Abstract
Recently, AC distribution systems have experienced high harmonic pollution due to the fact that electrical power system parameters are often mixed with noise. In an ideal situation, AC power system is supposed to have a constant frequency at specific voltage but owing to presence of connected nonlinear loads and injection into the grid from non-sinusoidal output active sources etc., have immensely contributed to the total distortion of the both current and voltage waveforms. This has increased the system loses and consequently affected other connected equipment in the system. Therefore there is a need to mitigate these effects if they cannot be eliminated intoto, hence the proposition of Kalman filter. It has been very useful in the aspect of electrical power discipline particularly in harmonic estimation. It has also find it way in the application of power system dynamics, optimal operation and control of motor, relay operation and protection, and also for accurate prediction of short and medium term electrical load forecasting. This paper is to highlight on the significant of Kalman filter methodological approach as adopted in electrical power system.
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