Control Strategy of Grid-connected Inverter Based on Multistage Hysteresis Regulator Under Asymmetrical Grid Conditions

被引：0
|
作者：
Du Chenxi [1 ]
Du Xiaodong [2 ]
Xu Zhendong [1 ]
机构：
[1] Hefei Univ Technol, Sch Elect Engn & Automat, Hefei 230009, Peoples R China
[2] Hefei Univ, Basic Teaching & Expt Dept, Hefei 230601, Peoples R China
来源：
PROCEEDINGS OF THE 35TH CHINESE CONTROL CONFERENCE 2016 | 2016年
关键词：
asymmetrical grid; grid-connected inverter; multistage hysteresis regulator; CURRENT CONTROL SCHEME; VOLTAGE;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The effective control of a grid-connected inverter under asymmetrical grid condition is able to enhance the grid-connected operation capability of the inverter. This paper studies a control scheme of 3-phase grid-connected inverter with multistage hysteresis current regulators on the alpha beta reference frame. Under the condition of asymmetrical grid, the celerity of the multistage hysteresis is fully taken advantage of to control both positive and negative current component directly without any decomposition and grid -connected current requirements are satisfied by controlling negative sequence current of the grid to zero, suppressing active or reactive power second pulsations. Three control targets are respectively achieved through simulation.Simulation results demonstrate the effectiveness and correctness of the method.
引用
收藏
页码：8539 / 8543
页数：5
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