电力系统及其自动化学报2018，Vol.30Issue(1)：109-114,150,7.DOI:10.3969/j.issn.1003-8930.2018.01.017
混合储能在电力电子变压器中的应用
Application of Hybrid Energy Storage to Power Electronic Transformer
摘要
Abstract
With the consideration that power electronic transformer(PET)cannot efficiently deal with the voltage inter-ruption or voltage sag of power grid,a hybrid energy storage system(HESS)of battery and super-capacitor is applied to PET.HESS is connected to the DC link in PET by bidirectional DC converter,and when voltage interruption or voltage sag occurs,HESS can maintain PET's low DC voltage to be stable and provide power to loads.The operation modes of HESS are analyzed,the control strategy of DC converter is designed,and the charging and discharging process of bat-tery is optimized by super-capacitor. Results show that PET with HESS can realize the function of voltage compensa-tion and power compensation,which can eliminate the impact of voltage interruption and voltage sag on loads,and en-sure the safe and stable operation of electrical equipment.关键词
蓄电池/超级电容/混合储能系统/电压中断/电压跌落/电力电子变压器Key words
battery/super capacitor/hybrid energy storage system(HESS)/voltage interruption/voltage sag/power elec-tronic transformer(PET)分类
信息技术与安全科学引用本文复制引用
米根锁,魏宏斌..混合储能在电力电子变压器中的应用[J].电力系统及其自动化学报,2018,30(1):109-114,150,7.基金项目
甘肃省自然科学基金资助项目(1310RJZA046) （1310RJZA046）
