ANALYSIS OF HARMONIC DISTORTION EFFECTS ON THE INSTALLATION OF GRID TIE INVERTER USING MATLAB SIMULINK

SKRIPSI

Abstract

By : I Dewa Gede Bayu Satya Nugraha

Email : idawegbayu@gmail.com

Faculties : Fakultas Teknik

Department : S1 Teknik Elektro

On power system network, there are several issues greatly affect the power quality of power system, one of which is harmonic. Harmonic is symptom formation of sine waves with frequencies multiple of fundamental frequency. Harmonic wave rides on a pure sine wave, wich form defect wave that is the sum of a pure sine wave with harmonic wave. Harmonic occurs due to the nonlinear load generated by the electric device, for example is inverter. In inverter harmonic occurs, due to switching process. This project calculated distortion harmonic wave generated in inverter before and after it is mounted filter. Type of filter used here is passive filter (single-tunned filter). The simulation result by using simulink MATLAB software, show that the THDv values are 38.94% and 27.43% for the initial condition and filter-used condition respectively. As the THDv value in the filter-used condition is out of IEEE standard, it is required to install some more filters.

Keyword : Power Quality, PLTS, Harmonics, Passive Filter

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