Harmonics in Power Systems and Filter Applications

Year 2019, Volume: 2 Issue: 4, 117 - 122, 01.10.2019

Ali Bekir Yıldız , Berkay Sabuncu

https://doi.org/10.34248/bsengineering.565411

Cited By: 2

Abstract

With the advancing
technology, loads in the system have been varied. These loads are always asked
to be linear. However, with the effect of progressive semiconductor technology,
an increase in nonlinear loads has been observed in the system. Nonlinear loads
are loads whose current and voltage characteristics are nonlinear. Nonlinear
loads cause harmonic currents and voltages in the system. Major loads causing
harmonics are power electronic components, transformers, uninterruptible power
supplies (UPS), converters and high-power induction motors. Harmonics cause
additional energy losses in the system, heating and damage to the insulation.
For these reasons, it is important to reduce or eliminate harmonics after
formation or to block them before the formation. The most important method for
eliminating harmonics is the filtering of harmonics with filters. In this study,
firstly, it is given basic information about harmonics, their effects on energy
system, filtering methods. Then, a sample system model is performed in MATLAB
program and the effect of passive filters is examined.

Keywords

Harmonic analysis, filter circuit, resonance circuits

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