五相永磁同步电机一相断路容错策略r推导及仿真验证

摘要

针对多相电机的开路故障时的容错运行控制策略及其验证问题,对五相永磁电机一相定子绕组开路的容错策略、五相电机Matlab仿真建模及容错策略的仿真验证进行了研究.根据定子绕组磁动势不变的原则,利用基本的三角函数变换,详细推导了五相永磁电机一相开路时的电流容错策略,利用旋转坐标系下的五相永磁电机数学模型,在Matlab中建立了电流源激励的五相永磁电机模型,对一相开路时的电流容错策略进行了仿真验证.研究结果表明,五相永磁电机开路故障时电流容错控制策略的推导方法和结论正确,在Matlab中建立电流源激励的五相永磁电机模型,是验证五相电机电流容错策略的简单、有效的方法.%Aiming at the problems of the fault-tolerant operation for open circuit failure of multiphase motor control strategy and its validation, the fault tolerant strategy of five phase permanent magnet motor with one stator winding was opened,a model of five phases motor which was built up in the matlab and the validation of current fault tolerant strategy were studied. Based on the principle of magnetomotive force which was constant, using the basic trigonometric functions,the fault tolerant strategy of five phasess permanent magnet was deduced in details when a winding was opened. A model of permanent magnet motor was established in the Matlab in order to verify the correctness of the current fault tolerant strategy. The results show that the fault tolerant strategy is corrent, and using the model which is builded up in the Matlab, the cur-rent fault-tolerant strategies of multiphase motors can be verifyied easily.