Applications of System Loss Sensitivity Index to Power Systems

손실감도지표의 전력계통 적용

  • 이상중 (서울산업대 공대 전기공학과)
  • Published : 2000.02.01

Abstract

In the paper, the system loss sensitivity index that implies the incremental system loss with respect to the change of bus power is derived using optimization technique. The index λ reaches $\infty$ at critical loading point and can be applied to actual power systems for following purposes. 1) Evaluation of system voltage stability 2)Optimal investment of reactive power focused on minimizing system loss and maximizing system voltage stability 3)Optimal re-location of reactive power focused on minimizing system loss and maximizing system voltage stability 4)Optimal load shedding in case of severe system contingency focused on minimizing system loss and maximizing system voltage stability. Case studies for each application have proved their effectiveness.

Keywords

References

  1. Mokhtars Bazaraa and C.M.Shetty 'Non- linear Programming Theory and Algorithms', John Wiley & Sone Inc. 1979
  2. 김건중,심국진,정태호,이상중, '실시간 전압붕괴 근접도', 대한전기학회 전력계통연구회 논문집, pp 51-55, 1991. 4
  3. 김건중,김원겸,정태호,이상중, '전압안정도 개선을 위한 무효전력제어', 대한전기학회 하계학술대회 논문집, pp 422-425, 1991. 8
  4. 이상중,김건중,김원겸,김용배,엄재선 '피상전력 손실감도 지표에 근거한 전압붕괴 근접도지표와 무효전력 투자' 전기학회 논문지 44-10-8 1995.10월호, pp 1290-1294
  5. 이상중,정태호,김건중,김원겸,김용배 '계통손실 감소를 위한 전력용 콘덴서의 적정 재배치에 대한 연구' 전기학회 논문지 44-1-4 1995.1월호 pp 21-24
  6. 이상중,김건중,김원겸,김용배,'전압 안정도 개선을 고려한 적정 부하차단 기법', 전기학회 논문지 44-3-2, 1995. 3월호 pp 270-273