A Novel Current Control Method for Grid Connected Photovoltaic System

被引：0
|
作者：
Yu Jingrong [1 ]
Su Mei [1 ]
Sun Yao [1 ]
机构：
[1] Cent S Univ, Sch Informat Sci & Engn, Changsha, Hunan, Peoples R China
来源：
2011 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) | 2011年
关键词：
grid-connected PV system; improved repetitive control; immune feedback; REPETITIVE CONTROL; CONVERTERS; TRACKING;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A novel current control method based on improved repetitive control (RC) and fuzzy reasoning immune feedback for single-stage single-phase grid-connected (SSSPGC) photovoltaic (PV) system is proposed. Low-pass filter with zero-phase-shift is employed for delay part of RC to make better tradeoff between robustness and performance. Then the compensation part based on linear lead compensation function and a low-pass filter is designed so that the control method could be independent on the precise model of the plant. At last, an immune feedback controller based on fuzzy reasoning is presented to assure suitable amount of stability margin and better dynamic performance. A prototype of SSSPGC PV system is developed, and experimental results of the prototype under steady-state conditions verify the correctness and effectiveness of the proposed current control method.
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页数：4
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