Design and analysis of a five-phase permanent-magnet synchronous motor for fault-tolerant drive

Iftikha, Muhammad H. and Park, Byung‐Gun and Kim, Ji‐Won (2021) Design and analysis of a five-phase permanent-magnet synchronous motor for fault-tolerant drive. Energies, 14 (2). 514. ISSN 1996-1073

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    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.

    ORCID iDs

    Iftikha, Muhammad H. ORCID logoORCID: https://orcid.org/0000-0001-5537-1827, Park, Byung‐Gun and Kim, Ji‐Won;