DocumentCode :
1419510
Title :
Enhanced Power Quality Control Strategy for Single-Phase Inverters in Distributed Generation Systems
Author :
Bojoi, R. ; Limongi, L.R. ; Roiu, D. ; Tenconi, A.
Author_Institution :
Dipt. di Ing. Elettr., Politec. di Torino, Torino, Italy
Volume :
26
Issue :
3
fYear :
2011
fDate :
3/1/2011 12:00:00 AM
Firstpage :
798
Lastpage :
806
Abstract :
Power electronic converters are commonly used for interfacing distributed generation (DG) systems to the electrical power network. This paper deals with a single-phase inverter for DG systems requiring power quality features, such as harmonic and reactive power compensation for grid-connected operation. The idea is to integrate the DG unit functions with shunt active power filter capabilities. With this approach, the inverter controls the active power flow from the renewable energy source to the grid and also performs the nonlinear load current harmonic compensation by keeping the grid current almost sinusoidal. The control scheme employs a current reference generator based on sinusoidal signal integrator and instantaneous reactive power (IRP) theory together with a dedicated repetitive current controller. Experimental results obtained on a 4-kVA inverter prototype demonstrate the feasibility of the proposed solution.
Keywords :
active filters; distributed power generation; electric current control; invertors; power convertors; power harmonic filters; power supply quality; reactive power control; renewable energy sources; DG system; IRP theory; active power flow; distributed generation system; electrical power network; enhanced power quality control strategy; grid-connected operation; instantaneous reactive power theory; inverter control; nonlinear load current harmonic compensation; power electronic converter; power quality feature; reactive power compensation; renewable energy source; repetitive current controller; shunt active power filter capability; single-phase inverter; Active filters; Harmonic analysis; Inverters; Power harmonic filters; Power quality; Reactive power; Distributed power generation; power conditioning; power quality;
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/TPEL.2010.2103572
Filename :
5680975
Link To Document :
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