低开关频率下双三相感应电机矢量控制策略

doi:10.19595/j.cnki.1000-6753.tces.170026

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Abstract Because of some inherent advantages, the dual three-phase induction machine is suitable for railway transportation and other low-voltage, high-power and high-reliability occasions. Due to switching losses and cooling conditions, the maximum switching frequency of the inverter in high-power traction drive systems is usually not more than 1kHz. According to the characteristics of the multi-mode modulation technique, the vector control strategy under low switching frequency for the dual three-phase induction machine is proposed in this paper. It includes the flux observer, the currents regulators in (αβ) subspace and (xy) subspace, the phase-angle regulator, and the correction strategy of the flux orientation. Besides, in the view of the problem that the voltage amplitude cannot be adjusted under the condition of square waves, a modified vector control strategy is presented. Simulation of a software simulation system and experimental results from a prototype machine verify the proposed vector control strategy under low switching frequency.

Key words： Dual three-phase induction machine vector control low switching frequency synchronous modulation square wave

Received: 12 January 2017 Published: 24 April 2018

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TM315

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	Articles by authors
	Wang Chenchen
	Wang Kun
	You Xiaojie
	Zhou Minglei

Cite this article:

Wang Chenchen,Wang Kun,You Xiaojie等. Vector Control Strategy for Dual Three-Phase Induction Machines under Low Switching Frequency[J]. Transactions of China Electrotechnical Society, 2018, 33(8): 1732-1741.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170026 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I8/1732

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