Overview of Post-Fault Operation Strategies for Open-End Winding Machines Considering ZSC

With the increase of motor drive system dependability requirements, the post-fault operation capabilities offered by open-end winding (OW) machines have seen growing interest. This paper discusses the existing post-fault operation strategies for different configurations of the OW machine topology, specifically their advantages and disadvantages, as well as post-fault output power, and tolerated faults. Notably, the zero-sequence current (ZSC) associated with the topologies is discussed, as it may introduce harmful side-effects into the operation.