电气传动2019，Vol.49Issue(6)：49-53,5.DOI:10.19457/j.1001-2095.dqcd18769
电压扰动情况光伏并网逆变器控制策略研究
Control Strategy Research on Photovoltaic Grid Inverter Under Voltage Disturbance Condition
摘要
Abstract
In view of the three-level photovoltaic grid inverter,a fixed proportional resonance control strategy was put forward,the grid current harmonic suppression was implemented under power grid voltage disturbance situation. First of all,in the case of grid disturbances,proportional resonant controller was adopted to realize low current harmonic suppression,grid current control could be achieved accurately. Aiming at the midpoint balance problems of the three-level inverter,PI controller was put forward to realize neutral voltage balance control of the three-level inverter. The carrier modulation method was adopted to avoid the space vector modulation complex calculations. Simulation and experimental results show that three-level inverter track the given current fast under the disturbance situation.关键词
三电平逆变器/电网电压扰动/比例积分谐振/中点电位平衡Key words
three-level inverter/grid voltage disturbance/proportional integral resonance/neutral point potential balance分类
信息技术与安全科学引用本文复制引用
王娜,党淼..电压扰动情况光伏并网逆变器控制策略研究[J].电气传动,2019,49(6):49-53,5.基金项目
国家自然科学基金(61673165) （61673165）
湖南省自然科学基金(2017JJ4024) （2017JJ4024）
湖南省教育厅开放基金(15k036) （15k036）
湖南省重点实验室(2016TP1018) （2016TP1018）
