Least Error Square based frequency and amplitude estimation of power signal

Abstract: . An algorithm based on the least squares error method is proposed for frequency tracking and phasor estimation. The mathematical aspects of the technique are described and factors affecting the algorithm are discussed. To demonstrate the performance of the developed algorithm, computer simulated data records presented. To establish the feasibility of the proposed algorithm, it has been tested in a laboratory in offline and online environment and results of sample tests are also presented in this paper.

Keywords: LES, Window size, Phasor Technology, Pseudo inverse