南方电网技术2026，Vol.20Issue(7)：1-10,21,11.DOI:10.13648/j.cnki.issn1674-0629.2026.07.001
级联H桥电池储能系统SoC均衡与暂态电压冲击抑制控制策略
SoC Balancing and Transient Voltage Surge Suppression Control Strategy for Cascaded H-Bridge Battery Energy Storage Systems
摘要
Abstract
State of charge(SoC)balancing is the key to achieve dynamic energy balancing among multiple modules in cascaded H-bridge battery energy storage systems(BESS),but traditional SoC balancing techniques could exacerbate DC-side transient voltage surges.This paper proposes a compound control strategy integrating SoC balancing and voltage surge suppression.Firstly,a mathematical model of battery energy SoC and output power is established,and a power balancing coefficient is constructed to integrate SoC balancing objective into charge and discharge control.An adaptive power balancing coefficient control method is proposed,which achieves SoC balancing while satisfying the rated power output of the system.Furthermore,addressing the issue of excessive DC-side voltage fluctuations caused by sudden changes in grid-side power,a closed-loop transfer function model of the DC/DC converter is established,revealing the mechanism by which key parameters affect transient respons.And voltage surge suppres-sion is achieved through a method based on capacitor voltage feedforward.Finally,simulations and hardware-in-loop experiments verify the superior performance of the proposed control strategy.关键词
电池储能系统/级联H桥/荷电状态均衡/电压冲击抑制Key words
battery energy storage system/cascaded H-bridge/state of charge balancing/voltage surge suppression分类
信息技术与安全科学引用本文复制引用
王顺亮,段宇轩,焦宁,马俊鹏,张芮,刘天琪..级联H桥电池储能系统SoC均衡与暂态电压冲击抑制控制策略[J].南方电网技术,2026,20(7):1-10,21,11.基金项目
国家自然科学基金青年项目(62403339). Supported by the Young Scientists Fund of the National Natural Science Foundation of China(62403339). （62403339）
