Evaluation of different positive sequence detection structures applied to grid-connected systems

Author

Jamarani, Mohammad ; Abrishamifar, Adib ; Pichan, Mohammad ; Fazeli, Mehdi

Author_Institution

Electr. Converters & Power Syst. Dept., IRIEE, Tehran, Iran

fYear

2014

fDate

5-6 Feb. 2014

Firstpage

126

Lastpage

130

Abstract

Effects of three different positive sequence detector structures including qPLL, EPLL, and SOGI-PLL on performance of a 10KVA shunt active filter are investigated in this paper. The evaluation is performed through simulation of practical test conditions including balanced and unbalanced grid voltage, frequency variation, and harmonic polluted grid voltage. These studies lead to recognizing the SOGI-PLL as a proper method for grid-connected power applications, especially for the ones with digital control systems.

Keywords

active filters; digital control; phase locked loops; power grids; signal detection; EPLL; SOGI-PLL; apparent power 10 kVA; balanced grid voltage; digital control systems; frequency variation; grid-connected systems; harmonic polluted grid voltage; positive sequence detection structures; qPLL; shunt active filter; unbalanced grid voltage; Frequency conversion; Nonlinear distortion; digital control; grid-connection; positive sequence detector;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drive Systems and Technologies Conference (PEDSTC), 2014 5th

Conference_Location

Tehran

Type

conf

DOI

10.1109/PEDSTC.2014.6799356

Filename

6799356