Reduction of positive feedback gain on Anti-islanding method based on frequency

Author

Aguiar, Cassius R. ; Goncalves, Amilcar F. Q. ; Bastos, Renan F. ; Pozzebon, Giovani G. ; Monteiro, J.R.B.A. ; Machado, Ricardo Q.

Author_Institution

Univ. of Sao Paulo, Sao Carlos, Brazil

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

7795

Lastpage

7800

Abstract

This paper presents a study to reduce the positive feedback gain in Anti-islanding detection methods based on frequency positive feedback. The main idea is to reduce the injection of disturbances at the point of common coupling (PCC) during the grid-connected operation. This proposal refers to the closed-loop frequency adjustment of the synchronization algorithm PLL (Phase Locked Loop). Firstly, is presented the anti-islanding method used in this work and introduced the controller design of the PLL algorithm for islanding detection. In order to evaluate the paper, simulation and experimental results are shown to support these statements.

Keywords

closed loop systems; control system synthesis; distributed power generation; feedback; phase locked loops; power distribution faults; power generation control; power grids; power system interconnection; synchronisation; PCC; PLL algorithm; anti-islanding method; closed loop frequency adjustment; controller design; disturbance reduction; frequency positive feedback; grid-connected operation; phase locked loop; point of common coupling; positive feedback gain reduction; synchronization algorithm; Distributed Generation; Islanding Detection; PLL;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6700434

Filename

6700434