开路故障下永磁容错轮缘推进电机直接转矩控制策略  

Direct torque control strategy of permanent magnet fault-tolerant rim driven motor under open circuit fault

作　　者：季彦名 赵宏革 朱景伟 JI Yan-ming;ZHAO Hong-ge;ZHU Jing-wei(Marine Electrical Engineering College,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]大连海事大学船舶电气工程学院

出　　处：《大连海事大学学报》2019年第4期110-116,共7页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(51777024);中央高校基本科研业务费专项资金资助项目(3132019015)

摘　　要：针对轮缘推进电机的结构及特点,将六相永磁容错电机应用于轮缘推进系统中,对六相永磁容错轮缘推进电机直接转矩控制策略进行深入研究.借鉴三相永磁容错电机SVPWM控制策略,对电机的每一相进行磁链容错补偿,实现单相开路故障下六相永磁容错轮缘推进电机的直接转矩控制.同时,通过MATLAB/Simulink进行仿真,并与六相永磁容错电机bangbang控制策略进行对比分析,验证了基于SVPWM的直接转矩控制策略在开路故障下作为六相永磁容错电机容错控制方法的可行性及其独特的优越性.Aiming at the structure and characteristics of the rim driven motor(RDM),the six-phase fault-tolerant permanent magnet motor(FTPMM)was applied in the rim driven system to deeply study the direct torque control(DTC)strategy of the six-phase permanent magnet fault-tolerant rim propulsion motor.By referring the SVPWM control strategy of three-phase permanent magnet fault-tolerant motor,the flux linkage fault-tolerant compensation was carried out for each phase of the motor to realize the direct torque control of six-phase permanent magnet fault-tolerant wheel-rim propulsion motor under single-phase open-circuit fault.At the same time,the simulation was carried out by using MATLAB/Simulink to compare with the bangbang control strategy of six-phase permanent magnet fault-tolerant motor,which verified the feasibility and unique superiority of direct torque control strategy based on SVPWM as the fault-tolerant control method of six-phase permanent magnet fault-tolerant motor under open circuit fault.

关 键 词：永磁容错轮缘推进电机 容错控制 直接转矩 SVPWM 

分 类 号：N945[自然科学总论—系统科学] TM34[电气工程—电机]