The permanent-magnet Vernier (PMV) machine has been welcomed for direct-drive applications recently. Also, the fault tolerance is critical for special machine design in hostile conditions. This article proposes an efficient PMV machine with the modular winding configuration, which takes the fault-tolerant capability into account, especially the open-circuit fault. With the modular winding design, the better isolation between phases and modules can be obtained instead of dividing the stator core into segments. Meanwhile, the high efficiency needs to be guaranteed under both normal and partial-module operations. Therefore, the machine design, basic characteristics, and the fault-tolerant operation are performed and verified. Finally, the efficiency performances under normal and modular operations are analyzed and compared, which demonstrates the validity of the proposed idea and relevant considerations.

中文翻译：

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高效永磁游标机的模块化设计

永磁游标 (PMV) 电机最近受到直接驱动应用的欢迎。此外，容错对于恶劣条件下的特殊机器设计至关重要。本文提出了一种具有模块化绕组配置的高效PMV电机，它考虑了容错能力，尤其是开路故障。采用模块化绕组设计，无需将定子铁芯分段，即可获得更好的相位和模块之间的隔离。同时，在正常和部分模块操作下都需要保证高效率。因此，执行并验证了机器设计、基本特性和容错操作。最后，对正常运行和模块化运行下的效率性能进行了分析和比较，