GDL

Journal from gdlhub / 2021-01-26 10:07:47
Oleh : Mohd Hatta Jopri, Abdul Rahim Abdullah, Rony Karim, Srete Nikolovski, Tole Sutikno, Mustafa Manap, Telkomnika
Dibuat : 2021-01-26, dengan 1 file

Keyword : harmonic source identification; power distribution system; spectral impedance; S-transform; time-frequency distribution;
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/5632
Sumber pengambilan dokumen : web

This paper introduces the accurate identification of harmonic sources in the power distribution system using time-frequency distribution (TFD) analysis, which is S-transform. The S-transform is a very applicable method to represent signals parameters in time-frequency representation (TFR) such as TFR impedance (ZTFR) and the main advantages of S-transform it can provide better frequency resolution for low frequency components and also offers better time resolution for high-frequency components. The identification of multiple harmonic sources are based on the significant relationship of spectral impedances (ZS) that extracted from the ZTFR, consist of the fundamental impedance (Z1) and harmonic impedance (Zh). To verify the accuracy of the proposed method, MATLAB simulations carried out several unique cases on IEEE 4-bus test feeder cases. It is proven that the proposed method is superior, with 100% correct identification of harmonic source location. It is proven that the method is accurate, fast and cost-efficient to localize harmonic sources in the power distribution system.

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