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All Journal International Journal of Smart Grid and Sustainable Energy Technologies
Angga Budi Prastyo
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy

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Analysis of Under-frequency Load Shedding (UFLS) Relay Setting during Disturbances Irrine Budi Sulistiawati; Angga Budi Prastyo; Abraham Lomi; Ardyono Priyadi
International Journal of Smart Grid and Sustainable Energy Technologies Vol 3 No 2 (2019): IJSGSET
Publisher : Department of Electrical Engineering, Institut Teknologi Nasional Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.315 KB) | DOI: 10.36040/ijsgset.v3i2.2292

Abstract

Load changes on the system will affect the system stability itself. Load demand that exceeds the generated power will cause the system frequency to decline. Therefore, a load shedding procedure is required to improve the frequency. This research focuses on how to design a load shedding scheme that is activated by the operation of under frequency relay. There are two scenarios to analyze the system performance with a simulation, which are losing power on line about 128 MVA and generator loss power about 192 MVA. Those scenarios result in a decrease in the system frequency to 47.48 Hz and 47.90, respectively. After the load shedding scenario is performed, the frequency became an increase in the range of 51.54 Hz and 49 Hz within a few seconds.
Co-Authors Abraham Lomi Ardyono Priyadi Irrine Budi Sulistiawati