DESIGN OF ISLANDING DETECTION USING PHASE-LOCKED LOOPS IN THREE-PHASE GRID-INTERFACE POWER

M. MadhuSudhan Reddy; E.Arunakumari

DESIGN OF ISLANDING DETECTION USING PHASE-LOCKED LOOPS IN THREE-PHASE GRID-INTERFACE POWER

Authors: M. MadhuSudhan Reddy, E.Arunakumari

Unique Paper ID: 142580
Volume: 2
Issue: 4
PageNo: 121-126

Keywords: Converter stability distributed generation (DG) islanding detection phase-locked loop (PLL).

Abstract:
Phase locked loop and synchronization techniques are one of the most important issues for operating grid-interfaced converters in practical applications, which involve Distributed Power Generation Systems, Flexible AC Transmission Systems (FACTS), and High Voltage Direct Current (HVDC) Transmission, and so on.This paper proposes a systematic PLL modeling anddesign approach to evaluate different frequency-based islandingdetection methods. Two different types of PLL-based islandingdetection solution are discussed, accounting for a majority ofthe existing methods. The first method is to modify the PLL toconstantly move the stable equilibrium point. The second methodis to modify the PLL small-signal characteristics to achieve amonotonic instability behavior under the islanded conditions.The design procedures of these methods are presented using theproposed PLL modeling approach.

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Cite This Article

ISSN: 2349-6002
Volume: 2
Issue: 4
PageNo: 121-126

DESIGN OF ISLANDING DETECTION USING PHASE-LOCKED LOOPS IN THREE-PHASE GRID-INTERFACE POWER

Available:https://ijirt.org/Article?manuscript=142580

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