基于直流侧有源谐波抑制方法的高功率密度多脉波整流器

doi:10.19595/j.cnki.1000-6753.tces.L70175

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Abstract In order to improve the ability of harmonic reduction and power density,this paper proposes a multi-pulse rectifier based on harmonic reduction technology at DC link and star-connected autotransformer.The proposed rectifier employs two diode bridges,each followed by a Boost converter.By controlling the inductor current of Boost converter,the input line current of the proposed rectifier can be shaped as sinusoidal waveform approximately.A star-connected autotransformer is used to be phase-shift transformer and the winding of the autotransformer are interconnected,which can significantly reduce the equivalent kVA rating of the transformer and improve the power density.This paper also calculates the theoretical inductor current waveform of Boost converter when the input line current is sinusoidal,and presents the applicable current waveform.The effect of harmonic reduction method on the kVA rating of star-connected autotransformer is also analyzed.The simulated and experimental results indicate that the rectifier can restrain large harmonic contents in input current obviously and has the merits of high power density.

Key words： Multi-pulse rectifier harmonic reduction at DC link star-connected autotransformer

Received: 15 August 2016 Published: 25 October 2017

PACS:

TM461.3

Corresponding Authors: 国家自然科学基金(51307034)和中国博士后科学基金(2016M590281)资助项目。

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	Meng Fangang
	Luo Jirong
	Gao Lei
	Yang Wei
	Yang Shiyan

Cite this article:

Meng Fangang,Luo Jirong,Gao Lei等. A High Power Density Multi-Pulse Rectifier Based on Harmonic Reduction Technology at DC Link[J]. Transactions of China Electrotechnical Society, 2017, 32(19): 134-140.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L70175 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I19/134

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