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All Journal International Journal of Electrical and Computer Engineering International Journal of Applied Power Engineering (IJAPE) PROtek : Jurnal Ilmiah Teknik Elektro Jambura Journal of Electrical and Electronics Engineering Journal of System and Computer Engineering Patria Artha Journal of Community
Rahman, Muhammad Natsir
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Health Professions Public Health Social Sciences

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Journal : international journal of electrical and computer engineering

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Identification of critical buses in the Sulbagsel electrical system network integrated with wind power plants Ilyas, Andi Muhammad; Siswanto, Agus; Rahman, Muhammad Natsir
International Journal of Electrical and Computer Engineering (IJECE) Vol 16, No 2: April 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v16i2.pp587-597

Abstract

The growing deployment of renewable energy has become increasingly important as conventional fossil-based generation faces sustainability and resource limitations. On Sulawesi Island, Indonesia, wind energy contributes to the regional grid through several wind power plants, whose fluctuating generation introduces operational concerns for system stability. This study investigates the stability performance of the Sulbagsel 78-bus network by pinpointing vulnerable buses and examining the effects of wind power variability. A hybrid stability index (HSI), which integrates multiple stability indicators, is applied to obtain a more robust assessment. The analysis shows that the entire system operates within a secure margin, with all index values remaining below the critical limit (<1). The most sensitive areas are located on the transmission paths connecting Bus 56 Sidera–Bus 57 Sidera 70 kV (0.02268), Bus 38 Bosowa–Bus 40 Pangkep (0.02220), and Bus 73 Powatu 150 kV–Bus 74 Powatu 70 kV (0.02187). In contrast, the Bus 24 Tanjung Bunga–Bus 25 Bontoala corridor demonstrates the strongest stability margin (0.00026). These results indicate that the variability of wind generation does not impose significant negative impacts on the overall stability of the Sulbagsel power system.
Co-Authors Abdurrahman, Tanridio Silviati Delfina Afdhal, Ahmad Agus Siswanto Amal Khairan Aswat, Aldi BASALAMAH, ABDULLAH Bayu Adrian Ashad Dharmawan Dharmawan, Dharmawan Djufri, Idham A Faanzir, Faanzir Haryati Haryati Imam Hizbullah Iswan Iswan Lahmado, Haris Masa, Muhammad Anas Muksin, Hijra Rasyid, Ramly Ryadin, Aisjah Rachmawaty Saifuddin, Abdu Salmiah Salmiah Suparman Suparman Syamsuddin, Faris Umar Umar Wahab, Anisa Abd.