中国电力2024，Vol.57Issue(6)：78-89,12.DOI:10.11930/j.issn.1004-9649.202311047
基于MMC的超级电容与蓄电池混合储能系统及其混合同步控制策略
MMC Based Super Capacitor and Battery Hybrid Energy Storage System and Hybrid Synchronous Control Strategy
摘要
Abstract
To meet the requirements of energy storage system to provide inertia and primary frequency regulation for centralized configuration and optimal control of multiple energy storage media,an overall hybrid synchronous control(HSC)strategy is proposed for modular multilevel converter(MMC)based hybrid energy storage system(HESS).The modular design method is adopted for MMC-HESS,where the super capacitors(SC)and batteries are placed in the DC bus side and in the sub-module(SM)respectively,which has advantages of high power density and high energy density.The topology and working principle of HESS are analyzed,and the HSC strategy is used to provide system inertia and primary frequency regulation,as well as the synchronization capability and isolation control function for fault current limiting.The filter is employed for distributing power of energy storage,and the state of charge(SOC)balancing control is used for battery energy regulation.Finally,based on the hardware-in-the-loop experimentation platform,the MMC-HESS topology and control strategy proposed in this paper are verified.The experimental results indicate that the proposed HSC-MMC-HESS is able to provide inertia and frequency support capability,and switch flexibly between fault current-limiting,normal grid-connection and island operation,giving a full play to the comprehensive advantages of hybrid energy storage.The application of HSC-MMC-HESS has good prospects in medium-voltage distribution network.关键词
模块化多电平换流器/超级电容/蓄电池/混合储能系统/混合同步控制/荷电状态均衡Key words
modular multilevel converter/super capacitor/battery/hybrid energy storage system/hybrid synchronous control/state of charge balancing引用本文复制引用
曹宇,胡鹏飞,蔡婉琪,王曦,江道灼,梁一桥..基于MMC的超级电容与蓄电池混合储能系统及其混合同步控制策略[J].中国电力,2024,57(6):78-89,12.基金项目
国家自然科学基金资助项目(面向中压主动配电网的新型混合储能系统及其模型预测控制研究,52007167) （面向中压主动配电网的新型混合储能系统及其模型预测控制研究,52007167）
浙江省自然科学基金资助项目(基于MMC的新型混合储能系统及其控制策略研究,LQ21E070004). This work is supported by National Natural Science Foundation of China(Novel Hybrid Energy Storage System and Its Model Predictive Control Method for Medium-Voltage Active Distribution Network,No.52007167)and Natural Science Foundation of Zhejiang Province(Modular Multilevel Converter Based Novel Hybrid Energy Storage System and Its Control Strategy,No.LQ21E070004). （基于MMC的新型混合储能系统及其控制策略研究,LQ21E070004）
