大容量脉冲电容器放电起始阶段晶闸管电压高频振荡机理研究

doi:10.19595/j.cnki.1000-6753.tces.181928

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Abstract For pulsed power supply module of an electromagnetic railgun system, thyristors that have the excellent ability to withstand high voltage and high pulse current is always selected as the pulse discharging switch to reduce the volume and improve energy storage density. Existing literatures have extensively researched the dynamic opening process of thyristor and improved the accuracy of thyristor equivalent circuit model. This paper studied a special voltage oscillation phenomenon caused by high frequency resonance in main circuit during pulse capacitor discharge. Firstly, the mechanism of the voltage oscillation was studied according to the configuration of the main circuit. Further, circuit simulation was carried out to verify the correctness of the theoretical analysis above. Finally, a feasible method was proposed to eliminate the voltage oscillation. The related conclusions in this paper have certain practical significance for optimizing the pulsed power module used in electromagnetic railgun system.

Key words： Pulse capacitor pulsed power module electromagnetic railgun thyristor dynamic opening process voltage oscillation

Received: 21 December 2018 Published: 27 March 2020

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TM46

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	Zhu Bofeng
	Lu Junyong
	Zhang Xiao
	Dai Yufeng
	Wang Xin

Cite this article:

Zhu Bofeng,Lu Junyong,Zhang Xiao等. Study on the High Frequency Voltage Oscillation of Thyristor During the Initial Stage of Pulse Capacitor Discharge[J]. Transactions of China Electrotechnical Society, 2020, 35(6): 1272-1278.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181928 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I6/1272

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