Fault-Tolerant Predictive Control for Five-Leg Dual-Mover Permanent-Magnet Motor Drives
Fault-Tolerant Predictive Control for Five-Leg Dual-Mover Permanent-Magnet Motor Drives
复制标题
DOI：
10.1109/tpel.2023.3236896
复制
发表时间：
2023-05
影响因子：
6.7
通讯作者：
Wei Wang;W. Tian;Zhixiang Lu;Z. Wang;W. Hua;Ming-Ming Cheng-Ming
中科院分区：
文献类型：
--
作者：
Wei Wang;W. Tian;Zhixiang Lu;Z. Wang;W. Hua;Ming-Ming Cheng-Ming
针对五桥臂双动子初级永磁直线电机系统在开路故障下的故障后运行，提出了一种容错预测控制方法。在故障后的操作中，一个相绕组和一个电压源逆变器（VSI）腿丢失。因此，有四个VSI腿和五个健康的相绕组从两个动子。特别是，一个VSI腿由两个移动器共享。FTPC的目标是减少计算负担，提高性能。首先，根据最小铜损原则，为两个动子分配参考电流。其次，两个全局最优的动子电压矢量（MVV）的两个动子的几何位置分别确定。第三，将两个全局最优MVV分别修改为两个局部最优MVV，其中考虑了公共支路的影响。最后，两个合成的电压矢量，以提高稳态性能。同时，FTPC可以减少60%的计算负担。实验结果验证了所提出的FTPC的有效性。
In this article, a fault-tolerant predictive control (FTPC) is proposed for the post-fault operation of five-leg dual-mover primary permanent-magnet linear motor drives with open circuit fault. In the post-fault operation, one phase winding and one voltage-source-inverter (VSI) leg are lost. As a result, there are four VSI legs and five healthy phase windings from two movers. Especially, one VSI leg is shared by two movers. The objects of FTPC are to reduce the computation burden and improve the performances. First, a minimum copper loss principle is designed to distribute the reference current for two movers. Second, two global optimal mover voltage vectors (MVVs) for two movers are respectively determined by geometrical location. Third, the two global optimal MVVs are respectively modified as two local optimal MVVs, in which the influence of the common leg is considered. Finally, two synthesized voltage vectors are obtained to improve the steady-state performances. Meanwhile, 60% of the computation burden can be reduced by using FTPC. The effectiveness of the proposed FTPC have been verified by experimental results.