Reduction of harmonics using Active Power Filters in Electric Power System

Abstract

For the purposes of this study, the authors simulate an active power filter using Matlab software. The work looks at an active power filter, which is commonly used in electrical systems to decrease the quantity of harmonics occurring. Harmonic voltages or currents are defined as alternating currents or voltages with a frequency that is an integral multiple of the fundamental frequency. Harmonics degrade the degree of power effectiveness and productivity in an industrial or commercial facility by conflicting with the passage of electrons in that facility. Harmonic mitigation devices are a type of device that injects a mirror image waveform of the harmonic component of a distorted waveform, which is an active power filter, into the deformed waveform, thus lowering its harmonic content. Active power filters, despite being a relatively new and expensive technology, have a number of major advantages that should be thoroughly investigated before being applied. The operation of the system is verified using the Matlab/Simulink simulation tool. The active power filter and the Matlab verification technique are explored in greater detail after an overview of harmonic distortion difficulties and the repercussions of these issues for power quality. As a result of the study, the total harmonic distortion of the source current is decreased from 19.5 percent to 0 percent, allowing it to comply with the harmonic standard (IEEE STD. 519-1992) for the first time.