Title :
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
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;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6700434
