电池储能系统两模式协调控制策略  

Two-mode Coordinated Control Strategy for Battery Energy-storage System

作　　者：魏炜[1] 陈晗 朱洁[2] 徐弢[1] 赵贺[2] 李子衿 WEI Wei;CHEN Han;ZHU Jie;XU Tao;ZHAO He;LI Zijin(Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China;State Grid Beijing Electric Power Company,Beijing 100031,China)

机构地区：[1]天津大学智能电网重点实验室,天津300072 [2]国网北京市电力公司,北京100031

出　　处：《电力系统及其自动化学报》2021年第2期116-121,共6页Proceedings of the CSU-EPSA

基　　金：国家重点研发计划资助项目(2016YFB0900500,2016YFB0900503)。

摘　　要：针对混合储能存在运行模式较为固定、利用水平有待提高的问题,基于一种分布式光伏-电池储能联合系统典型结构,提出了一种电池储能系统平抑波动-峰谷套利两模式协调控制策略。利用电池储能系统可运行于不同模式的特点,根据光伏发电功率中频分量的波动特性,对电池储能系统各电池组串的运行模式在平抑波动和峰谷套利之间进行动态分配和灵活调控,满足系统运行需求的同时,有效提高电池储能系统的利用水平。最后,通过典型算例对所提控制策略的有效性进行了验证。Aimed at the problems in a hybrid energy-storage system(HESS)such as fixed operating mode and insufficient utilization level,a two-mode(i.e.,smoothing fluctuation and peak-valley arbitrage)coordinated control strategy for battery energy-storage system(BESS)is proposed in this paper,which is based on a typical structure of distributed photovoltaic(PV)-BESS joint system.Considering that the BESS can operate in different modes,the operating mode of each battery series in the BESS is dynamically distributed and flexibly regulated between these two modes according to the fluctuation characteristics of the intermediate-frequency component of PV power.As a result,the operating requirements for the system are satisfied,and the utilization level of BESS is improved effectively at the same time.Finally,the validity of the proposed control strategy is verified by a typical numerical example.

关 键 词：电池储能系统 两模式协调控制策略 平抑波动 峰谷套利 

分 类 号：TM615[电气工程—电力系统及自动化]