Coordinated voltage control in distribution networks including several distributed energy resources

Anna Kulmala, Sami Repo, Pertti Jarventausta

Research output: Contribution to journalArticleScientificpeer-review

154 Citations (Scopus)

Abstract

Connecting distributed generation (DG) to weak distribution networks can often cause voltage rise problems. Traditionally, these voltage rise problems have been mitigated by passive methods such as reinforcing the network. This can, however, lead to high connection costs of DG. The connection costs can in many cases be lowered if active voltage control methods are used instead of the passive approach. In this paper, two coordinated voltage control algorithms suitable for usage in distribution networks including several distributed energy resources are proposed and studied. The first algorithm uses control rules to determine its control actions and the second algorithm utilizes optimization. The operation of the implemented algorithms is, at first, studied using time domain simulations. Thereafter, the network effects and costs of both algorithms are compared using statistical distribution network planning and also practical implementation issues are discussed.

Original languageEnglish
Article number6805675
Pages (from-to)2010-2020
Number of pages11
JournalIEEE Transactions on Smart Grid
Volume5
Issue number4
DOIs
Publication statusPublished - Jul 2014
MoE publication typeNot Eligible

Keywords

  • Distributed power generation
  • power distribution
  • power system management
  • reactive power control
  • voltage control

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