一种用于光储联动系统的复合型储能控制策略研究  

Research on Compound Energy Storage Control Strategy for PVstorage Linkage System

作　　者：程婷婷 王智高 范伟强 CHENG Tingting;WANG Zhigao;FAN Weiqiang(Xi’an High Voltage Apparatus Institute Co.,Ltd.,Xi’an 710077,China)

机构地区：[1]西安高压电器研究院股份有限公司,西安710077

出　　处：《电力电容器与无功补偿》2024年第6期92-97,107,共7页Power Capacitor & Reactive Power Compensation

摘　　要：针对光伏并网系统中输出功率随机性、波动性的特点,单一储能形式无法同时满足功率型、能量型二者共同的需求。本文提出一种基于超级电容器SOC值的复合储能控制策略,用于光伏发电系统,实现光伏输出平滑并网。首先,分析了复合储能对光伏并网稳定性的作用;其次详细介绍了基于超级电容器SOC值的复合储能控制策略;最后在Matlab/Simulink搭建仿真模型,对光伏平滑并网及恒功率并网进行仿真,仿真结果验证了复合储能控制策略的可行性,能够很好的配合光伏并网,在“平滑波动”和“削峰填谷”中作用突出。As for the randomness and fluctuation of output power in gridconnected photovoltaic system,a single energy storage form cannot meet simultaneously the common needs of both power type and energy type.In this paper,a kind of compound energy storage control strategy based on SOC value of super capacitor for photovoltaic power generation system is proposed so to achieve smooth grid connection of photovoltaic output.Firstly,the effect of compound energy storage on the stability of PV grid connection is analyzed.Then,the compound energy storage control strategy based on SOC value of super capacitor is introduced in detail.Finally,a simulation model is set up in Matlab/Simulink to simulate photovoltaic smooth gridconnection and constant power gridconnection.The feasibility of the composite energy storage control strategy is verified by the simulation result,which can cooperate well with photovoltaic gridconnection and play a prominent role in smooth fluctuation and peak cutting and valley filling.

关 键 词：光伏并网 复合储能 控制策略 平滑并网 

分 类 号：TM615[电气工程—电力系统及自动化]