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Analytical and impedance matrix approach to stochastic assessment of voltage sags on transmission networks

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4 Author(s)
R. Jeya Gopi ; Power Quality Research Group, Department of Electrical, Power Engineering, Universiti Tenega Nasional, Selangor, Malaysia ; V. K. Ramachandaramurthy ; M. T. Au ; H. Ali

Stochastic assessment is a method to predict the severity and number of voltage sags at a bus of interest in the transmission network. In this paper, a technique using impedance matrix for stochastic assessment was developed to predict the voltage magnitudes due to faults at any bus in the electrical network. The proposed technique was applied to IEE 24- bus electrical network to illustrate its application. The results show that the proposed technique is able to compute the predicted voltage magnitude at any bus and the number of sags per year.

Published in:

TENCON 2009 - 2009 IEEE Region 10 Conference

Date of Conference:

23-26 Jan. 2009