期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 70, 期 7, 页码 6574-6584出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2022.3203675
关键词
Circuit faults; Permanent magnet motors; Windings; Synchronous motors; Harmonic analysis; Power system measurements; Electromagnetics; Fault tolerant (FT); inductance; in-wheel motor; losses; magnetomotive force (MMF); modular; open circuit; permanent magnet (PM)
This article proposes a modular permanent magnet in-wheel motor design for electric vehicles, aiming to achieve high reliability and fault-tolerant capability. The design includes a slot-pole combination with high fault-tolerant performance. The electromagnetic characteristics and torque performance of the motor are investigated, and a prototype is produced and verified through experiments.
In-wheel motors, as the core power component of electric vehicles, require not only high power density but also high reliability and fault-tolerant (FT) capability. This article proposes a modular permanent magnet (PM) in-wheel motor and design to receive the high FT performance and low magnetomotive force (MMF) space harmonic. First, according to the working mechanism and main faulty types of the modular FT motor, the corresponding FT control strategies are given, and the slot-pole combination with high FT performance for the modular motor is developed. Second, the electromagnetic characteristics of the modular in-wheel motor are investigated. The relationship between the FT performance and the inductance parameters is linked through the magnetic coupling coefficient. The design requirement for the inductance of this kind of motor is proposed. Third, the torque performance of the motor is studied, and the factors affecting torque performance during fault and FT operations are revealed. Finally, a prototype with a slot-pole combination of 24S16P and four modules is produced, and the electromagnetic characteristics of the motor under FT operations are verified by experiments.
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