electric Vehicles
Progress In Electromagnetics Research M, Vol. 6, 113 123, 16 Hybrid Excited Vernier Machines with All Excitation Sources on the Stator for Electric Vehicles Liang Xu, Guohai Liu, Wenxiang Zhao *, and Jinghua
More informationUNIT I INTRODUCTION Part A- Two marks questions
ROEVER COLLEGE OF ENGINEERING & TECHNOLOGY ELAMBALUR, PERAMBALUR-621220 DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING DESIGN OF ELECTRICAL MACHINES UNIT I INTRODUCTION 1. Define specific magnetic
More informationINDUCTION MOTOR MODEL AND PARAMETERS
APPENDIX C INDUCTION MOTOR MODEL AND PARAMETERS C.1 Dynamic Model of the Induction Motor in Stationary Reference Frame A three phase induction machine can be represented by an equivalent two phase machine
More informationROEVER COLLEGE OF ENGINEERING & TECHNOLOGY ELAMBALUR, PERAMBALUR DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING ELECTRICAL MACHINES I
ROEVER COLLEGE OF ENGINEERING & TECHNOLOGY ELAMBALUR, PERAMBALUR-621220 DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING ELECTRICAL MACHINES I Unit I Introduction 1. What are the three basic types
More informationMathematical Modelling of Permanent Magnet Synchronous Motor with Rotor Frame of Reference
Mathematical Modelling of Permanent Magnet Synchronous Motor with Rotor Frame of Reference Mukesh C Chauhan 1, Hitesh R Khunt 2 1 P.G Student (Electrical),2 Electrical Department, AITS, rajkot 1 mcchauhan1@aits.edu.in
More informationDr. N. Senthilnathan (HOD) G. Sabaresh (PG Scholar) Kongu Engineering College-Perundurai Dept. of EEE
Design and Optimization of 4.8kW Permanent MagNet Brushless Alternator for Automobile G. Sabaresh (PG Scholar) Kongu Engineering College-Perundurai Dept. of EEE sabareshgs@gmail.com 45 Dr. N. Senthilnathan
More informationLoss analysis of a 1 MW class HTS synchronous motor
Journal of Physics: Conference Series Loss analysis of a 1 MW class HTS synchronous motor To cite this article: S K Baik et al 2009 J. Phys.: Conf. Ser. 153 012003 View the article online for updates and
More informationAXIAL FLUX INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR WITH SINUSOIDALLY SHAPED MAGNETS
AXIAL FLUX INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR WITH SINUSOIDALLY SHAPED MAGNETS A. Parviainen, J. Pyrhönen, M. Niemelä Lappeenranta University of Technology, Department of Electrical Engineering
More informationEE 742 Chapter 3: Power System in the Steady State. Y. Baghzouz
EE 742 Chapter 3: Power System in the Steady State Y. Baghzouz Transmission Line Model Distributed Parameter Model: Terminal Voltage/Current Relations: Characteristic impedance: Propagation constant: π
More informationParameter Prediction and Modelling Methods for Traction Motor of Hybrid Electric Vehicle
Page 359 World Electric Vehicle Journal Vol. 3 - ISSN 232-6653 - 29 AVERE Parameter Prediction and Modelling Methods for Traction Motor of Hybrid Electric Vehicle Tao Sun, Soon-O Kwon, Geun-Ho Lee, Jung-Pyo
More informationFinite Element Analysis of Hybrid Excitation Axial Flux Machine for Electric Cars
223 Finite Element Analysis of Hybrid Excitation Axial Flux Machine for Electric Cars Pelizari, A. ademir.pelizari@usp.br- University of Sao Paulo Chabu, I.E. ichabu@pea.usp.br - University of Sao Paulo
More informationMODELING AND HIGH-PERFORMANCE CONTROL OF ELECTRIC MACHINES
MODELING AND HIGH-PERFORMANCE CONTROL OF ELECTRIC MACHINES JOHN CHIASSON IEEE PRESS ü t SERIES ON POWER ENGINEERING IEEE Press Series on Power Engineering Mohamed E. El-Hawary, Series Editor The Institute
More informationSensorless Control for High-Speed BLDC Motors With Low Inductance and Nonideal Back EMF
Sensorless Control for High-Speed BLDC Motors With Low Inductance and Nonideal Back EMF P.Suganya Assistant Professor, Department of EEE, Bharathiyar Institute of Engineering for Women Salem (DT). Abstract
More informationMATLAB SIMULINK Based DQ Modeling and Dynamic Characteristics of Three Phase Self Excited Induction Generator
628 Progress In Electromagnetics Research Symposium 2006, Cambridge, USA, March 26-29 MATLAB SIMULINK Based DQ Modeling and Dynamic Characteristics of Three Phase Self Excited Induction Generator A. Kishore,
More informationSensorless Field Oriented Control of Permanent Magnet Synchronous Motor
International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2015 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Sensorless
More information3 d Calculate the product of the motor constant and the pole flux KΦ in this operating point. 2 e Calculate the torque.
