A novel algorithm for identification and tracking of power system harmonics

A novel and efficient linear least squares algorithm for a real time measurement technique that can track the harmonics in power system waveforms is presented. The proposed algorithm does not require matrix inversion. The technique produces accurate real time measurements of the amplitude and phase of the harmonics present in a power system. To verify the theoretical analysis, computer simulation has been used and tested with a hypothetical signal. The results obtained confirm that the method is computationally efficient and suitable for real time applications. The simulation has shown that the computational requirement has been reduced significantly and that the identification of harmonics buried in a noisy signal is accurate.