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

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on a Methodology of Determining an Appropriate Load Power Factor Effectively by the Use of Reactive Power Sensitivity and Load Duration Curve

무효전력 민감도와 부하지속곡선을 활용한 적정 부하역률의 효과적인 산정 기법에 관한 연구

  • Lee, Byung Ha (Dept. of Electrical Engineering, Incehon University) ;
  • Hwang, Sung-Ho (Dept. of Electrical Engineering, Incehon University)
  • Received : 2012.10.23
  • Accepted : 2012.11.28
  • Published : 2012.12.01
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Abstract

In this paper, a methodology to use load duration curve and the reactive power factor sensitivity of generation cost is proposed for analyzing the effects of load power factor effectively. A great deal of cases of power systems are classified into several patterns according to the characteristics using load duration curve, and the overall effects of load power factor are assessed by integrating the analysis results of load power factor in all the patterns. The reactive power sensitivity of generation cost and the integrated costs such as generation cost, investment cost, voltage variation penalty cost and CO2 emission cost are used for determining an appropriate load power factor. A systematic procedure for effective analysis of load power factor is presented. It is shown through the application to the practical power system of KEPCO(Korea Electric Power Corporation)that the effects of load power factor can be analyzed effectively using load duration curve and reactive power factor sensitivity.

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References

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