电气传动2019，Vol.49Issue(4)：28-32,5.DOI:10.19457/j.1001-2095.dqcd18582
三电平光伏并网发电系统漏电流抑制研究
Leakage Current Suppression for Grid-connected Three-level Photovoltaic Generation System
叶小川1
作者信息
- 1. 四川工程职业技术学院电气信息工程系,四川 德阳 618000
- 折叠
摘要
Abstract
Aiming at the problem of leakage current and midpoint balance in non-isolated three-level photovoltaic power generation system,a finite set model predictive control method was proposed to achieve normal grid connected operation of PV grid connected inverter. The leakage current suppression was realized by two medium vectors and one zero vector. Compared with the traditional methods,the leakage current was the lowest. The three level Boost controller realized the middle point potential balance and the DC side voltage control,and the three level PV grid connected inverter realized the fast tracking control of the grid connected current. The simulation results show that the proposed control algorithm has fast tracking performance,DC side capacitance voltage balance control and leakage current suppression.关键词
三电平逆变器/模型预测控制/中点平衡控制/漏电流抑制Key words
three-level inverter/model predictive control/neutral-point potential(NP)control/leakage current suppression分类
信息技术与安全科学引用本文复制引用
叶小川..三电平光伏并网发电系统漏电流抑制研究[J].电气传动,2019,49(4):28-32,5.
