Voltage Harmonic Distortion in Autonomous Electric Power System with an Adjustable Power Line Conditioner

Abstract

An improved analytical method for estimating of voltage harmonic distortions in autonomous electric power system (AEPS) with powerful semiconductor converter (SC) and hybrid adjustable power line conditioner (APLS) had been proposed. APLC consists an uncontrolled resonant filter and PWM controlled reactor compensator. An analysis of piecewise function of voltage in steady state regime of the system is fulfilled. The analysis is taking into account the influence of its elements and their parameters. Analytical expressions for the voltage harmonic distortion factor were obtained taking into account the entire voltage harmonics spectrum in a closed finite form. The comparison of analytical calculations and computer simulation results had been executed.