一种新的单相-三相矩阵变换器调制策略

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Abstract For direct single-phase to three-phase matrix converter, a new SPWM strategy is proposed. Single-phase to three-phase matrix converter can output three-phase balanced voltage with tunable amplitude and frequency, while assuming single-phase input power source is a cosine function and employs a special modulate function signal defined as a cosine series, which frequency is the summation of output frequency and odd multiple of input frequency. Assuming that the delivered current to the load is a sinusoidal balanced one, the input current equation can be obtained. Simulation experience with ohmic-inductive load is done by using the proposed control method via Matlab/ Simulink software. And the experimental results on a laboratory proto-type converter verify that, the converter can provide balanced sinusoidal currents with a wide frequency tuning range through the proposed modulation strategy. Besides, the output currents have low THD and the input power factor always remains unity. Clearly, the converter has an improved performance.

Key words： Single-phase to three-phase matrix converter SPWM frequency tuning range THD input power factor

Received: 30 April 2013 Published: 25 May 2015

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TM461

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	Articles by authors
	Xing Yichuan
	Mu Xianmin
	Qi Chen

Cite this article:

Xing Yichuan,Mu Xianmin,Qi Chen. A New Modulation Strategy for Single-Phase to Three-Phase Matrix Converter[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 90-96.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I8/90

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