电子电力变压器储能系统及其最优控制

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Abstract In order to make EPT provide added ability to ride voltage momentary interruptions, the energy storage system of EPT is studied in this paper. The proposed energy storage system consists of an ultracapacitors bank and a bidirectional DC-DC converter, and the ultracapacitors bank is connected to the dc link in EPT through the dc-dc converter. In order to improve control performance of the bidirectional DC-DC converter, an optimal control scheme based on the linear quadratic regulator (LQR) is also presented in detail. The proposed system was implemented in laboratory based on DSP TMS320- F2812. Experimental results verify the ability of the EPT based on ultracapacitors storage energy and the validity of the proposed control scheme.

Key words： Electronic power transformer linear quadratic regulator bidirectional DC/DC converter ultracapacitors voltage momentary interruptions

Received: 29 December 2008 Published: 04 March 2014

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TM41

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	Articles by authors
	Liu Haibo
	Mao Chengxiong
	Lu Jiming
	Wang Dan

Cite this article:

Liu Haibo,Mao Chengxiong,Lu Jiming等. Energy Storage System of Electronic Power Transformer and Its Optimal Control[J]. Transactions of China Electrotechnical Society, 2010, 25(3): 54-60.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I3/54

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