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International Journal of Information Technology and Electrical Engineering >>Vol. 12 No. 5 (October) Issue in Process

International Journal of Information Technology and Electrical Engineering


Enhancement of Harmonic State Estimation Using Harmonic Prediction

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Author Hussam M. M. Alhaj, Nursyarizal Mohd Nor, Vijanth S.Asirvadam, M. F. Abdullah
ISSN 2306-708X
On Pages 11-18
Volume No. 1
Issue No. 1
Issue Date January 01, 2013
Publishing Date January 01, 2013
Keywords harmonic state estimation, observablity, singular value decomposition “S.V.D” algorithm, harmonic prediction



Abstract

The world wide increasing using nonlinear loads, mostly consisting of power electronics devices in many applications that bring a great concern about power quality problems caused by these nonlinear loads, harmonics pollution is main concern of power quality issues due to its harmful effect on power system network, several harmonic state estimation “H.S.E” methods have been devolved to estimate the harmonic magnitude level and to identify the harmonic sources ,This paper presents a concept, method and function of harmonic state estimation and implementation of the singular value decomposition “S.V.D” algorithm on power system harmonic state estimation for partially observable systems with harmonic prediction method to compensate the loss of the observation and maintain the redundancy of the measurements. The result shown that the proposed harmonic prediction method can compensate the loss of the measurement and therefore; enhance the performance of “S.V.D” algorithm when the loss of observation occurs.


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