Exam Electrical Machines and Drives (ET4117) 11 November 011 from 14.00 to 17.00. This exam consists of 5 problems on 4 pages. Page 5 can be used to answer problem 4 question b. The number before a question
More informationRegular paper. Design and FE Analysis of BLDC Motor for Electro- Mechanical Actuator
P.Srinivas* J. Electrical Systems 11-1 (2015): 76-88 Regular paper Design and FE Analysis of BLDC Motor for Electro- Mechanical Actuator JES Journal of Electrical Systems This paper presents the design
More informationGuangjin Li, Javier Ojeda, Emmanuel Hoang, Mohamed Gabsi, Cederic Balpe. To cite this version:
Design of Double Salient Interior Permanent Magnet Machine Based on Mutually Coupled Reluctance Machine for Increasing the Torque Density and Flux-Weakening Capability Guangjin Li, Javier Ojeda, Emmanuel
More informationMassachusetts Institute of Technology Department of Electrical Engineering and Computer Science Electric Machines
Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 6.685 Electric Machines Problem Set 10 Issued November 11, 2013 Due November 20, 2013 Problem 1: Permanent
More informationThe Nottingham eprints service makes this work by researchers of the University of Nottingham available open access under the following conditions.
Mezani, Smail and Hamiti, Tahar and Belguerras, Lamia and Lubin, Thierry and Gerada, Christopher (215) Computation of wound rotor induction machines based on coupled finite elements and circuit equation
More informationCitation Ieee Transactions On Magnetics, 2001, v. 37 n. 4 II, p
Title Design and analysis of a new doubly salient permanent magnet motor Author(s) Cheng, M; Chau, KT; Chan, CC Citation Ieee Transactions On Magnetics, 2001, v. 37 n. 4 II, p. 3012-3020 Issued Date 2001
More informationStep Motor Modeling. Step Motor Modeling K. Craig 1
Step Motor Modeling Step Motor Modeling K. Craig 1 Stepper Motor Models Under steady operation at low speeds, we usually do not need to differentiate between VR motors and PM motors (a hybrid motor is
More informationThis is a repository copy of Influence of skew and cross-coupling on flux-weakening performance of permanent-magnet brushless AC machines.
This is a repository copy of Influence of skew and cross-coupling on flux-weakening performance of permanent-magnet brushless AC machines. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/8610/
More informationDESIGN AND ANALYSIS OF AXIAL-FLUX CORELESS PERMANENT MAGNET DISK GENERATOR
DESIGN AND ANALYSIS OF AXIAL-FLUX CORELESS PERMANENT MAGNET DISK GENERATOR Łukasz DR ZIKOWSKI Włodzimierz KOCZARA Institute of Control and Industrial Electronics Warsaw University of Technology, Warsaw,
More informationSynchronous Machines
Synchronous Machines Synchronous Machines n 1 Φ f n 1 Φ f I f I f I f damper (run-up) winding Stator: similar to induction (asynchronous) machine ( 3 phase windings that forms a rotational circular magnetic
More informationModeling and Design Optimization of Permanent Magnet Linear Synchronous Motor with Halbach Array
Modeling and Design Optimization of Permanent Magnet Linear Synchronous Motor with Halbach Array N. Roshandel Tavana, and A. Shoulaie nroshandel@ee.iust.ir, and shoulaie@ee.iust.ac.ir Department of Electrical
More informationPerformance analysis of variable speed multiphase induction motor with pole phase modulation
ARCHIVES OF ELECTRICAL ENGINEERING VOL. 65(3), pp. 425-436 (2016) DOI 10.1515/aee-2016-0031 Performance analysis of variable speed multiphase induction motor with pole phase modulation HUIJUAN LIU, JUN
More informationSTEADY STATE AND TRANSIENT ANALYSIS OF INDUCTION MOTOR DRIVING A PUMP LOAD
