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AssigneeJiangsu University
InventorsLi Zhang, Sisi Deng, Xiaoyong Zhu, Zixuan Xiang, Dong Shen, Li Quan
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The present disclosure provides a permanent-magnet fault-tolerant in-wheel motor based on an active sensorless strategy and drive and design methods thereof. The present disclosure proposes the permanent-magnet fault-tolerant in-wheel motor drive system based on an active sensorless strategy by considering sensorless operation performance in advance in a motor design stage. The present disclosure adopts fractional-slot concentrated windings, and ingeniously arranges alternating poles, a multi-layer magnetic barrier, and auxiliary permanent magnets, thus improving a sensorless operation accuracy of the motor while ensuring fault tolerance of the motor. The present disclosure proposes a frequency-band-adaptive secondary harmonic suppression strategy at a control layer to suppress an influence of a secondary salient harmonic on position observation and improve dynamic response performance of a system.
A permanent-magnet fault-tolerant in-wheel motor based on an active sensorless strategy, comprising a rotating shaft, a stator, and a rotor that are arranged in order from inside to outside, wherein
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