基于固态切换开关的感应电机类负荷电源快速切换新策略及参数计算

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Abstract As an important load of naval vessels, electric plants and steel plants, induction motor should be switched rapidly from main source to alternative source after its power outages. However, the transient inrush produced by such dynamic load under the adverse conditions would have serious consequences. Accordingly, a novel rapid power switching control strategy of induction motor load was proposed based on solid state transfer switch (SSTS) in this paper. The proposed strategy could not only rapidly transfer the critical load from main source to alternative source, but also effectively suppress the transient inrush under the condition of the various phase-angle differences between the two sources. Then, the complex transient of induction motor during the switching control process of the alternative source was analyzed. And the main factors affecting the suppression of the transient inrush were discussed. Besides, the relationship between control parameters and current peak values was explained when the phase-angle difference between the two sources was known. The control parameters could be obtained by the requirement of the current-limit suppression. Finally, the calculation and test results of the stator currents verified that the proposed rapid power switching strategy and the parameters calculation were correct and effective.

Key words： Novel rapid power switching strategy solid state transfer switch control parameters current limit induction motor

Received: 12 August 2015 Published: 13 October 2016

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TM32

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	Cui Xueshen
	Zhang Zili
	Wang Zezhong
	Li Heming
	Yang Yaping

Cite this article:

Cui Xueshen,Zhang Zili,Wang Zezhong等. Novel Rapid Power Switching Strategy and Its Parameter Calculation of Induction Motor-Load Based on Solid State Transfer Switch[J]. Transactions of China Electrotechnical Society, 2016, 31(18): 21-28.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I18/21

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