中低频轻载工况下引入虚拟电抗的感应电机变频调速系统稳定控制

doi:10.19595/j.cnki.1000-6753.tces.201291

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Abstract In order to solve the oscillation of speed and current in the induction motor variable frequency speed control system under low frequency and light load conditions, this paper proposes a V/f control method with virtual reactance of induction motor variable frequency speed control system. First, the mathematical model of induction motor variable frequency speed control system is established, and the steady-state performance of the system under V/f control has been analyzed. The root locus of the system with virtual reactance is then analyzed. It is shown that the virtual reactance injection can further improve the stability and suppress the oscillation of the system under low frequency and light load conditions. Finally, the simulation and high-power induction motor variable frequency speed control system experiment verify that the proposed V/f control method with virtual reactance injection can realize low speed ripple and low current oscillation operation under low-frequency and light load conditions.

Key words： Induction motor variable frequency speed control system V/f control virtual reactance low frequency and light load conditions

Received: 25 September 2020

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TM346+.2

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	Articles by authors
	Yi Shan
	Lu Ziguang
	Yuan Kainan
	Wu Gongping
	Huang Shoudao

Cite this article:

Yi Shan,Lu Ziguang,Yuan Kainan等. The Stability Control of Induction Motor Variable Frequency Speed Regulation System Injected with Virtual Reactance under Low Frequency and Light Load Condition[J]. Transactions of China Electrotechnical Society, 2022, 37(8): 1959-1971.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201291 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I8/1959

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