高速磁悬浮列车在双端供电模式下的电流控制策略

doi:10.19595/j.cnki.1000-6753.tces.201053

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Abstract In order to solve the problems of circulating current and large loss of high-speed maglev train in the double feeding mode, an improved direct mode current control strategy is proposed to regulate the load current distribution. Firstly, the paper establishes the equivalent circuit model of motor current and circulating current of traction system in the double feeding mode. Then, the reason of the circulating current is analyzed, and a double closed-loop control strategy of speed and current in synchronous coordinate system is proposed. This strategy controls the motor current by the speed regulator, distributes the motor current through the current regulator and the circulating current regulator, and suppresses the circulating current in the line. The results of hardware-in-the-loop (HIL) experiments show that the control strategy realizes the load current distribution of the inverter, reduces the loss on the feeder cable, and effectively suppresses the circulating current between the parallel inverter while ensuring good dynamic performance of the motor.

Key words： High-speed maglev double feeding mode feeder cable circulating current loss

Received: 15 August 2020

PACS:

TM359.4

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	Articles by authors
	Zhu Jinquan
	Ge Qiongxuan
	Sun Pengkun
	Wang Xiaoxin
	Zhang Bo

Cite this article:

Zhu Jinquan,Ge Qiongxuan,Sun Pengkun等. Current Control Strategy for High-Speed Maglev in the Double Feeding Mode[J]. Transactions of China Electrotechnical Society, 2021, 36(23): 4937-4947.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201053 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I23/4937

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