一种基于超级电容器组串并联切换的储能系统

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Abstract This paper proposes a novel energy storage system (ESS) that is aiming at satisfying high efficiency energy flow requirements of internal combustion-linear generator integrated power system (ICLGIPS). In the proposed ESS, series-parallel switchover Ultra-capacitor (UC) banks can be combination with the optimization designed bi-direction DC-DC power converter (BDPC) to ensure a variable voltage power system supply under low-voltage level. The supply voltage and system voltage can be changed independently. It makes the system voltage can vary with different power plant needs. And the bi-directional boost/buck operation under four work conditions can be achieved, the speed adjustment range of motor is extended and the desired variable ration of BDPC with a wide voltage range is achieved by using series-parallel connections switchover technology for UC banks. The simulation and experimental results are in positive to the analysis showing the feasibility of the proposed system and control strategy.

Key words： Linear electric generator(LEG) ultra-capacitor(UC) banks series-parallel switchover bi-direction DC-DC power converter(BDPC) energy storage system(ESS)

Received: 24 May 2012 Published: 16 June 2014

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	Ren Guizhou
	Chang Siqin

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Ren Guizhou,Chang Siqin. An Energy Storage System Based on Series-Parallel Switchover of Ultra-capacitor Banks[J]. Transactions of China Electrotechnical Society, 2014, 29(1): 187-195.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I1/187

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