Stand-alone hybrid energy systems based on solar and energy storage are an effective option for rural areas to meet the load demand. The objective of the current work is to the optimal configuration of a stand-alone hybrid photovoltaic/battery energy storage system with the help of an efficient metaheuristic algorithm, improved harmony search, to supply electrical of a residential load in Iran. The objective function is a minimization of total life cycle cost (TLCC) subject to the reliability index (loss of load probability). The optimal configurations of hybrid systems are compared in respect of different losses of load probability (0 to 20%). Sensitivity analysis and effects of economic parameters based on photovoltaic and battery prices are carried out to study the possibility of the suggested scheme. The results show that, by increasing the reliability index from 0 to 20%, the optimal number of panels and batteries decreases by 52 and 1202. Also, it is found that the TLCC of the system and cost of system components are increased by decreasing of the reliability index value.

中文翻译：

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可靠性指标对通过优化方法优化配置的混合太阳能/电池能源系统的影响：案例研究

基于太阳能和储能的独立混合能源系统是农村地区满足负荷需求的有效选择。当前工作的目标是借助高效的元启发式算法、改进的和声搜索来优化配置独立的混合光伏/电池储能系统，为伊朗的住宅负载供电。目标函数是受可靠性指标（负载损失概率）影响的总生命周期成本 (TLCC) 的最小化。针对不同的负载概率损失（0 到 20%）比较了混合系统的最佳配置。对基于光伏和电池价格的经济参数的敏感性和影响进行了研究，以研究建议方案的可能性。结果表明，