전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제59권3호
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  • Pages.492-498
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  • 2010
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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적응 간격 크기 셈법을 이용한 급전운영자 훈련 프로그램 용 전력계통 시뮬레이터 개발

Application of an Adaptive Step-size Algorithm to the Power System Model of Dispatcher Training Simulator

  • 황평익 (서울대학교 전기컴퓨터공학부) ;
  • 안선주 (명지대학교 전기공학과) ;
  • 문승일 (서울대학교 전기컴퓨터공학부) ;
  • 윤용태 (서울대학교 전기컴퓨터공학부) ;
  • 허성일 (한국전력거래소)
  • 발행 : 2010.03.01
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초록

Since it is almost impossible to train the dispatchers with real power system, the dispatcher training simulator(DTS) is used for the training. Among various components of the DTS, the power system model(PSM) emulates the dynamic behavior of the power system to calculate the frequency and voltage. The frequency is calculated from various parameters such as mechanical power of power plants, load, inertia, and the damping of the power system. In the PSM, the power plants are modeled as differential equations, so the mechanical power of the power plants are calculated by the numerical methods. Conventionally, the fixed step-size algorithm has been used in the PSM, however it has some drawbacks. This paper develops the prototype PSM using the Matlab, and analyzes the problems of the fixed step-size algorithm by comparing the results with those of PSCAD simulation. In order to overcome the limitations, this paper proposes a modified frequency calculation method using the adaptive step-size algorithm. From the simulation using the proposed method, it is verified that the accuracy of frequency calculation increases substantially while the simulation time is not greatly increased.

키워드

참고문헌

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