Modeling and Simulation of a PI Controlled Shunt Active Power Filter for Power Quality Enhancement Based on P-Q Theory

Amir A Imam,Yusuf A Al-Turki,R Sreerama Kumar

doi:10.3390/electronics9040637

Amir A Imam, Yusuf A Al-Turki + Show 1 more

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https://doi.org/10.3390/electronics9040637

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Journal: Electronics	Publication Date: Apr 13, 2020
Citations: 64	License type: CC BY 4.0

Affiliation: King Abdulaziz University

Abstract

The design of reliable power filters that mitigate current and voltage harmonics to meet the power quality requirements of the utility grid is a major requirement of present-day power systems. In this paper, a detailed systematic approach to design a shunt active power filter (SAPF) for power quality enhancement is discussed. A proportional–integral (PI) controller is adopted to regulate the DC-link voltage. The instantaneous reactive power theory is employed for the reference current’s extraction. Hysteresis current control is used to obtain the gate pulses that control the voltage source inverter (VSI) switches. The detailed SAPF is developed and simulated for balanced nonlinear loads and unbalanced nonlinear loads using MATLAB/Simulink. The simulation results indicate that the proposed filter can minimize the harmonic distortion to a level below that deployed by the Institute of Electrical and Electronics Engineers (IEEE) standards.

Highlights

Nonlinear electric appliances, which rely on power electronic switches, are widely used in the domestic and industrial utilization of every utility throughout the world [1,2]
The results proved that the proposed control technique can compensate for the harmonic currents under steady-state and dynamic load conditions
The effectiveness of the proposed shunt active power filter control algorithm in the mitigation of current harmonics due to nonlinear loads is performed through a system simulation using the MATLAB/Simulink power tool

Summary

Introduction

Nonlinear electric appliances, which rely on power electronic switches, are widely used in the domestic and industrial utilization of every utility throughout the world [1,2]. The presence of nonlinear loads, such as personal computers, variable frequency drives (VFDs) and arc furnaces, gives rise to power quality problems, e.g., harmonic distortion, voltage fluctuation and noise [3,4,5]. The need for the elimination of power quality problems has become an important issue for both the utility and the customer [8]. In order to curb the uncensored injection of harmonic currents in power networks, the Institute of Electrical and Electronics Engineers-Standards. Association (“IEEE-SA”) addressed the harmonics limitations standard in (IEEE Std 519-1992 [9]), which was revised in 2014 (IEEE Std 519–2014 [10]).

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