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.
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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2017, Vol. 32 
