一种新型单桥臂电感模块化多电平变流器及其控制方法

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Abstract A new modular multilevel converter (MMC) with single arm inductor is proposed, and compared to the conventional MMC topology one arm inductor is saved per each phase. To this asymmetric converter, a control method is proposed. Taking the MMC without lower arm inductors for example, a virtual arm inductor voltage is added to the reference voltage of cascaded modules in lower arm to make the converter symmetrically operating. And combined to circulating current restraint algorithm, a complete control block diagram is presented. At last experimental results demonstrate the effectiveness of the proposed control strategies.

Key words： Modular multilevel converter single arm inductor fictitious bridge inductor symmetrical operation circulating current restraint

Received: 11 July 2013 Published: 18 June 2014

PACS:

TM464

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	Lei Ming
	Li Yaohua
	Ge Qiongxuan
	Wang Xiaoxin

Cite this article:

Lei Ming,Li Yaohua,Ge Qiongxuan等. A New Modular Multilevel Converter with Single Arm Inductor <br/>and Its Control Strategies[J]. Transactions of China Electrotechnical Society, 2014, 29(2): 231-238.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I2/231

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