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http://dx.doi.org/10.5370/KIEE.2010.59.2.242

Development of Real-Time Load Flow Program for Korean Energy Management System  

Yun, Sang-Yun (한전 전력연구원)
Cho, Yoon-Sung (LS산전 전력연구소)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.59, no.2, 2010 , pp. 242-247 More about this Journal
Abstract
This paper introduces a real-time load flow program for Korean energy management system(EMS). This study is concentrated on the following aspects. First, we propose the model of the real-time database and power system equipment for the real-time load flow. These models are extracted from the needs of load flow functions and are designed to the application common information. Second, several techniques are applied for the efficient convergence and computational speed. The generation/load mismatch is redistributed using generator participation factors which are separated to the reference bus. For the voltage control, the jacobian matrix is composed with the basic Y matrix elements and the voltage control elements. Through the optimally ordering, jacobian row and column for a column is changed. However all jacobian matrix entries have same order with the Y matrix. The proposed program is tested using the Korea Electric Power Corporation(KEPCO) system. Through the test, we verified that the proposed program can be effectively used to accomplish the Korean EMS system.
Keywords
Korean EMS; Power flow calculation; Real time application; Network analysis software; Linear programming;
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