协同考虑调频性能及电池寿命的火储联合系统分层控制策略  

Hierarchical Control Strategy of Combined Fire Storage System Regarding Frequency Modulation Performance and Battery Life

作　　者：张卓远 范志强[2] 焦晓峰[2] 王高锋 张学镭[1] ZHANG Zhuoyuan;FAN Zhiqiang;JIAO Xiaofeng;WANG Gaofeng;ZHANG Xuelei(School of Energy Power and Mechenical Engineering,North China Electric Power University,Baoding 071003,China;Inner Mongolia Power Research Institute,Hohhot 010020,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003 [2]内蒙古电力科学研究院,呼和浩特010020

出　　处：《华北电力大学学报（自然科学版）》2024年第6期76-83,共8页Journal of North China Electric Power University：Natural Science Edition

摘　　要：随着新能源大力发展,仅通过提升火电机组的调频能力难以满足日益增长的电力系统调频需求。为提高机组自动发电控制(automatic generation control,AGC)响应能力,提出一种协同考虑调频性能及电池寿命的火储联合系统分层控制策略。上层控制策略以提升AGC响应能力为目标,将火储联合系统参与调频的过程划分为响应初期、爬坡期及稳定期3个时段,分别计算不同时段混合储能系统的目标出力。下层控制策略以减少储能电池寿命损耗为目标,建立了混合储能系统目标出力的分配模型。基于MATLAB/SIMULINK对控制策略进行了仿真计算,分层控制策略相较于常规控制策略的调频效果提升了14.2%,电池寿命损耗下降了37.3%,火储联合系统AGC服务补偿收益提升了23%,大幅增强了火电机组的AGC响应能力,提高了电站运行的经济性。With the vigorous development of new energy,it is difficult to meet the increasing frequency modulation demand of power system only by improving the frequency modulation capacity of thermal power units.In order to improve the response ability of automatic Generation control(AGC),we proposed a hierarchical control strategy of combined fire storage system regarding frequency modulation performance and battery life.The upper level control strategy aims at improving AGC response capacity,we divided the frequency modulation process of the combined fire storage system into three periods:initial response period,climbing period and stable period,and calculated the target output of the hybrid energy storage system in different periods.The lower level control strategy aims at reducing the life loss of energy storage battery,and we established the target output distribution model of hybrid energy storage system.The control strategy was simulated and calculated based on MATLAB/SIMULINK.Compared with the conventional control strategy,the frequency modulation effect of the layered control strategy was increased by 14.2%,the battery life loss was decreased by 37.3%,and the AGC service compensation income of the combined fire and storage system was increased by 23%,which greatly enhance the AGC response ability of thermal power units and improve the economic efficiency of power station operation.

关 键 词：燃煤电站 混合储能系统 控制策略 AGC性能指标 电池寿命损耗 

分 类 号：TM621[电气工程—电力系统及自动化]