基于谐波注入法的级联型逆变器谐波消除研究

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Abstract In order to reduce the low order harmonic content of output voltage waveform for H bridge cascaded multilevel inverter, a harmonic elimination method is studied through controlling the switch angles of each H bridge.There is considerable difficulty in solving the multi-variable high-order equation system when the method of solving equations is applied to eliminate specified harmonics, a novel method of eliminating specified harmonics based on harmonic injection is presented in this paper.This method is based on equal area criteria and harmonic injection. With the proposed method, regardless of how many voltage levels are involved, only several simple equations and several iterations are needed. Finally, in five H bridge cascaded inverter, simulation and experimental results show the correctness of the proposed method.

Key words： Cascaded inverter multi-variable high-order equation system harmonic injection equal area criteria

Received: 19 September 2010 Published: 20 March 2014

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TM921

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	Articles by authors
	Zhu Siguo
	Lu Jiazheng
	Ouyang Honglin
	Li Bo

Cite this article:

Zhu Siguo,Lu Jiazheng,Ouyang Honglin等. Research of Harmonic Elimination Based on Harmonic Injection for Cascaded Inverter[J]. Transactions of China Electrotechnical Society, 2012, 27(8): 194-202.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I8/194

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