摘要
研究了一种用于储能的T型三电平能量转换系统,该系统以三相桥式结构为电路拓扑,可实现能量在电池与电网间的双向流动。阐述了T型三电平变流器的工作原理和控制算法,设计了一台100 kW全数字控制实验样机,验证了理论分析的正确性。实验结果表明,该变流器系统功率因数可控,直流侧电压平衡,交流侧电压电流谐波小,满足储能系统的相关技术要求。
A kind of three-level T-type power conversion system for battery storage is studied.This system takes the three-phase bridge structure as circuit topology ,interacting energy with the grid in two directions.The working princi- ple and the control algorithm of three-level T-type converter are studied.And by constructing a full digital controlled 100 kW prototype, the theory and method are comprehensively validated.The results show that the converter works with controllable power factor, balancing DC voltage and small harmonic voltage and current, meeting the technical re- quirements of power conversion system for the battery storage system.
出处
《电力电子技术》
CSCD
北大核心
2014年第1期77-78,共2页
Power Electronics
基金
国家自然科学基金(51307110)~~
关键词
能量转换系统
工作原理
控制算法
power conversion system
working principle
control algorithm
