基于区域控制偏差的电池储能参与电网二次调频的容量配置方法  

Capacity allocation of BESS in secondary frequency regulation based on area control error

作　　者：于琳琳 司瑞华 常青青 王传捷 孟高军[2] Yu Linlin;Si Ruihua;Chang Qingqing;Wang Chuanjie;Meng Gaojun(State Grid Henan Electric Power Economic and Technological Research Institute,Zhengzhou 450000,China;School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]国网河南省电力公司经济技术研究院,河南郑州450000 [2]南京工程学院电力工程学院,江苏南京211167

出　　处：《可再生能源》2023年第8期1129-1136,共8页Renewable Energy Resources

基　　金：国网河南省电力公司科技项目(5217L0220008)。

摘　　要：文章以电池储能系统参与电力系统二次调频为研究对象,提出了一种基于小波变换的储能参与电网二次调频容量优化配置方法。区别于传统容量配置方法中储能系统和火电机组采用定比例功率分配方法,该容量配置方法采用小波变换对初始区域控制偏差(Area Control Error,ACE)信号进行分解重组和再分配,将高频信号分配给储能系统,将低频信号分配给火电机组;然后建立储能参与电网调频的成本-效益模型,分析不同重组点下的调频效果指标和净效益,得出最终的容量配置结果;最后,基于实测的ACE信号验证了配置结果的合理性和有效性。The research object of this paper is the participation of BESS in secondary frequency modulation of power system,an optimal allocation method of energy storage participating in secondary frequency modulation capacity of power grid based on wavelet transform is proposed.Different from the traditional capacity allocation method in which the energy storage system and thermal power unit use a fixed-proportional power allocation method,this capacity allocation method uses wavelet transform to decompose and redistribute the initial ACE signal,and distributes the high frequency part to the energy storage system and the low frequency signal to the thermal power unit.Then,a cost-benefit model of energy storage participating in grid frequency regulation was established,and the frequency regulation effect indicators and net benefits were analyzed at different reorganization points,and the final capacity allocation results were obtained.Finally,the rationality and validity of the configuration results are verified based on the measured ACE signal.

关 键 词：电池储能 二次调频 区域控制偏差 容量配置 

分 类 号：TK-9[动力工程及工程热物理] TM732[电气工程—电力系统及自动化]