대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

가관측성을 고려한 전력개통 상태추정을 위한 측정점선정 알고리즘에 관한 연구

A Study on Measurement Selection Algorithm for Power System State Estimation Under the Consideration of Observability

  • 이태식 (연세대학교 전기공학과) ;
  • 이응혁 (연세대학교 전기공학과) ;
  • 노태훈 (연세대학교 전기공학과) ;
  • 홍효식 (연세대학교 전기공학과) ;
  • 국현종 (연세대학교 전기공학과) ;
  • 문영현 (연세대학교 전기공학과)
  • Lee, T.S. (YONSEI UNIVERSITY ELECTRICAL ENGINEERING DEPARTMENT) ;
  • Lee, E.H. (YONSEI UNIVERSITY ELECTRICAL ENGINEERING DEPARTMENT) ;
  • Rho, T.H. (YONSEI UNIVERSITY ELECTRICAL ENGINEERING DEPARTMENT) ;
  • Hong, H.S. (YONSEI UNIVERSITY ELECTRICAL ENGINEERING DEPARTMENT) ;
  • Kuk, H.J. (YONSEI UNIVERSITY ELECTRICAL ENGINEERING DEPARTMENT) ;
  • Moon, Y.H. (YONSEI UNIVERSITY ELECTRICAL ENGINEERING DEPARTMENT)
  • 발행 : 1995.11.18
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초록

This paper presents an improved algorithm of optimal measurement system design with a reliability evaluation method for a large power system. The proposed algorithm is developed to cosider the observability and to achieve highest accuracy of the state estimator as well with the limited investment cost. When the effect on these dummy bus measurements is considered in the proposed algorithm the other errors in the power system is also detected and then analyzed until to achieve the limited values. By taking advantage of the matrix sparsity and the optimal bus ordering the memory and the time are successfully reduced in the P/C's and workstation's model. The improved program is successfully tested for IEEK sample system and KEPCO system with PSS/E lineflow calculated data package.

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