대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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선로고장감도를 이용한 외부 전력계통 모델링 기법에 관한 연구

A Study on the External System Modeling Using Branch Outage Sensitivity

  • 김홍래 (순천향대학교 정보기술공학부) ;
  • 권형석 (순천향대학교 정보기술공학부)
  • Kim, Hong-Rae (Dept. of Electrical Engineering, SoonChunHyang University) ;
  • Kwon, Hyung-Seok (Dept. of Electrical Engineering, SoonChunHyang University)
  • 발행 : 2000.07.17
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초록

This paper addresses the issues of the external system modeling and power system state estimation with the external model. A set of significant branches is identified in the external system based on their branch outage sensitivities on the tie-lines. Measurements on these branches are transffered to internal system and updated in real-time. The state estimator is run for different loading conditions by using the actual measurements for the internal system and selected significant external system measurements while keeping the rest of the external system measurements at their base case values. Simulation results are presented using the IEEE 118 bus system as an example.

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