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

The Korean Institute of Electrical Engineers (대한전기학회)
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Fast Method to Calculate an Area of Severity Considering Multiple Sensitive Loads

다수의 민감 부하를 고려한 신속한 가혹지역 계산 방법

  • Park, Sang-Ho (Korea Electric Power Research Institute) ;
  • Lee, Kyebyung (School of Electrical Engineering, Korea University) ;
  • Kim, Kern-Joong (Dept. of Electrical Engineering, Chungnam National University) ;
  • Park, Chang-Hyun (Dept. of Electrical Engineering, Pukyong National University)
  • Received : 2017.09.14
  • Accepted : 2017.10.25
  • Published : 2017.11.01
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Abstract

This paper presents a fast method to identify an area of severity which is a network area leading to voltage sags at multiple sensitive load points, simultaneously. To assess voltage sag performance considering various sensitive loads, it is need to determine an area of severity for the load points. The area of severity can be calculated by overlapping areas of vulnerability for each sensitive load. However, as the number of sensitive loads increases, computational complexity and time for determining an area of severity are highly increased. In this paper, an efficient scheme based on line division is described. The proposed method is useful for identifying an area of severity and assessing voltage sag performance considering multiple loads together.

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References

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