摘要
针对电池容量衰减对共享储能电站经济效益的影响,提出计及电池健康状态变化的共享储能容量功率配置方案。分析现有共享储能服务冷热电联供(combined cooling heating and power,CCHP)微网系统的商业模式盈利方式,并以寿命周期内的储能电站成本最低为优化目标,构建考虑电池寿命的双层规划模型;通过雨流法计算复杂充放电过程储能电池放电深度,并建立储能电池健康容量衰减模型;利用外层模型求解考虑电池容量衰减的共享储能配置问题,利用内层模求解共享储能参与下的CCHP系统设备运行优化问题,通过内层模型Karush-Kuhn-Tucher(KKT)条件对模型进行转化并迭代求解。算例分析验证了配置方案的可行性,证明所提共享储能配置方案较未考虑电池容量衰减的配置方案更具应用前景。
Aiming at the impact of battery capacity attenuation on the economic benefits of shared energy storage power stations,a shared energy storage capacity power allocation scheme that takes into account changes in battery health status is proposed.This paper analyzes the profit model of the existing shared energy storage service combined cooling,heating and power(CCHP)business model,and takes the lowest cost of the energy storage power station in the life cycle as the optimization goal,and constructs a two-layer planning model considering the battery life.It uses the rain flow method to calculate the discharge depth of the energy storage battery in the complex charging and discharging process,and establishes a healthy capacity decay model of the energy storage battery.It also uses the outer model to solve the shared energy storage configuration problem considering the battery capacity decay,and the inner model to solve the problem of equipment operation optimization in the case of shared energy storage participation.The model is transformed and iteratively solved through the Karush-Kuhn-Tucher(KKT)condition of the inner model at the same time.The feasibility of the configuration scheme is verified by numerical example analysis,which proves that the proposed shared energy storage configuration scheme has more application prospects than the configuration scheme that does not consider battery capacity attenuation.
作者
谢雨龙
李黎
杨凯
XIE Yulong;LI Li;YANG Kai(School of Electrical and Electronic Engineering,Huazhong University of Science&Technology,Wuhan,Hubei 430074,China)
出处
《广东电力》
2022年第5期16-24,共9页
Guangdong Electric Power
基金
国家重点研发计划项目(2018YFB0904803)。
关键词
共享储能
冷热电联供系统
雨流法
双层优化
KKT法
综合优化配置
shared energy storage
combined cooling heating and power(CCHP)system
rain flow method
double-layer optimization
KKT method
comprehensive optimization configuration
作者简介
谢雨龙(2000),男,辽宁本溪人,主要研究方向为电气工程;通信作者:李黎(1976),男,湖北荆州人,研究员,博士生导师,博士,研究方向为电气工程,E-mail:leeli@hust.edu.cn;杨凯(1976),男,湖北汉川人,教授,博士,研究方向为电气工程,E-mail:yk@hust.edu.cn。
