Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Extended State Estimation Algorithm in Power Systems

확장된 전력 상태추정 알고리즘 개발

  • Shon, H.S. (Dept. of Electrical Eng. Yonsei Univ.) ;
  • Ha, Y.K. (Dept. of Electrical Eng. Yonsei Univ.) ;
  • Ryu, H.S. (Dept. of Electrical Eng. Yonsei Univ.) ;
  • Moon, Y.H. (Dept. of Electrical Eng. Yonsei Univ.) ;
  • Song, K.B. (Dept. of Electronical Eng. Keimyung Univ.) ;
  • Park, J.D. (Dept. of Electrical Eng. Uiduk Univ.)
  • 손형수 (연세대학교 전기공학과) ;
  • 하연관 (연세대학교 전기공학과) ;
  • 류헌수 (연세대학교 전기공학과) ;
  • 문영현 (연세대학교 전기공학과) ;
  • 송경빈 (계명대학교 전자공학과) ;
  • 박정도 (위덕대학교 전기공학과)
  • Published : 2001.07.18
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Abstract

State estimation in power system is to estimate state variable value which minimizes the error from the real state measured by the gauge and connection state of the circuit breaker. In the past, it was difficult to determine measure function considering the correlation of the measured values. In this paper, an extended state estimation is proposed to process easily various kinds of estimation variable. The proposed algorithm is developed by expanding state variable concept based on many measured values and treating correlation between estimation variable and state variable, it is considered that the state variable satisfy some limitations named "Equality Limitation conditions".

Keywords