一种基于电流滞环控制的模块化多电平变流器调制策略

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Abstract An improved nearest level modulation (MLM) method is proposed in this paper,for modular multilevel converters (MMC) in low-voltage and medium-voltage application.An current hysteresis controller is used to correct the differential current.The hysteresis band of the hysteresis controller was analyzed.The proposed modulation method has merits such as easy implementation,good dynamic performance,small calculation burden.Comparison between traditional NLM and improved NLM is presented in simulation and experiment.The results prove that the proposed method can effectively improve the quality of output current and follow the reference current accurately.

Key words： Modular multilevel converter hysteresis control nearest level modulation output current quality

Received: 28 April 2015 Published: 18 September 2016

PACS:

TM46

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	Articles by authors
	Peng Yelun
	Huang Shoudao
	Zhang Wenjuan
	Huang Sheng
	Wang Xingyao

Cite this article:

Peng Yelun,Huang Shoudao,Zhang Wenjuan等. A Modulation Strategy Based on Current Hysteresis Control for Modular Multilevel Converter[J]. Transactions of China Electrotechnical Society, 2016, 31(17): 94-101.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I17/94

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