最大转矩范围内九相永磁同步电机缺相容错运行铜耗优化策略

doi:10.19595/j.cnki.1000-6753.tces.211027

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Abstract The maximum output torque (MT) and the minimum stator copper loss (ML) are two common optimization objectives in the fault-tolerant operation of multi-phase motors, and the existing fault-tolerant control schemes mostly choose between MT and ML, which is difficult to take into account at the same time. In this paper, a strategy considering MT and ML synchronously is proposed for nine-phase permanent magnet synchronous motors (PMSM) with open-circuited faults of one or two phases. First, the maximum output torque range of the faulty motor is calculated under MT. Then, the stator copper loss is optimized under different load conditions by ML. Hence, the optimal copper loss control is realized for the nine-phase PMSM fault-tolerant operation in maximum torque range. Finally, a series of 9kW nine-phase PMSM fault-tolerance control experiments are performed to verify the validity of the proposed strategy.

Key words： Maximum torque range copper loss optimization open-circuited fault fault-tolerant operation

Received: 12 July 2021

PACS:

TM351

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	Li Xiudong
	Zheng Xiaoqin
	Wang Haifeng
	Wu Xinzhen

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Li Xiudong,Zheng Xiaoqin,Wang Haifeng等. Copper Loss Optimization Strategy for Nine-Phase Permanent Magnet Synchronous Motors Fault-Tolerant Operation in Maximum Torque Range[J]. Transactions of China Electrotechnical Society, 2022, 37(17): 4355-4363.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.211027 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I17/4355

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