提升新能源电网消纳水平的混合储能系统优化控制方法  

Optimization Control Method for Hybrid Energy Storage System to Enhance the Renewable Energy Absorption Level of Power Grid

作　　者：鄂志君[1] 王桂林[2] 李振斌[1] 周昊兵 姚维平[1] 周连升[2] E Zhijun;WANG Guilin;LI Zhenbin;ZHOU Haobing;YAO Weiping;ZHOU Liansheng(State Grid Tianjin Electric Power Company,Tianjin 300010,China;Electric Power Research Institute,State Grid Tianjin Electric Power Company,Tianjin 300384,China;Binhai Power Supply Branch,State Grid Tianjin Electric Power Company,Tianjin 300450,China)

机构地区：[1]国网天津市电力公司,天津300010 [2]国网天津市电力公司电力科学研究院,天津300384 [3]国网天津市电力公司滨海供电分公司,天津300450

出　　处：《电力系统及其自动化学报》2021年第3期132-137,共6页Proceedings of the CSU-EPSA

基　　金：国网天津市电力公司科技基金资助项目(KJ20-1-12)。

摘　　要：针对可再生新能源波动对接入电网冲击的问题,本文提出一种混合储能系统优化控制方法,该方法根据可再生能源预测误差随时间尺度变化的特点,采用混合储能系统多级协调控制策略,通过制定日前计划、日内计划与实时计划,实现不同时间尺度下储能系统合理运行和风电功率的精确跟踪。将所给模型转换为一个滚动线性规划问题,利用CPLEX求解器可实现求解。经过仿真算例验证,本文方法能够有效减少风电波动带来的影响,提高电网对风电消纳水平。Aimed at the problem of the impact of renewable energy fluctuations on power grid,an optimization control method for a hybrid energy storage system is proposed in the paper.This method employs a multi-stage coordinated con⁃trol strategy for the hybrid energy storage system based on the variation in renewable energy prediction errors with the time scale.By developing day-ahead,intra-day and real-time plans,the rational operation of the energy storage system and the accurate tracking of wind power is realized on different time scales.The proposed model is transformed into a rolling linear programming problem,which is further solved by means of a CPLEX solver.The simulation results of a nu⁃merical example show that the proposed method can effectively reduce the impact of wind power fluctuations and im⁃prove the wind power absorption level of power grid.

关 键 词：风电 混合储能系统 多级协调控制 二阶低通滤波器 

分 类 号：TM762[电气工程—电力系统及自动化]