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Stability of voltage and frequency control in distributed generation based on parallel-connected converters feeding constant power loads

In English

Författare

Summary, in English

In this paper stability and dynamic properties of voltage and frequency droop control of power electronic converters are investigated for a distributed generation system. Droop control is utilized to share active and reactive power among the source converters. The voltage and frequency controllers are designed so that stand-alone converter operation feeding constant power loads performs satisfactory. These controllers are adapted to mimic the behaviour of present rotating generators connected directly to the power system, for seam-less transfer between island and grid-connected modes of operation. The target system for the analysis is a stand-alone system to which three power electronic converters and one rotating generator could be connected (Fig. 1). Small-signal and switch-mode, time-domain simulation results of a threeconverter distributed generation system facilitating stand-alone operation verify the operation. Simulation and experimental results of a three-converter stand-alone system, with and without a rotating generator present, are also included for verification.

Publiceringsår

2007

Språk

Engelska

Sidor

38-46

Publikation/Tidskrift/Serie

Epe Journal: European Power Electronics and Drives Journal

Volym

17

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

EPE Association

Ämne

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0939-8368