A harmonic power flow program aimed at analyzing distortion effects caused by industrial customers

One of the major concerns in the power quality analysis in power systems is the voltage and current distortion caused by industrial customers. Several techniques in time-domain, frequency-domain, and hybrid-domain are used, depending on the analysis approach. The Harmonic Power Flow, a frequency domain technique, is a powerful tool to analyze the propagation of harmonic currents from non-linear loads to other load or generation buses in the system. HPFepn, a program developed, will be used to simulate the voltage harmonic distortion caused by two industrial customers into the hydropower plants of an electric utility.