Cooperation voltage control method of LRT and SVR in distribution system with PV systems corresponding to bank fault restoration

Shinya Yoshizawa, Yasuhiro Hayashi, Masaki Tsuji, Eiji Kamiya

Research output: Contribution to journalArticle

8 Citations (Scopus)


Voltages in distribution system are maintained within a proper voltage range by adjusting a tap position of Load Ratio control Transformer (LRT) and Step Voltage Regulator (SVR). In Japan, many voltage control methods have been researched. However, these conventional methods do not presuppose the bank fault restoration. Since the main purpose of voltage control of the conventional restoration approach is to reduce the amount of voltage violation in distribution system, the number of customers with voltage violation cannot be reduced to zero during a bank fault restoration. In this paper, the authors propose a cooperation voltage control method of LRT and SVR to minimize the number of customers with voltage violation corresponding to the bank fault restoration in distribution systems with PV systems. In the proposed method, the tap position of SVR is controlled after the control of LRT to avoid frequent tap changes and each tap position of voltage control devices is controlled to minimize the number of customers with voltage violation. In order to check the effectiveness of the proposed method, the simulation using distribution system model with PV systems is performed under various conditions.

Original languageEnglish
Pages (from-to)333-342
Number of pages10
JournalIEEJ Transactions on Power and Energy
Issue number4
Publication statusPublished - 2013 May 20



  • Bank fault restoration
  • Distribution system
  • LRT
  • PV system
  • SVR
  • Voltage control

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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