Distribution system power quality compensation using a HSeAPF based on SRF and SMC features

Abstract The purpose of this paper is to describe the design a Hybrid Series Active Power Filter (HSeAPF) system improve quality power on three-phase distribution grids. controls are comprise Pulse Width Modulation (PWM) based Synchronous Reference Frame (SRF) theory, and supported by Phase Locked Loop (PLL) for generating switching pulses control Voltage Source Converter (VSC). DC link voltage controlled Non-Linear Sliding Mode Control (SMC) faster response ensure that it maintained at constant value. When compared with Proportional Integral (PI), then improvements made can be shown. function HSeAPF eliminate fluctuations, swell/sag, prevent voltage/current harmonics produced both non-linear loads small inverters connected network. A digital generates frequencies an oscillating phase-locked output signal voltage. results from simulation indicate effectively suppress dynamic harmonic reactive compensation system. Also, network has low Total Harmonic Distortion (< 5%), demonstrating designed efficient, which essential requirement when comes IEEE-519 IEC 61,000–3-6 standards.