Avoiding adverse interactions between transformer tap changer control and local reactive power control of distributed generators

Anna Kulmala, Sami Repo, Benoît Bletterie

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

8 Citations (Scopus)

Abstract

Local reactive power control of distributed generators (DG) can be used to mitigate the voltage rise effect caused by themselves. In this paper, dynamic interactions between local voltage controllers of the DG units and transformer on load tap changers (OLTCs) are studied using time domain simulations. Studies are conducted with different control modes of DG unit and OLTC control and also secondary substation tap changers are considered. Several types of adverse interactions are identified in the simulations: unnecessary OLTC operations can occur, reactive power transfers can unnecessarily increase and consecutive tap changer operations can occur in case of cascaded OLTCs. The paper gives also some general planning guidelines to avoid the adverse interactions identified in the simulations.
Original languageEnglish
Title of host publication2016 IEEE PES Innovative Smart Grid Technologies (ISGT Europe)
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)978-1-5090-3358-4, 978-1-5090-3357-7
ISBN (Print)978-1-5090-3359-1
DOIs
Publication statusPublished - 2 Jul 2016
MoE publication typeA4 Article in a conference publication
Event2016 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT Europe 2016 - Ljubljana, Slovenia
Duration: 9 Oct 201612 Oct 2016

Publication series

SeriesIEEE PES Innovative Smart Grid Technologies Conference Europe
ISSN2165-4816

Conference

Conference2016 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT Europe 2016
CountrySlovenia
CityLjubljana
Period9/10/1612/10/16

Keywords

  • Cascaded tap changers
  • Decentralized control
  • Distributed generation
  • Distribution network dynamics
  • Voltage control

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