This paper proposes a comprehensive analysis of inter-turn short circuits (ISC) in interior permanent magnet synchronous machines (IPMSM). Although there is plenty of literature available for inter-turn short circuit analysis in electric machines, there is a gap of knowledge to unify ISC analysis of IPMSM under the same constraints. This paper conducts ISC finite element analysis (FEA) under different operating conditions and slot/pole combinations under the same current density. This study also provides a discussion on how an ISC could cause saturation in the motor. Finally, an analysis of ISC under closed-loop control in the rotor reference frame is performed. This paper provides opportunities for machine designs robust to ISC and techniques to detect ISC using the control loop.
Analysis of Inter-turn Short Circuits in Interior Permanent Magnet Synchronous Machines, Including Saturation and Closed-loop Operation
2021-06-21
1057993 byte
Conference paper
Electronic Resource
English
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