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http://dx.doi.org/10.5370/KIEE.2012.61.12.1782

A Study on a Methodology of Determining an Appropriate Load Power Factor Effectively by the Use of Reactive Power Sensitivity and Load Duration Curve  

Lee, Byung Ha (Dept. of Electrical Engineering, Incehon University)
Hwang, Sung-Ho (Dept. of Electrical Engineering, Incehon University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.12, 2012 , pp. 1782-1790 More about this Journal
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.
Keywords
Load power factor; Reactive power sensitivity; Generation cost; Load duration curve; Economic investment;
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