Nigerian Journal of Technology, Vol. 22, No. 1, March 2003, Okoro 46 STEADY STATE AND TRANSIENT ANALYSIS OF INDUCTION MOTOR DRIVING A PUMP LOAD O. I. Okoro Department of Electrical Engineering, University
More informationDesign and Characteristic Analysis of LSM for High Speed Train System using Magnetic Equivalent Circuit
IJR International Journal of Railway Vol. 3, No. 1 / March 2010, pp. 14-18 The Korean Society for Railway Design and Characteristic Analysis of LSM for High Speed Train System using Magnetic Equivalent
More informationFlux: Examples of Devices
Flux: Examples of Devices xxx Philippe Wendling philippe.wendling@magsoft-flux.com Create, Design, Engineer! www.magsoft-flux.com www.cedrat.com Solenoid 2 1 The Domain Axisymmetry Open Boundary 3 Mesh
More informationModelling of Closed Loop Speed Control for Pmsm Drive
Modelling of Closed Loop Speed Control for Pmsm Drive Vikram S. Sathe, Shankar S. Vanamane M. Tech Student, Department of Electrical Engg, Walchand College of Engineering, Sangli. Associate Prof, Department
More informationJRE SCHOOL OF Engineering
JRE SCHOOL OF Engineering Class Test-1 Examinations September 2014 Subject Name Electromechanical Energy Conversion-II Subject Code EEE -501 Roll No. of Student Max Marks 30 Marks Max Duration 1 hour Date
More informationLesson 17: Synchronous Machines
Lesson 17: Synchronous Machines ET 332b Ac Motors, Generators and Power Systems Lesson 17_et332b.pptx 1 Learning Objectives After this presentation you will be able to: Explain how synchronous machines
More informationAnalysis of Idle Power and Iron Loss Reduction in an Interior PM Automotive Alternator
Analysis of Idle Power and Iron Loss Reduction in an Interior PM Automotive Alternator by Vlatka Životić-Kukolj M.Eng.Sci. (Research) Electrical and Electronic Engineering, Adelaide University, 2001 B.Eng
More informationProposal of short armature core double-sided transverse flux type linear synchronous motor
Proposal of short armature core double-sided transverse flux type linear synchronous motor Shin Jung-Seob a, Takafumi Koseki a and Kim Houng-Joong b a The University of Tokyo, Engineering Building #2 12F,7-3-1
More informationKeywords: Electric Machines, Rotating Machinery, Stator faults, Fault tolerant control, Field Weakening, Anisotropy, Dual rotor, 3D modeling
Analysis of Electromagnetic Behavior of Permanent Magnetized Electrical Machines in Fault Modes M. U. Hassan 1, R. Nilssen 1, A. Røkke 2 1. Department of Electrical Power Engineering, Norwegian University
More informationPARAMETER SENSITIVITY ANALYSIS OF AN INDUCTION MOTOR
HUNGARIAN JOURNAL OF INDUSTRIAL CHEMISTRY VESZPRÉM Vol. 39(1) pp. 157-161 (2011) PARAMETER SENSITIVITY ANALYSIS OF AN INDUCTION MOTOR P. HATOS, A. FODOR, A. MAGYAR University of Pannonia, Department of
More informationTutorial Sheet Fig. Q1
Tutorial Sheet - 04 1. The magnetic circuit shown in Fig. Q1 has dimensions A c = A g = 9 cm 2, g = 0.050 cm, l c = 30 cm, and N = 500 turns. Assume the value of the relative permeability,µ r = 70,000
More informationUnity Power Factor Control of Permanent Magnet Motor Drive System
Unity Power Factor Control of Permanent Magnet Motor Drive System M. F. Moussa* A. Helal Y. Gaber H. A. Youssef (Arab Academy for science and technology) Alexandria University *mona.moussa@yahoo.com Abstract-The
More informationInductance Testing According to the New IEEE Std 1812 Application and Possible Extensions for IPM Machines
Inductance Testing According to the New IEEE Std 1812 Application and Possible Extensions for IPM Machines Vandana Rallabandi Narges Taran Dan M. Ionel Department of Electrical and Computer Engineering
