光伏储能系统中的电池损耗模型及经济效益分析  

Battery loss model and economic benefit analysis in photovoltaic energy storage system

作　　者：朱啸宇 刘学智 ZHU Xiaoyu;LIU Xuezhi(School of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《供用电》2022年第12期98-102,共5页Distribution & Utilization

摘　　要：电池储能系统能够达到削峰填谷和减小波动等效果,在近几年得到了广泛应用。在考虑电池损耗情况下,为更精确地评价储能系统的经济效益,介绍了一个新的经济模型。首先,考虑电池老化问题,构建了电池损耗成本模型并对不同运行方式下电池工作状态进行了研究;其次,引用现金流折现模型并与储能系统相结合构建了经济模型,对储能系统投资决策进行了分析;最后,对储能系统在3种运行方式下的经济效益进行分析和对比,证明所提方法是合理的。在相同的使用年限内电池电量阈值越高,电池损耗越大,但是总体的盈利效果更好。The battery energy storage system can cut peaks and fill valleys and reduce fluctuations,and has been widely used in recent years.Considering the loss of the battery,in order to more accurately evaluate the economic benefits of the energy storage system,a new economic model is introduced in this paper.The article firstly establishes the battery loss cost model based on the aging of the battery,and studies the working conditions of the battery under different operating modes.Then,the discounted cash flow model is used to establish an economic model combined with the energy storage system to analyze the investment decision of the energy storage system.Finally,the economic benefits of the energy storage system under the three operating modes are analyzed and compared,which verifies the rationality of the method in this paper.The research conclusion found that under the same service life,the higher the battery power threshold,the greater the battery loss,but the better the overall profitability.

关 键 词：光伏 储能系统 电池损耗模型 现金流折现模型 经济效益分析 

分 类 号：TM615[电气工程—电力系统及自动化]