Multi Objective Evaluation for Local Power System Configuration Based on Deterministic and Probabilistic Approaches

Yasuhiro Hayashi, Junya Matsuki, Kazuhisa Sato, Yuko Tokunoh

Research output: Contribution to journalArticlepeer-review


Local power systems (66 kV) are served from the 275 kV or 154 kV substations. In order to maintain power supply reliability, the transmission lines are connected to several substations, and the operational configuration is radial. Since practical local power system has a number of transmission lines, many configuration candidates occur. It is expected to effectively evaluate these configuration candidates from various viewpoints such as reliability of power supply, transmission loss and so on. In this paper, the authors propose a multi objective evaluation method by using deterministic and probabilistic approaches for local power system configuration. In the proposed multi objective evaluation method, after selecting system configuration candidates which satisfy N-1 security by using an optimization method based on Boolean function, these candidates are evaluated from viewpoints of expected outage time, transmission loss and facility operation rate. In order to check the validity of the proposed method, numerical results are shown for a practical local system model with about 39 × 1027 configuration candidates.

Original languageEnglish
Pages (from-to)1172-1179
Number of pages8
JournalIEEJ Transactions on Power and Energy
Issue number10
Publication statusPublished - 2003
Externally publishedYes


  • Local power system
  • expected outage time
  • facility operation rate
  • multi objective evaluation
  • n-1 security
  • optimization method
  • reliability of power supply
  • system configuration
  • transmission loss

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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