Filtration of Harmonic Components and Correction Power Factor in Nonlinear Loads
Journal Title: Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji - Year 2019, Vol 7, Issue 1
Abstract
Total harmonic distortion has become an important subject in power quality, especially afteruse of power electronicequipment and non-linear loads. Working of electricity systems smoothly and safety depends on the foundation of quantities such as current and voltage which are sinusoidal and 50 Hz frequency. However, these foundation quantities lose their sinusoidal characteristics because of many reasons and this occurs unwanted harmonics in the system.It is a highly preferred methodto use passive filtersfor reduction harmonic and to improve the power factor. The proposed power system is a combination of three-phase voltage supply, power transformer, six-pulse rectifier, passivefilter, and R-L inductive load. A six-pulse uncontrolled rectifier produces 5th, 7th, 11th, 13th, 17th, 19th, etc. current harmonics components. A passive filter is used to reduce the total harmonic distortion of the input current of the three-phase uncontrolled rectifier. Power system is modeled by using Matlab/Simulink program. Simulation results show that both the harmonics are eliminated and the power coefficient is corrected.Before using passive filters the power coefficient was 0.6877, and the THDI value was measured as 12.71 % in the power system. After using passive filters, the power coefficient was 0.99 and the THDI value was measured as 3.591 % in power system.
Authors and Affiliations
Süleyman ADAK, Hasan Cangi, Ahmet Serdar YILMAZ
Keywords
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- EP ID EP491404
- DOI 10.29109/gujsc.454079
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