Saputra, Ega Bagus (2026) Unit Commitment Menggunakan Metode Mixed Integer Linear Programming Di Sistem Kelistrikan Sulbagsel Mempertimbangkan Batas Inersia. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penambahan Energi Baru Terbarukan (EBT) secara masif di sistem kelistrikan Sulawesi Bagian Selatan (Sulbagsel) berdampak pada penurunan inersia sistem yang meningkatkan risiko ketidakstabilan frekuensi. Penelitian ini bertujuan mengoptimalkan penjadwalan pembangkit melalui pendekatan Unit Commitment dengan batasan inersia minimum menggunakan metode Mixed-Integer Linear Programming (MILP). Simulasi dilakukan dalam dua kondisi (musim hujan dan kemarau) melalui empat skenario operasional. Hasil menunjukkan bahwa Skenario 4 yang mengintegrasikan batasan inersia dan Battery Energy Storage System (BESS) sebagai primary reserve—merupakan solusi paling optimal. Skenario ini berhasil menjaga stabilitas frekuensi dengan nilai Rate of Change of Frequency (RoCoF) sebesar 0,108 Hz/s dan nadir frekuensi 49,447 Hz. Adapun total biaya operasional yang dihasilkan adalah Rp 19.432.670.297 pada musim hujan dan Rp 25.157.504.167 pada musim kemarau.
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The massive addition of renewable energy (RE) to the Southern Sulawesi (Sulbagsel) power system has led to a decrease in system inertia, increasing the risk of frequency instability. This study aims to optimize power plant scheduling through a Unit Commitment approach with minimum inertia constraints using the Mixed-Integer Linear Programming (MILP) method. Simulations were conducted under two conditions (rainy and dry seasons) across four operational scenarios. The results show that Scenario 4, which integrates the inertia constraint and the Battery Energy Storage System (BESS) as the primary reserve, is the most optimal solution. This scenario successfully maintains frequency stability with a Rate of Change of Frequency (RoCoF) of 0.108 Hz/s and a frequency nadir of 49.447 Hz. The total operational costs are Rp 19,432,670,297 during the rainy season and Rp 25,157,504,167 during the dry season.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Unit Commitment, Inersia Minimum, MILP, BESS, Economic Dispatch |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1322.6 Electric power-plants T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7870.23 Reliability. Failures |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Ega Bagus Saputra |
| Date Deposited: | 22 Jul 2026 04:13 |
| Last Modified: | 22 Jul 2026 04:21 |
| URI: | http://repository.its.ac.id/id/eprint/136196 |
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