More informationControl of Wind Turbine Generators. James Cale Guest Lecturer EE 566, Fall Semester 2014 Colorado State University
Control of Wind Turbine Generators James Cale Guest Lecturer EE 566, Fall Semester 2014 Colorado State University Review from Day 1 Review Last time, we started with basic concepts from physics such as
More informationDesign, analysis and fabrication of linear permanent magnet synchronous machine
Design, analysis and fabrication of linear permanent magnet synchronous machine Monojit Seal Dept. of Electrical Engineering, IIEST, Shibpur, Howrah - 711103 W.B., India. email: seal.monojit@gmail.com
More informationSynchronous Machines
Synchronous Machines Synchronous generators or alternators are used to convert mechanical power derived from steam, gas, or hydraulic-turbine to ac electric power Synchronous generators are the primary
More informationWater-Cooled Direct Drive Permanent Magnet Motor Design in Consideration of its Efficiency and Structural Strength
Journal of Magnetics 18(2), 125-129 (2013) ISSN (Print) 1226-1750 ISSN (Online) 2233-6656 http://dx.doi.org/10.4283/jmag.2013.18.2.125 Water-Cooled Direct Drive Permanent Magnet Motor Design in Consideration
More informationThird harmonic current injection into highly saturated multi-phase machines
ARCHIVES OF ELECTRICAL ENGINEERING VOL. 66(1), pp. 179-187 (017) DOI 10.1515/aee-017-001 Third harmonic current injection into highly saturated multi-phase machines FELIX KLUTE, TORBEN JONSKY Ostermeyerstraße
More informationRevision Guide for Chapter 15
Revision Guide for Chapter 15 Contents tudent s Checklist Revision otes Transformer... 4 Electromagnetic induction... 4 Generator... 5 Electric motor... 6 Magnetic field... 8 Magnetic flux... 9 Force on
More informationMODELING surface-mounted permanent-magnet (PM)
Modeling of Axial Flux Permanent-Magnet Machines Asko Parviainen, Markku Niemelä, and Juha Pyrhönen Abstract In modeling axial field machines, three dimensional (3-D) finite-element method (FEM) models
More informationDynamic d-q Model of Induction Motor Using Simulink
Dynamic d-q Model of Induction Motor Using Simulink Anand Bellure #1, Dr. M.S Aspalli #2, #1,2 Electrical and Electronics Engineering Department, Poojya Doddappa Appa College of Engineering, Gulbarga,
More informationLINEAR MOTORS produce a direct thrust force without
5436 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 60, NO. 12, DECEMBER 2013 Investigation and General Design Principle of a New Series of Complementary and Modular Linear FSPM Motors Ruiwu Cao, Student
More informationUnified Torque Expressions of AC Machines. Qian Wu
Unified Torque Expressions of AC Machines Qian Wu Outline 1. Review of torque calculation methods. 2. Interaction between two magnetic fields. 3. Unified torque expression for AC machines. Permanent Magnet
More informationON THE PARAMETERS COMPUTATION OF A SINGLE SIDED TRANSVERSE FLUX MOTOR
ON THE PARAMETERS COMPUTATION OF A SINGLE SIDED TRANSVERSE FLUX MOTOR Henneberger, G. 1 Viorel, I. A. Blissenbach, R. 1 Popan, A.D. 1 Department of Electrical Machines, RWTH Aachen, Schinkelstrasse 4,
More informationAnalytical Calculation of Air Gap Magnetic Field Distribution in Vernier Motor
IEEE PEDS 017, Honolulu, USA 1-15 June 015 Analytical Calculation of Air Gap Magnetic Field Distribution in Vernier Motor Hyoseok Shi, Noboru Niguchi, and Katsuhiro Hirata Department of Adaptive Machine
More informationIEEE Transactions on Applied Superconductivity. Copyright IEEE.
