Abstract
Mutual coupling effect between different winding modules causes undesirable effects for the fault tolerant machine drives, such as current distortion, torque ripple, and increased fault current. In this article, a mixed-pitch segregated winding configuration is presented for a triple modular fault tolerant permanent magnet (PM)-assisted synchronous reluctance machine (PMA-SynRM). It exhibits less mutual coupling effect between the different winding sets, which leads to improved fault tolerance compared to the existing full-pitched segregated windings. The mutual coupling effect is described by deriving the magnetomotive force (MMF) profile, and the fault tolerant performance improvement is proven by detailed finite-element (FE) analysis and prototyping tests in healthy and various fault conditions. The results confirm that the presented winding machine has the same healthy performance as the conventional full-pitched windings, and it operates in a more balanced manner with less current distortion and lower turn fault current. It will become a more competing candidate for the safety critical applications.
Original language | English |
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Pages (from-to) | 4549-4559 |
Number of pages | 11 |
Journal | IEEE Transactions on Transportation Electrification |
Volume | 8 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Dec 2022 |
Keywords
- Fault tolerant
- magnetomotive force (MMF)
- multiple 3-phase
- mutual coupling
- turn short-circuit fault
ASJC Scopus subject areas
- Automotive Engineering
- Transportation
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering