考虑二极管非理想特性的中点钳位三电平电路的分析

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Abstract The nonideal characteristic of high power diode is mainly the higher forward recovery voltage and reverse recovery current. Based on the generant mechanism of the nonideal characteristic, the transient behavior of diode is investigated in the various circuit state of the three-level neutral point clamping (NPC), and the effect on the main switch is also studied. The diode functional model with forward and reverse recovery is built by Saber. The feasibility of the diode model in quantitative analyzing the three-level NPC is proved by the simulation. The experiment result further shows that the theoretical analysis and the simulation is correct.

Key words： Power diode forward recovery reverse recovery three-level NPC circuit

Received: 21 December 2009 Published: 04 March 2014

PACS:

TM464

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	Articles by authors
	Meng Qingyun
	Ma Weiming
	Sun Chi
	Jie Guisheng

Cite this article:

Meng Qingyun,Ma Weiming,Sun Chi等. The NPC Three-Level Circuit Considering Nonideal Characteristic of Diode[J]. Transactions of China Electrotechnical Society, 2010, 25(6): 40-46.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I6/40

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