Estimation of voltage signal analysis using Extended Kalman Filter

The fundamental voltage, current and phase angle are required for a wide variety of power system applications. The processed signal must be taken from the power source, when the disturbance is occurred in the system it is difficult to access the power system application. In the proposed method white noise is added into the input voltage waveform to get an unbalanced voltage signal from the source in simulation environment. Then, the unbalanced signal is given to an Extended Kalman filter circuits to estimate and remove the noise signal presents in the voltage waveform. The Extended Kalman Filter is used to remove the voltage disturbance from the power source.