Cooperative allocation of SVR and SVC for voltage fluctuation in case of connecting distributed generators

Junjiro Sugimoto, Ryuichi Yokoyama, Goro Fujita, Yoshikazu Fukuyama

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


This paper presents a cooperative allocation method of Step Voltage Regulators (SVRs) and Static Var Compensators (SVCs) in case where some distributed generators (DGs) are installed in distribution systems. In the proposed method, the reactive tabu search (RTS) with multiple structures and functions has been applied. Firstly, the allocations of SVRs are selected optimally and secondly the tap positions of SVRs are optimized by the RTS. Finally, the locations of SVC are decided to brush up the voltage profile in the distribution network. The proposed method enables us to take account of the installation cost of both SVR and SVC as an economic criterion, the upper and lower limit of voltage at each node, and also the upper limit of line currents as constraints. By applying the proposed method to a practical distribution test system (IEEE 34 Node Test Feeder Model), it is verified that this method is efficient in allocating SVRs and SVCs at the minimum cost and to regulating the system voltages within an appropriate value after introducing distributed generators into the distribution system.

Original languageEnglish
Pages (from-to)1191-1198
Number of pages8
JournalIEEJ Transactions on Power and Energy
Issue number12
Publication statusPublished - 2006


  • Combinatorial optimization
  • Expansion planning of distribution network
  • Reactive tabu search
  • SVC
  • SVR

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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