Optimal Fault Tolerant Control of Five-Phase Permanent Magnet Synchronous Motor Under One-Phase Open-Circuit Fault
Based on the background of electric vehicle and manufacture,a fault-tolerant control method is proposed for single phase open-circuit of fivephase permanent magnet synchronous motor(PMSM).Firstly the paper establish the mathematical model of the motor.According to the principle of invariant magnetomotive force and the two defined constraints,the current in the remaining four phases of the motor is deduced.The voltage used to control the motor is deduced through coordinate transformation and corresponding inverse transformation which is controlled by CPWM method to maintain the torque output before and after the fault.The strategy reduces pulsation of torque and improves reliability of the motor.Through the analysis of MATLAB simulation and experimental waveforms,the strategy can maintain the high dynamic performance of the motor under assumed fault and obtain consistent output torque.
PMSM Fault-tolerant control strategy Open-circuit fault
Song Jie
School of Electrical Information Engineering,Jiangsu University,Zhenjiang,China
国际会议
江苏镇江
英文
156-165
2019-09-20（万方平台首次上网日期，不代表论文的发表时间）