Research on power sharing strategy of hybrid energy storage system in photovoltaic power station based on multi-objective optimisation
Research on power sharing strategy of hybrid energy storage system in photovoltaic power station based on multi-objective optimisation
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DOI：
10.1049/iet-rpg.2015.0199
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发表时间：
2016-05-01
影响因子：
2.6
通讯作者：
Hu, Renjie
中科院分区：
文献类型：
--
作者：
Jiang, Wei;Zhang, Lei;Hu, Renjie
蓄电池/超级电容混合储能系统是抑制光伏发电系统在辐射变化时功率波动的有效途径。本研究的重点是不同的能量存储组件之间的功率共享与两个优化目标：能量损耗和状态的充电SC。首先，HESS的拓扑结构及其与光伏系统的连接进行了分析。第二，HESS的控制目标已被组织为优化目标。提出了一种基于变权的线性加权求和算法来解决多目标优化问题，以获得SC和电池的电流参考。第三，基于所提出的算法设计了HESS的能量管理系统。仿真和实验结果验证了所提出的算法和控制策略的有效性。
Battery/supercapacitor (SC) hybrid energy storage system (HESS) is an effective way to suppress the power fluctuation of photovoltaic (PV) power generation system during radiation change. This study focuses on the power sharing between different energy storage components with two optimisation objectives: energy loss and state of charge of SC. First, the topology of HESS and its connection with PV system are analysed. Second, the control targets of the HESS have been organised as optimisation objectives. A linear weighted summation algorithm based on variable weights is proposed to solve the multi-objective optimisation problem to obtain current reference of SC and battery. Third, the energy management system of the HESS is designed based on proposed algorithms. Simulation and experiment results verified the proposed algorithms and control strategy.