Effect of the Inner Current Loop on the Voltage Regulation for Three-Phase Photovoltaic Inverters

被引：0
|
作者：
Urtasun, Andoni [1 ]
Sanchis, Pablo [1 ]
Marroyo, Luis [1 ]
机构：
[1] Publ Univ Navarra UPNA, Inst Smart Cities, Dept Elect Elect & Commun Engn, Pamplona, Spain
来源：
2020 IEEE 21ST WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL) | 2020年
关键词：
control design; control stability; inner current loop; photovoltaic generator; three-phase inverter;
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：
In three-phase grid-connected PV inverters, regulating the input voltage is a fundamental requirement. In order to reduce the influence of the PV non-linear behavior and ensure stability in the whole operating range, the input capacitance is currently oversized. This paper reveals the important effect of the inner current loop in the voltage stability and proposes to use a Proportional (P) controller instead of a PI controller. If tuned following the guidelines provided in this paper, the P controller makes it possible to design a stable voltage loop without increasing the input capacitance, thus reducing the converter cost.
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收藏
页码：1069 / 1075
页数：7
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