• 제목/요약/키워드: Induction Motor and OLTC

검색결과 3건 처리시간 0.015초

유도기모델을 사용한 동적 전압 안정도 해석II (DYNAMIC VOLTAGE COLLAPSE ANALYZED BY INDUCTION MOTOR MODEL II)

  • 김용배;김건중;김원겸;정태호;추진부;이상중
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1993년도 하계학술대회 논문집 A
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    • pp.171-173
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    • 1993
  • This paper deals with a methodology of the dynamic voltage stability analysis. The several physical power system constraints e.q upper and lower lomit of SVC and OLTC are considered. The proposed equivalent load model is the combination induction motor and impedance load. The variation of System voltages and equivalent induction motor slips for actual power systems are simulated and plotted in this paper.

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혼합형 전압안정도 해석 (Hybrid Voltage Stability Analysis)

  • 김원겸;김건중;주운표;이상중
    • 대한전기학회논문지:전력기술부문A
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    • 제49권2호
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    • pp.43-49
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    • 2000
  • It is a complex process to analyze power system voltage stability problems with all of the dynamics of a system, because a large power network system sophisticatedly consists of generators, lines, loads and so forth. So we considered the dynamics of loads so as to analyze voltage stability method- by carrying out an analysis of steady state voltage stability and dynamic voltage stability simultaneously. To perform a steady state voltage stability program in advance makes it possible to cut down on laborious calculations so that an analysis of dynamic voltage stability becomes concise. The validity and efficiency of the method presented in this paper were verified by applying the IEEE 14 bus system.

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계통(系統)의 안전성(安全性) 제어(制御)를 고려(考慮)한 동적(動的) 전압안정도(電壓安定度)에 관(關)한 연구(硏究) (A Study on the Dynamic Voltage Stability Considering the Power System Security Control)

  • 이근준;황종영;이길순;정태호;김건중;김용배
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1994년도 추계학술대회 논문집 학회본부
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    • pp.54-60
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    • 1994
  • The cause of black out of Tokyo Power in 1987 has been identified as the voltage stability problem. After this event many researchers has been interested in voltage stability or voltage collapse phenomena. The voltage instability is different Com the transient stability in the sense of reactive power mismatch and the long duration time. In this study, we developed efficient tool for analyze and control the dynamic voltage instability. To analize specific condition of dynamic voltage stability, quasi-dynamic simulation method is developed. To provide proper mathmatical model for dynamic voltage stability, generator, SVC, OLTC, induction motor models are introducted. To provide specified dynamic voltage stability, the authors considered to use reactive loss function(${\partial}Q/{\partial}p_L$) as reactive power facility control index. This program was tested and identified its usefulness in real KEPCO system.

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