GDL

Journal from gdlhub / 2019-05-09 10:34:24
Oleh : Weihown Tee, A.R. Abdullah, T Sutikno, M.H Jopri, M. Manap, Telkomnika
Dibuat : 2019-05-09, dengan 1 file

Keyword : power quality, power quality disturbances, simulation model, matlab simulation, time-frequency distribution, spectrogram
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/9493
Sumber pengambilan dokumen : WEB

In this paper, the power quality (PQ) disturbance which is the voltage variations consist of voltage swell, sag and interruption are model and analyze. Different types of voltage variations PQ disturbances models are developed and created by using MATLAB/Simulink as well as mathematical models. The mathematical and Simulink model are used to compare in terms of time-frequency representation (TFR). The Simulink models include shutting down enormouscapacities from system to resemble voltage swell, large loads energizing and three-phase fault to simulate voltage sag as well as implementing permanent three-phase fault to simulate voltage interruption. The signals generated are analyzed by using linear time-frequency distribution (TFD). The signal parameters such as root mean square voltage (Vrms), total harmonic distortion (THD) and power value are estimated from the TFR to identify the characteristics of the voltage variation. The results of analysis on the PQ disturbance waveforms generated are identical to the actual real-time PQ signals and the models can be modified to any desired situation respectively. The PQ waveforms obtained are suitable to be further analyzed.

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