Optimal assignment of the battery for the electric power system against N-1 accident

Hidetoshi Watanabe, Nobuaki Takase, Takashi Okamoto, Kojiro Seki, Toru Jintsugawa, Eitaro Aiyoshi

Research output: Contribution to journalArticlepeer-review


Recently, the introduction of the battery has been investigated in the electric power system. The purpose of the introduction of the battery is the system stabilization against the voltage fluctuation and the frequency fluctuation caused by the introduction of the renewable energy and the system accident. In this study, the battery is ranked as an instantaneous reserve power that instantaneously provides energy to the system in order to stabilize the system against the system disturbance. This study investigates the optimal battery assignment method against the system disturbance. Specifically, the one line accident in the electric power system is assumed as the cause for the system disturbance. Then, a new optimal battery assignment problem whose objective is the minimization of the variation of phase difference on all nodes caused by the accident at each branch is formulated. Then, an optimization method that consists of the tabu search and the differential evolution is applied to the formulated problem. The effectiveness of the proposed method is confirmed through numerical experiments of the application to the IEEJ EAST10 model.

Original languageEnglish
Pages (from-to)746-757
Number of pages12
JournalIEEJ Transactions on Electronics, Information and Systems
Issue number5
Publication statusPublished - 2016


  • Electric power system
  • Meta-heuristics
  • Optimal assignment
  • Optimization
  • Storage battery

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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