Title Loss analysis of permanent magnet hybrid brushless machines with and without HTS field windings Author(s) Liu, C; Chau, KT; Li, W Citation The 21st International Conference on Magnet Technology,
More informationTorque Performance and Permanent Magnet Arrangement for Interior Permanent Magnet Synchronous Motor
Extended Summary pp.954 960 Torque Performance and Permanent Magnet Arrangement for Interior Permanent Magnet Synchronous Motor Naohisa Matsumoto Student Member (Osaka Prefecture University, matumoto@eis.osakafu-u.ac.jp)
More informationAnalytical Model for Permanent Magnet Motors With Surface Mounted Magnets
386 IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 18, NO. 3, SEPTEMBER 2003 Analytical Model for Permanent Magnet Motors With Surface Mounted Magnets Amuliu Bogdan Proca, Member, IEEE, Ali Keyhani, Fellow,
More informationElectrical Machines and Energy Systems: Operating Principles (Part 2) SYED A Rizvi
Electrical Machines and Energy Systems: Operating Principles (Part 2) SYED A Rizvi AC Machines Operating Principles: Synchronous Motor In synchronous motors, the stator of the motor has a rotating magnetic
More informationUnity Power Factor Control of Permanent Magnet Motor Drive System
Unity Power Factor Control of Permanent Magnet Motor Drive System M. F. Moussa* A. Helal Y. Gaber H. A. Youssef (Arab Academy for science and technology) Alexandria University *mona.moussa@yahoo.com Abstract-The
More informationElectrical Machines and Energy Systems: Operating Principles (Part 1) SYED A Rizvi
Electrical Machines and Energy Systems: Operating Principles (Part 1) SYED A Rizvi AC Machines Operating Principles: Rotating Magnetic Field The key to the functioning of AC machines is the rotating magnetic
More informationReluctance Synchronous Machine with a Particular Cageless Segmental Rotor
Reluctance Synchronous Machine with a Particular Cageless Segmental Rotor I.A. Viorel 1, I. Husain 2, Ioana Chişu 1, H.C. Hedeşiu 1, G. Madescu 3 and L. Szabó 1 1 Dept. of Electrical Machines, Technical
More informationConcept Design and Performance Analysis of HTS Synchronous Motor for Ship Propulsion. Jin Zou, Di Hu, Mark Ainslie
Concept Design and Performance Analysis of HTS Synchronous Motor for Ship Propulsion Jin Zou, Di Hu, Mark Ainslie Bulk Superconductivity Group, Engineering Department, University of Cambridge, CB2 1PZ,
More informationTorque Ripple Reduction Using Torque Compensation Effect of an Asymmetric Rotor Design in IPM Motor
Journal of Magnetics 22(2), 266-274 (2017) ISSN (Print) 1226-1750 ISSN (Online) 2233-6656 https://doi.org/10.4283/jmag.2017.22.2.266 Torque Ripple Reduction Using Torque Compensation Effect of an Asymmetric
More informationIntroduction to Synchronous. Machines. Kevin Gaughan
Introduction to Synchronous Machines Kevin Gaughan The Synchronous Machine An AC machine (generator or motor) with a stator winding (usually 3 phase) generating a rotating magnetic field and a rotor carrying
More informationAnalytic signal space partitioning and symbolic dynamic filtering for degradation monitoring of electric motors
SIViP (2010) 4:399 403 DOI 10.1007/s11760-009-0133-4 ORIGINAL PAPER Analytic signal space partitioning and symbolic dynamic filtering for degradation monitoring of electric motors Subhadeep Chakraborty
More informationELECTRICALMACHINES-I QUESTUION BANK
