In this paper, a novel converter with the minimum number of power switches is comparatively investigated with an asymmetric half bridge (AHB) converter by individually applying them to a six-phase switched reluctance motor (SRM). To begin with, topology, operation principle, and electrical equations are analyzed based on an SRM with double-phase excitation. Compared with AHB converter, the number of power switches is reduced to half and no additional devices are added. Besides, every switch is shared by two adjacent phases and works in turn. Steady-state, transient, and fault tolerance performances are discussed and compared by the means of simulations and experiments. The results validate that the novel converter is able to provide a higher output power, a less torque ripple, and a faster dynamic response, but the fault tolerance ability is inferior to the AHB converter.

中文翻译：

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用于六相开关磁阻电机的新型最少开关功率变换器的性能评估


本文将一种具有最少功率开关数量的新型变换器与非对称半桥（AHB）变换器分别应用于六相开关磁阻电机（SRM）进行比较研究。首先，基于双相励磁 SRM 进行拓扑结构、工作原理和电气方程分析。与AHB转换器相比，功率开关数量减少一半，且无需添加额外器件。另外，每个开关由相邻两相共用，轮流工作。通过仿真和实验的方式讨论和比较了稳态、瞬态和容错性能。结果验证了新型变换器能够提供更高的输出功率、更小的转矩脉动和更快的动态响应，但容错能力不如AHB变换器。