基于混合储能系统跟踪光伏发电输出功率的控制策略

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Abstract Hybrid energy storage system has the technical characteristics of both energy storage and power storage. It can effectively reduce the photovoltaic power prediction error, hence improve the reliability where PV forecast output is used as the reference of the power dispatch. Therefore, this paper proposes an optimal control strategy for hybrid energy storage system to improve the capacity of photovoltaic output tracking the target output power. This strategy uses the compound control method to control the internal energy coordination control and the multi-objective optimization control. It can reasonably distribute the charge and discharge power of battery and super capacitor, and control the output of the hybrid system to make up for the deviations between the predicted power and the actual power. By analyzing the data of 250 days output power from a domestic 40MW photovoltaic power station, it is shown that this strategy can not only effectively trace the predicted output power of PV, but also make full use of the characteristics of different storage mediums. It reduces the charge and discharge depths of the battery, and consequently the hybrid storage can be better applied.

Key words： Hybrid storage system lithium battery super capacitor power output tracking compound control strategy

Received: 19 December 2015 Published: 28 July 2016

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TM715

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	Articles by authors
	Tian Chunguang
	Tian Li
	Li Dexin
	Lü
	Xiangyu
	Chang Xuefei

Cite this article:

Tian Chunguang,Tian Li,Li Dexin等. Control Strategy for Tracking the Output Power of Photovoltaic Power Generation Based on Hybrid Energy Storage System[J]. Transactions of China Electrotechnical Society, 2016, 31(14): 75-83.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I14/75

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