摘要
为提高退役动力电池的利用率,降低储能系统成本,将退役电池梯次利用于对电池使用工况逐步温和的电动汽车充电站场景及家庭储能系统场景。在多储能场景下分析场景更迭时梯次电池容量保持率的变化以及梯次电池供求关系的变化对储能系统净收益的影响,通过优化各梯次储能系统的配置容量,以多储能场景年净收益最大为目标函数,构建了退役电池在多储能场景下梯级利用的经济性评估模型,并采用遗传算法求解模型。算例表明,退役电池在多储能场景下的梯级利用相较于其在单一场景中的二次利用可更大限度地发挥退役电池的残余价值,提高储能系统的经济效益。
In order to improve the utilization rate of retired power batteries and reduce the cost of energy storage system,the cascade utilization of retired batteries with performance degradation is applied to real scenarios including electric vehicle charging stations and home energy storage systems.When changing scenes,the impact of change in the retention rate and supply and demand relationship of second-use batteries on the net income of the energy storage system is analyzed in multiple energy storage scenarios.By optimizing the capacity allocation of the second-use energy storage system,an economic evaluation model for the cascade utilization of the retired batteries in the multiple energy storage scenarios is established with the goal of maximizing annual net profit from the multiple energy storage scenarios,and genetic algorithm is used to solve the model.The example analysis shows that,compared to its secondary use in a single scenario,the cascade utilization of the retired batteries in the multiple energy storage scenarios can maximize the residual value of the retired batteries and improve the economic benefits of the energy storage system.
作者
许欣慧
舒征宇
李世春
XU Xinhui;SHU Zhengyu;LI Shichun(College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,China)
出处
《智慧电力》
北大核心
2020年第12期58-64,共7页
Smart Power
基金
国家自然科学基金资助项目(51907104)
湖北省自然科学基金项目(2019CFB207)。
关键词
退役电池
梯级利用
梯次储能系统
经济效益
retired battery
cascade utilization
second-use energy storage system
economic benefits
