Evaluation of Active Filter Design and Harmonics Analysis Using MATLAB

Nowadays, electricity becomes one of the most important necessities in the world. Designing the filter is one way to improve power quality in delivering electrical power to the consumer. In recent times, the usage of non-linear loads has been expanded throughout the world. These loads carry harmonic non-sinusoidal voltages and currents with the utility in the cohesion point and disperse them through it. The generation of these voltages and currents into the grid affects the client’s equipment and the power systems. This paper presents the evaluation of filter design and harmonic analysis of the system network. For filter design and analysis, MATLAB/Simulink is used. Shunt Active Power Filter (SAPF) has been proposed as an effective tool to compensate reactive power and improve power quality. DC link voltage is used to boost the SAPF’s efficiency in an un-balanced and distorted voltage system. Simulation result shows that SAPF will lessen the Total Harmonic Distortion of line current from 30.73% to 8.21%, which satisfies the standard of IEEE-519.