ELECTRICALMACHINES-I QUESTUION BANK UNIT-I INTRODUCTION OF MAGNETIC MATERIAL PART A 1. What are the three basic rotating Electric machines? 2. Name the three materials used in machine manufacture. 3. What
More informationComputation of Wound Rotor Induction Machines Based on Coupled Finite Elements and Circuit Equation under a First Space Harmonic Approximation
Computation of Wound Rotor Induction Machines Based on Coupled Finite Elements and Circuit Equation under a First Space Harmonic Approximation Smail Mezani, Tahar Hamiti, Lamia Belguerras, Thierry Lubin,
More informationEqual Pitch and Unequal Pitch:
Equal Pitch and Unequal Pitch: Equal-Pitch Multiple-Stack Stepper: For each rotor stack, there is a toothed stator segment around it, whose pitch angle is identical to that of the rotor (θs = θr). A stator
More information1. Introduction. (Received 21 December 2012; accepted 28 February 2013)
940. Magnetic equivalent circuit model of surface type fractional-slot permanent magnet synchronous generator Y. Oner, I. enol,. Bekiroglu, E. Aycicek Y. Oner 1, I. enol 2,. Bekiroglu 3, E. Aycicek 4 Yıldız
More informationPRINCIPLE OF DESIGN OF FOUR PHASE LOW POWER SWITCHED RELUCTANCE MACHINE AIMED TO THE MAXIMUM TORQUE PRODUCTION
Journal of ELECTRICAL ENGINEERING, VOL. 55, NO. 5-6, 24, 138 143 PRINCIPLE OF DESIGN OF FOUR PHASE LOW POWER SWITCHED RELUCTANCE MACHINE AIMED TO THE MAXIMUM TORQUE PRODUCTION Martin Lipták This paper
More informationMechanical Engineering Journal
Bulletin of the JSME Mechanical Engineering Journal Vol.4, No.5, 2017 Modeling and control design simulations of a linear flux-switching permanent-magnet-levitated motor Rafal P. JASTRZEBSKI*, Pekko JAATINEN*
More informationDevelopment of axial flux HTS induction motors
Available online at www.sciencedirect.com Procedia Engineering 35 (01 ) 4 13 International Meeting of Electrical Engineering Research ENIINVIE-01 Development of axial flux HTS induction motors A. González-Parada
More informationMagnetic Saturation and Iron Loss Influence on Max Torque per Ampere Current Vector Variation of Synchronous Reluctance Machine
EVS28 KINTEX, Korea, May 3-6, 215 Magnetic Saturation and Iron Loss Influence on Max Torque per Ampere Current Vector Variation of Synchronous Reluctance Machine Huai-Cong Liu 1, In-Gun Kim 1, Ju lee 1
More informationCogging Torque Reduction in Surface-mounted Permanent Magnet Synchronous Motor by Axial Pole Pairing
EVS28 KINTEX, Korea, May 3-6, 215 Cogging Torque Reduction in Surface-mounted Permanent Magnet Synchronous Motor by Axial Pole Pairing Soo-Gyung Lee 1, Kyung-Tae Jung 1, Seung-Hee Chai 1, and Jung-Pyo
More informationDESIGN OF ELECTRICAL APPARATUS SOLVED PROBLEMS
DESIGN OF ELECTRICAL APPARATUS SOLVED PROBLEMS 1. A 350 KW, 500V, 450rpm, 6-pole, dc generator is built with an armature diameter of 0.87m and core length of 0.32m. The lap wound armature has 660 conductors.
More informationLevitation and Thrust Forces Analysis of Hybrid-Excited Linear Synchronous Motor for Magnetically Levitated Vehicle
564 Journal of Electrical Engineering & Technology Vol. 7, No. 4, pp. 564~569, 2012 http://dx.doi.org/10.5370/jeet.2012.7.4.564 Levitation and Thrust Forces Analysis of Hybrid-Excited Linear Synchronous
More informationChapter 4. Synchronous Generators. Basic Topology
Basic Topology Chapter 4 ynchronous Generators In stator, a three-phase winding similar to the one described in chapter 4. ince the main voltage is induced in this winding, it is also called armature winding.
