应用于大容量变换器的IGBT并联技术

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Abstract For large-current application and low cost, switching devices sometimes have to be connected in parallel in high power converter. In this paper, the theoretical analysis and experimental study of static current balancing and transient current balancing for IGBT paralleling application are presented. Moreover, the current sharing of IGBTs in parallel with thermal imbalance is focused and researched by experiments. An active gate control circuit which is based on adjusting the gate voltages and gate resistances, is proposed and verified by experiments. The application of four IGBTs connected in parallel is implemented based on the research of two parallel-connected IGBTs. The four parallel-connected IGBTs can work at over 2kA, which has been applied in a 315kW/380V converter prototype.

Key words： IGBT paralleling static current balancing transient current balancing high-power converter thermal imbalance

Received: 09 November 2010 Published: 20 March 2014

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TM46

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	Wang Xuesong
	Zhao Zhengming
	Yuan Liqiang
	Lu Ting

Cite this article:

Wang Xuesong,Zhao Zhengming,Yuan Liqiang等. Parallel Technique for IGBT Modules Applied in High-Power Converter[J]. Transactions of China Electrotechnical Society, 2012, 27(10): 155-162.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I10/155

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