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首页> 外文期刊>Renewable Power Generation, IET >Research on power sharing strategy of hybrid energy storage system in photovoltaic power station based on multi-objective optimisation
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Research on power sharing strategy of hybrid energy storage system in photovoltaic power station based on multi-objective optimisation

机译：基于多目标优化的光伏电站混合储能系统功率共享策略研究

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摘要

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.
机译：电池/超级电容器（SC）混合储能系统（HESS）是抑制辐射变化期间光伏（PV）发电系统功率波动的有效方法。这项研究着重于具有两个优化目标的不同储能组件之间的功率共享：能量损失和SC的充电状态。首先，分析了HESS的拓扑结构及其与光伏系统的联系。第二，HESS的控制目标已被组织为优化目标。提出了一种基于可变权重的线性加权求和算法，以解决多目标优化问题，以获得SC和电池的电流参考。第三，基于提出的算法设计了HESS的能源管理系统。仿真和实验结果验证了所提出的算法和控制策略。

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