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《Mechanical & Electrical Engineering Magazine》 2009-02
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Simulation and analysis of a low-speed drive system for permanent magnetic motors based on EKF

YU Jia-qi,YE Yun-yue,FAN Cheng-zhi(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)  
Aiming at controling large-torque and low-speed permanent magnetic motors,a kind of drive system based on extended Kaman filter(EKF) was introduced.The EKF was adopted to the estimate of motor speed,motor position and currents in d-q axes in the system.Besides the EKF,PI control was used in current loop and speed loop and the space vector pulse width modulation(SVPWM) was used as motor control strategy.The whole system was simulated using Matlab/Simulink and the data gained from the simulation was analyzed.Through the analysis of error and stablity in parameters,it is confirmed that the EKF is suitable for the drive system of the low-speed permanent magnetic motors.
【CateGory Index】: TM351
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