Novel Fault Tolerant Permanent Magnet Synchronous Motor (PMSM)
In electric machines (motors) one of the most studied areas is fault mitigation techniques. In machines, many different types of faults (both electrical and mechanical) can occur. One of the most severe types of electrical faults is an inter-turn short circuit fault (ITSC). This project focuses on designing a type of permanent magnet synchronous (PMSM) to mitigate the effects of an ITSC.
The main difference in this PMSM compared to the many PMSMs that have been proposed or are commercially available, is that it uses a special winding arrangement that was developed, and additionally integrates differential mode chokes into the stator back iron. Both of these novel design features has shown to be incredibly effective at mitigating the short circuit current when an ITSC occurs.
We are still in the process of publishing the final results of the prototype you see images of here, but initial results show up to a 90% reduction in fault current when the integrated chokes are used. Once the results are published, I will update this page with more images and a link to the full paper.
