Voltage Control Support and Coordination between Renewable Generation Plants in MV Distribution Systems

Lennart Petersen, Florin Iov, Anca Daniela Hansen, Müfit Altin

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Abstract

This paper focusses on voltage control support and coordination between renewable generation plants in medium voltage distribution systems. An exemplary benchmark grid in Denmark, including a number of flexible ReGen plants providing voltage control functionality, is used as a base case. First, voltage sensitivity analysis is performed to quantify node voltage variations due to injections of reactive power for given operational points of the network. The results are then used to develop an adaptive voltage droop control method, where various droop settings are allocated to each ReGen plant according to the sensitivity indices of corresponding node voltages and the location of respective ReGen plants in the distribution system. Case studies are performed in time-domain to analyze the impact of voltage fluctuations due to active power variations of ReGen plants in order to verify the performance of the obtained voltage droop settings. The main outcome of this study is the provision of a generic guidance on how to coordinate the voltage stability support capabilities of ReGen plants in a distribution system with large ReGen penetration in order to ensure a resilient voltage controlled distribution system.
Original languageEnglish
Title of host publicationProceedings of the 15th Wind Integration Workshop
EditorsUta Betancourt, Thomas Ackermann
Number of pages8
Publication date2016
ISBN (Print)978-3-9816549-4-3
Publication statusPublished - 2016
Event15th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants - Vienna, Austria
Duration: 15 Nov 201617 Nov 2016
Conference number: 15
http://windintegrationworkshop.org/vienna2016/

Conference

Conference15th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants
Number15
CountryAustria
CityVienna
Period15/11/201617/11/2016
Internet address

Bibliographical note

This paper was presented at the 15th Wind Integration Workshop and published in the workshop's proceedings

Keywords

  • Voltage droop control
  • Sensitivity analysis
  • Distribution system
  • Renewable energy sources
  • Wind power plants
  • PV plants
  • Coordinated control
  • Ancillary services

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