Electrical Power System Harmonics Analysis Using ETAP

Younis, Safa Ahmed; Alyousif, Omar Muwaffaq Mahmood

doi:10.33899/rengj.2022.132717.1154

	Electrical Power System Harmonics Analysis Using ETAP
Al-Rafidain Engineering Journal (AREJ)
Article 10, Volume 27, Issue 1, 2022, Pages 90-98 PDF (1.62 M)
Document Type: Research Paper
DOI: 10.33899/rengj.2022.132717.1154
Authors
Safa ahmed Younis^* ¹; Omar Muwaffaq Mahmood Alyousif²
¹electrical engineering department, university of Mosul, Mosul, Iraq
²Electrical Engineering Department, Collage of Engineering, University of Mosul
Abstract
Power generation is normally produced at constant frequencies of 50 Hz or 60 Hz and the generators E.M.F can be considered practically sinusoidal. However, when a source of sinusoidal voltage is applied to a nonlinear device or load, the resulting current is not perfectly sinusoidal. Due to non-linear loads, distortions are produced in the sinusoidal waveform so filters are used to minimize these distortions. This paper aims to build a simulation model of a nine-bus ring system to evaluate characteristics of harmonics in different cases of study using electrical transient and analysis program (ETAP), which is considered one of the best tools to study harmonics in the power system, thus, the harmonic distortion is analyzed in ETAP. To generate harmonic distortion in the power network, a general load is modeled as a source of harmonics. A harmonic load flow analysis was carried out in order to determine the impact of harmonic current on a power network, and the THD% of all types of harmonic models on all the buses was checked and the typical IEEE model that has the highest THD% was chosen and compared with the model that contains low THD indices (one of the best models of IEEE manufacturer).
Keywords
Non - Linear Loads; ETAP; harmonics; THD; Typical IEEE

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