Name
Title | ||
|---|---|---|
Improvement of grid current performance for grid-connected DG under distorted grid voltage and nonlinear local loads |
Abstract | ||
|---|---|---|
The presence of grid voltage distortion and nonlinear local load are badly impact on the performance of grid-connected distributed generation (DG). This paper introduces an enhanced current control strategy to improve the grid current performance of grid-connected DG under such scenario. The proposed current controller is designed in the synchronous reference frame and composed of a proportional-integral (PI) controller and three resonant controllers tuned at 6n (n = 1, 2, 3) of fundamental frequency. The proposed controller is operated without demand of local load current measurement, which means that no extra hardware is required to achieve good performance of the grid current. The DG with the proposed current controller can transfer a sinusoidal current into the utility grid despite the presence of distorted grid voltage and/or nonlinear local load. Various test cases are considered and experimental results are given to verify the effectiveness of the proposed current controller. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/ISIE.2014.6865031 | ISIE |
Keywords | Field | DocType |
pi control,distributed power generation,electric current control,power distribution control,power generation control,power grids,pi controller,current control,grid current performance,grid voltage distortion,grid-connected dg,grid-connected distributed generation,nonlinear local loads,proportional-integral controller,resonant controllers,sinusoidal current,synchronous reference frame,utility grid,current controller,distributed generation,nonlinear load,resonant controller,nonlinear distortion,frequency control,harmonic analysis,resonant frequency | Reference frame,Control theory,Fundamental frequency,Nonlinear system,Control theory,Electronic engineering,Control engineering,Distributed generation,Engineering,Open-loop controller,Distortion,Grid | Conference |
ISSN | Citations | PageRank |
2163-5137 | 0 | 0.34 |
References | Authors | |
4 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Quoc-Nam Trinh | 1 | 22 | 3.62 |
| Hong-Hee Lee | 2 | 363 | 42.82 |