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

Karlsson, Per LU ; Björnstedt, Johan LU and Ström, Magnus (2007) In EPE Journal 17(3). p.38-46
Abstract
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
three-converter stand-alone system, stand-alone converter operation, reactive power sharing, active power sharing, power electronic converters, droop control, voltage control, constant power loads, frequency control, rotating generators, three-converter distributed generation system, parallel-connected converters
in
EPE Journal
volume
17
issue
3
pages
9 pages
publisher
EPE Association
external identifiers
  • wos:000252189800006
  • scopus:37649009907
ISSN
0939-8368
language
English
LU publication?
yes
id
8e7e78d8-b773-4f61-9b1d-c618b5c4fb5b (old id 616304)
alternative location
https://www.epe-association.org/epe/users/documents.download.php?type=view&documents_id=8997
date added to LUP
2007-11-25 13:06:53
date last changed
2017-01-01 06:53:22
@inproceedings{8e7e78d8-b773-4f61-9b1d-c618b5c4fb5b,
  abstract     = {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.},
  author       = {Karlsson, Per and Björnstedt, Johan and Ström, Magnus},
  booktitle    = {EPE Journal},
  issn         = {0939-8368},
  keyword      = {three-converter stand-alone system,stand-alone converter operation,reactive power sharing,active power sharing,power electronic converters,droop control,voltage control,constant power loads,frequency control,rotating generators,three-converter distributed generation system,parallel-connected converters},
  language     = {eng},
  number       = {3},
  pages        = {38--46},
  publisher    = {EPE Association},
  title        = {Stability of voltage and frequency control in distributed generation based on parallel-connected converters feeding constant power loads},
  volume       = {17},
  year         = {2007},
}