DocumentCode
2125144
Title
A DC-link voltage control scheme for single-phase grid-connected PV inverters
Author
He, Fanbo ; Zhao, Zhengming ; Yuan, Liqiang ; Lu, Sizhao
Author_Institution
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
fYear
2011
fDate
17-22 Sept. 2011
Firstpage
3941
Lastpage
3945
Abstract
A fast DC-link voltage controller is desirable to reduce the DC-link capacitor for PV inverters. This paper proposes a method for single-phase grid-connected PV inverters to remove the ripple component from the DC-link voltage signal and a scheme to regulate the DC-link voltage based on energy-balance analysis. The proposed scheme provides excellent dynamic performance as well as a function to prevent DC-link overvoltage by limiting the input power, which is verified by both simulation and experiments.
Keywords
invertors; photovoltaic power systems; power grids; voltage control; DC-link capacitor; dynamic performance; energy-balance analysis; fast DC-link voltage control scheme; single-phase grid-connected PV inverters; Arrays; Frequency control; Inverters; Pi control; Power harmonic filters; Pulse width modulation; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Energy Conversion Congress and Exposition (ECCE), 2011 IEEE
Conference_Location
Phoenix, AZ
Print_ISBN
978-1-4577-0542-7
Type
conf
DOI
10.1109/ECCE.2011.6064305
Filename
6064305
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