Paper Info
Title
A repetitive control scheme to improve performance of UPQC under distorted source and nonlinear load conditions
Abstract
This paper proposes an enhanced control strategy for three-phase unified power quality conditioners (UPQCs) under the distorted source and nonlinear load conditions. The proposed controller consists of a proportional-integral and a repetitive controller (RC), which is developed on both the series and the shunt APFs of the UPQC to compensate (6n±1) (n=1, 2, 3...) harmonic voltages in distorted source voltage and those harmonic currents produced by nonlinear loads. As a result, the load voltage and the supply current are compensated to be sinusoidal. In the proposed RC, the delay time is reduced to be one-sixth of the fundamental period which is much shorter than that of the traditional RC, i.e., one fundamental period. Hence, the proposed RC provides a much faster dynamic response compared to the traditional RC. The proposed control strategy is analyzed and design of the RC for the UPQC is presented in detail. The feasibility of the proposed control strategy is verified through simulations.
Year
DOI
Venue
2012
10.1109/ASSCC.2012.6523304
A-SSCC
Keywords
DocType
Citations 
power system control,power system harmonics,upqc,distorted source voltage,harmonic voltages,nonlinear load conditions,repetitive control scheme,repetitive controller,unified power quality conditioners,unified power quality conditioner (upqc),harmonic compensation,power quality
Conference
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Quoc-Nam Trinh1223.62
Hong-Hee Lee236342.82