Main Article Content
The determination of amplitude and angle fundamental components of power network voltage is key step in calculation and control electrical systems. Nonlinear function recognition methods are often used in case the power system frequency is changed. In order to further improve the efficiency of determining the amplitude and phase angle of the measured signals, the paper proposes a method to identify these parameters using an adaptive Gradient Descent algorithm. The obtained results have better convergence time and accuracy when compared with the nonlinear function recognition method by Levenberg – Marquardt algorithm.