应用于高压低频输电的H桥级联型矩阵变换器环流机理分析

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Abstract The high voltage low-frequency AC transmission has many advantages in off-shore wind power, metropolis power supply, AC cable reconstruction for enlarging capacity. Herein, high voltage AC-AC converter is one of the significant technologies. As the direct AC-AC converter, the cascaded H-bridge matrix converter (CHB-MC) is an appropriate converter owing to its high performance in low frequency conditions. In this paper, DC voltage fluctuation and circulating current (CC) of CHB-MC were analyzed with common term formula based on the CC equivalent circuit. The frequency and magnitude of characterized frequency of CC were derived, and the relevant parameters of CHB-MC were also analyzed in detail. The simulation on PLECS platform verified the analyses above.

Key words： High voltage low frequency AC transmission cascaded H-bridge matrix converter DC voltage fluctuation circulating current

Received: 30 March 2016 Published: 29 March 2017

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TM726

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	Articles by authors
	Xu Yunfei
	Xiao Xiangning
	Sun Yamin
	Yuan Chang
	Long Yunbo

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Xu Yunfei,Xiao Xiangning,Sun Yamin等. Circulating Current Analysis of Cascaded H-Bridge Matrix Converter for High Voltage Low-Frequency AC Transmission[J]. Transactions of China Electrotechnical Society, 2017, 32(6): 191-200.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I6/191

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