Design and Analysis of a Five-Phase Permanent-Magnet Synchronous Motor for Fault-Tolerant Drive

Muhammad H. Iftikhar, Byung-Gun Park and Ji-Won Kim
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Muhammad H. Iftikhar: Department of Electrical and Electronics Engineering, University of Strathclyde, Glasgow G1 1XQ, UK
Byung-Gun Park: Korea Electrotechnology Research Institute, University of Science & Technology, Changwon 34113, Korea
Ji-Won Kim: Korea Electrotechnology Research Institute, University of Science & Technology, Changwon 34113, Korea

Energies, 2021, vol. 14, issue 2, 1-17

Abstract: Reliability is a fundamental requirement in electric propulsion systems, involving a particular approach in studies on system failure probabilities. An intrinsic improvement to the propulsion system involves introducing robust architectures such as fault-tolerant motor drives to these systems. Considering the potential for hardware failures, a fault-tolerant design approach will achieve reliability objectives without recourse to optimized redundancy or over-sizing the system. Provisions for planned degraded modes of operation are designed to operate the motor in fault-tolerant mode, which makes them different from the pure design redundancy approach. This article presents how a five-phase permanent-magnet synchronous motor operates under one- or two-phase faults, and how the system reconfigures post-fault motor currents to meet the torque and speed requirement of reliable operation that meets the requirements of an electric propulsion system.

Keywords: multiphase motor; fault-tolerant drive; electric propulsion (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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