双反星形不控整流器的直流侧双无源谐波抑制方法

doi:10.19595/j.cnki.1000-6753.tces.180267

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Abstract This paper proposes a dual-passive-harmonic-reduction method for double-star uncontrolled rectifier. In this method, a multi-winding interphase reactor is used instead of the inter-phase reactor, its primary winding and two common cathode diodes constitute a two-tap converter, its secondary winding and another two common cathode diodes constitute a single-phase full-wave rectifier circuit. These two passive circuits make up a dual passive harmonic reduction circuit. Under the effect of the dual passive harmonic reduction circuit, the double-star uncontrolled rectifier can increase the output pulse to three times the original value, and become an 18-pulse rectifier. In this paper, the working modes of dual passive harmonic reduction circuit is analyzed, and from the perspective of minimum THD of input line current, the multi-winding interphase reactor is optimized. Theoretical analysis shows that the THD value of input line current is reduced to 10.1% after using the dual passive harmonic reduction method, and the load voltage ripple is 7.56×10^-3. Simulation and experimental results verify the correctness of the theoretical analysis. Since only passive devices are adopted in this method, the circuit structure is simple and easy to implement.

Key words： Double-star rectifier dual passive harmonic reduction method multi-winding inter- phase reactor

Received: 05 March 2018 Published: 05 May 2019

PACS:

TM461.3

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	Meng Fangang
	Xu Xiaona
	Gao Lei
	Yang Shiyan

Cite this article:

Meng Fangang,Xu Xiaona,Gao Lei等. Dual Passive Harmonic Reduction at DC Link of the Double-Star Uncontrolled Rectifier[J]. Transactions of China Electrotechnical Society, 2019, 34(8): 1689-1697.

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http://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180267 OR http://dgjsxb.ces-transaction.com/EN/Y2019/V34/I8/1689

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