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.
徐云飞, 肖湘宁, 孙雅旻, 袁敞, 龙云波. 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[J]. 电工技术学报, 2017, 32(6): 191-200.
Xu Yunfei, Xiao Xiangning, Sun Yamin, Yuan Chang, Long Yunbo. Circulating Current Analysis of Cascaded H-Bridge Matrix Converter for High Voltage Low-Frequency AC Transmission. Transactions of China Electrotechnical Society, 2017, 32(6): 191-200.
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