The fault tolerant flux switching permanent magnet (FTFSPM) machine has the advantages of high torque density and high reliability, therefore, it is suitable for the electric actuation system of all electric/more electric aircraft power system. The dynamic performance of the speed is affected by the PI parameters of the speed loop under the open-circuit condition in the traditional control strategy, hence, a torque impulse balance control is proposed in this paper. Based on the principle that the value of the torque impulse is balanced, the response time of the forward and backward vector can be calculated during the dynamic process. The speed convergence is obtained by accelerating and decelerating the speed only once, which will not be influenced by the PI parameters, thus the dynamic performance of the speed can be improved. Finally, the torque impulse balance control and the conventional direct torque control strategy are compared by simulation and experiment, and the results illustrate the validity and effectiveness of the torque impulse balance control under the one phase open-circuit fault operation.%永磁磁通切换容错(FTFSPM)电机具有高转矩密度和高可靠性的优点,适合应用在全电/多电飞机的电力作动系统中.传统的电机开路故障容错控制中,转速的动态性能会受到转速环 PI 参数的影响.因此该文研究了一种转矩冲量平衡控制算法,利用在动态变化前后转矩的冲量值保持不变,精确计算出动态过程中前进矢量和后退矢量的作用时间,只需一次减速、一次升速过程即可实现转速的收敛,不受 PI 参数的影响,优化转速的动态性能.通过仿真和实验实现电机在单相开路故障下的转矩冲量平衡控制,并与传统的直接转矩控制算法对比,验证了所提出算法的正确性和有效性.
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