电器与能效管理技术Issue(4)：38-44,7.DOI:10.16628/j.cnki.2095-8188.2024.04.005
I型三电平储能变流器设计
Design of Type I Three-Level Energy Storage Converter
摘要
Abstract
With the rapid development of new energy generation,the issue of intermittency and uncertainty in the output power of new energy generation is becoming increasingly prominent.In order to enhance the grid's ability to absorb new energy,a type I three level energy storage converter has been designed.On the basis of in-depth analysis of its working principle,a mathematical model was constructed and a constant current charging and discharging control strategy was provided.In response to the problem of midpoint potential imbalance in the three level energy storage converter,a space vector pulse width modulation(SVPWM)algorithm with variable distribution factor was proposed to achieve rapid response to midpoint potential fluctuations.The experimental results of prototype show that under constant current charging and discharging control strategy,the designed prototype has good steady-state and transient performance under grid connection conditions.The used SVPWM algorithm with variable allocation factor can quickly suppress midpoint potential fluctuations and has a significant inhibitory effect.关键词
新能源/三电平储能变流器/中点电位平衡控制/空间矢量脉冲宽度调制Key words
new energy/three-level energy storage converter/midpoint potential balance control/space vector pulse width modulation(SVPWM)分类
信息技术与安全科学引用本文复制引用
李进伟,李堂,毛行奎,张哲..I型三电平储能变流器设计[J].电器与能效管理技术,2024,(4):38-44,7.基金项目
国家自然科学基金项目(51207025,52107183) （51207025,52107183）
