级联双电平逆变器馈电永磁同步电机的容错运行方法

Proceedings of The 7th International Power Electronics and Motion Control Conference Pub Date : 2012-06-02 DOI:10.1109/IPEMC.2012.6259047

Q. An, G. Wang, Li Sun

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引用次数: 17

摘要

提出了一种由级联两电平逆变器供电的开放式绕组永磁同步电动机的容错控制策略。当逆变器开关发生开路故障时，如果不改变控制策略，电机将停止运行。通过将拓扑结构重新配置为两相h桥逆变器，并将控制策略调整为两相矢量控制，使电机驱动系统在两相模式下运行。仿真和实验结果验证了该方案的有效性。

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A fault-tolerant operation method of PMSM fed by cascaded two-level inverters

A fault-tolerant control strategy of open-end winding permanent magnet synchronous motors fed by cascaded two-level inverters is proposed in this paper. When an open-circuit fault occurs on switches of the inverter, the motor will stop if the control strategy will not be changed. By means of reconfiguring the topology into two-phase H-bridge inverter, and adjusting the control strategy to two-phase vector control, the motor drive system can operate in two-phase mode. Simulation and experimental results validate the proposed scheme.

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Proceedings of The 7th International Power Electronics and Motion Control Conference

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