基于PSM技术的70kV/90A高压脉冲电源的研制

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Abstract The high microwave and neutral beam injection of the auxiliary heating systems are used to heat or drive the plasma in the controlled nuclear fusion devices. These equipment can be destroyed easily with low energy when arcing occurs. So the high-voltage power supply which supplies to the auxiliary heating systems should have many features, such as flexible control, high stability, fast response, high power factor, short protective time, very low energy discharged to these equipment when the loads are arcing. The power supply based on PSM technology is a method of controlling the total output voltage of many identical DC choppers connected in series by means of managing the work of them step by step and modulating their pulse widths in a certain sequence. This kind of power supply has some advantages which have been mentioned, especially the low energy stored in the whole system and short protective time. Such a high voltage power supply system has already been developed. Its circuit is simple and control mode is flexible. The results show that the output is about 72kV/90A and the parameters are superior to the high-voltage power supply based on thyristors.

Key words： Step modulation(SM) pulse step modulation(PSM) the auxiliary heating system control mode and algorithm high-voltage pulse power supply

Received: 16 August 2010 Published: 10 March 2014

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TM89

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	Xu Weidong
	Chen Wenguang
	Xuan Weimin
	Yao Lieying
	Wang Yingqiao

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Xu Weidong,Chen Wenguang,Xuan Weimin等. Development of the 70kV/90A High-Voltage Pulse Power Supply Based on PSM Technology[J]. Transactions of China Electrotechnical Society, 2011, 26(12): 129-135.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I12/129

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