中文摘要：

为解决多相无轴承永磁薄片电机因某相发生故障无法正常工作的问题，提出了更具通用性的故障容错控制方法。该方法以相应的断路容错控制方法为基础。考虑到故障相对悬浮力与转矩的影响，重构了其它非故障相定子电流。满足了电机在故障状态下稳定运行所需的悬浮力与转矩，实现了该电机短路和断路故障状态的容错控制。同时，介绍了一种基于相电流反馈量的故障检测方法。最后以该电机同时发生断路、短路故障以及两相短路故障为例，通过仿真和实验验证了所提的容错控制策略的正确性。

英文摘要：

In order to solve the problem that fault of the phases would lead to multi-phase bearingless permanent magnet slice motors＇ abnormal operation, an improved fanlt-tolerant control strategy is presented based on the fault-tolerant control strategy with open-circuit phase（s）. Taking into account the part of levitation forces and torque which the faulty phases provide, the desired currents of the normal phases are reconfigured. And a general fault-tolerant controller for several possible fault modes is achieved. Meanwhile, a fault self-diagnosis method through the feedback of phase currents is introduced. The simulation and experimental results have verified the proposed fanlt-tolerant control strategy.