More informationDirect Flux Vector Control Of Induction Motor Drives With Maximum Efficiency Per Torque
Direct Flux Vector Control Of Induction Motor Drives With Maximum Efficiency Per Torque S. Rajesh Babu 1, S. Sridhar 2 1 PG Scholar, Dept. Of Electrical & Electronics Engineering, JNTUACEA, Anantapuramu,
More informationTHE INFLUENCE OF THE ROTOR POLE SHAPE ON THE STATIC EFICIENCY OF THE SWITCHED RELUCTANCE MOTOR
7 th INTERNATIONAL MULTIDISCIPLINARY CONFERENCE Baia Mare, Romania, May 17-18, 27 ISSN-1224-3264 THE INFLUENCE OF THE ROTOR POLE SHAPE ON THE STATIC EFICIENCY OF THE SWITCHED RELUCTANCE MOTOR Liviu Neamţ,
More informationOptimum design of a double-sided permanent magnet linear synchronous motor to minimize the detent force
Energy Equip. Sys./ Vol. 5/No1/March 2017/ 1-11 Energy Equipment and Systems http://energyequipsys.ut.ac.ir www.energyequipsys.com Optimum design of a double-sided permanent magnet linear synchronous motor
More informationTutorial 1 (EMD) Rotary field winding
Tutorial 1 (EMD) Rotary field winding The unchorded two-layer three-phase winding of a small synchronous fan drive for a computer has the following parameters: number of slots per pole and phase q = 1,
More informationCogging Torque Reduction in Permanent-Magnet Brushless Generators for Small Wind Turbines
Journal of Magnetics 20(2), 176-185 (2015) ISSN (Print) 1226-1750 ISSN (Online) 2233-6656 http://dx.doi.org/10.4283/jmag.2015.20.2.176 Cogging Torque Reduction in Permanent-Magnet Brushless Generators
More informationDesign Optimization and Development of Linear Brushless Permanent Magnet Motor
International Journal of Control, Automation, and Systems Vol. 1, No. 3, September 3 351 Design Optimization and Development of Linear Brushless Permanent Magnet Motor Myung-Jin Chung and Dae-Gab Gweon
More informationDesign and Analysis of 42-V Permanent-Magnet Generator for Automotive Applications
IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 18, NO. 1, MARCH 2003 107 Design and Analysis of 42-V Permanent-Magnet Generator for Automotive Applications Mihai Comanescu, Student Member, IEEE, Ali Keyhani,
More informationDesign and analysis of Axial Flux Permanent Magnet Generator for Direct-Driven Wind Turbines
Design and analysis of Axial Flux Permanent Magnet Generator for Direct-Driven Wind Turbines Sung-An Kim, Jian Li, Da-Woon Choi, Yun-Hyun Cho Dep. of Electrical Engineering 37, Nakdongdae-ro, 55beon-gil,
More informationA 2-Dimensional Finite-Element Method for Transient Magnetic Field Computation Taking Into Account Parasitic Capacitive Effects W. N. Fu and S. L.
This article has been accepted for inclusion in a future issue of this journal Content is final as presented, with the exception of pagination IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 1 A 2-Dimensional
More informationIndependent Control of Speed and Torque in a Vector Controlled Induction Motor Drive using Predictive Current Controller and SVPWM
Independent Control of Speed and Torque in a Vector Controlled Induction Motor Drive using Predictive Current Controller and SVPWM Vandana Peethambaran 1, Dr.R.Sankaran 2 Assistant Professor, Dept. of
More informationDetermination of a Synchronous Generator Characteristics via Finite Element Analysis
SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol. 2, No. 2, November 25, 157-162 Determination of a Synchronous Generator Characteristics via Finite Element Analysis Zlatko Kolondzovski 1, Lidija Petkovska
More informationRESEARCH ON REDUCING COGGING TORQUE IN PERMANENT MAGNET SYNCHRONOUS GENERATORS
U.P.B. Sci. Bull., Series C, Vol. 77, Iss. 3, 2015 ISSN 2286-3540 RESEARCH ON REDUCING COGGING TORQUE IN PERMANENT MAGNET SYNCHRONOUS GENERATORS Ion TRIFU 1 This paper presents different cogging torque
More informationMotor Info on the WWW Motorola Motors DC motor» /MOTORDCTUT.
Motor Info on the WWW Motorola Motors DC motor» http://www.freescale.com/files/microcontrollers/doc/train_ref_material /MOTORDCTUT.html Brushless DC motor» http://www.freescale.com/files/microcontrollers/doc/train_ref_material
More informationDynamic Performance Analysis of Permanent Magnet Hybrid Stepper Motor by Transfer Function Model for Different Design Topologies
International Journal of Electrical and Computer Engineering (IJECE) Vol.2, No.2, April 2012, pp. 191~196 ISSN: 2088-8708 191 Dynamic Performance Analysis of Permanent Magnet Hybrid Stepper Motor by Transfer
More informationEquivalent Circuits with Multiple Damper Windings (e.g. Round rotor Machines)
Equivalent Circuits with Multiple Damper Windings (e.g. Round rotor Machines) d axis: L fd L F - M R fd F L 1d L D - M R 1d D R fd R F e fd e F R 1d R D Subscript Notations: ( ) fd ~ field winding quantities
More informationDynamics of the synchronous machine
ELEC0047 - Power system dynamics, control and stability Dynamics of the synchronous machine Thierry Van Cutsem t.vancutsem@ulg.ac.be www.montefiore.ulg.ac.be/~vct October 2018 1 / 38 Time constants and
More information