Rochman, Faisal Taufiq (2026) Desain Automatic Generation Control Mempertimbangkan Economic Dispatch Untuk Mengurangi Deviasi Frekuensi dan Meningkatkan Efisiensi Operasi Jaringan Listrik di Pulau Bawean. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sistem tenaga listrik Pulau Bawean merupakan salah satu microgrid terisolasi di Indonesia yang dipasok oleh unit pembangkit gas dan diesel dengan dukungan inersia rendah, sehingga menyebabkan frekuensinya rentan saat terjadi kontingensi generator. Saat ini, stabilitas frekuensi hanya ditopang oleh governor. Oleh karena itu, sistem bergantung pada pengoperasian manual untuk memulihkan frekuensi ke nilai operasi nominalnya. Makalah ini mengusulkan desain Automatic Generation Control (AGC) berbasis faktor partisipasi pada sistem kelistrikan Pulau Bawean. Kinerja sistem dievaluasi melalui komparasi tiga skema strategi, yang meliputi skema faktor partisipasi merata, skema berbasis biaya inkremental, dan skema teroptimasi algoritma RIME. Evaluasi dilakukan melalui simulasi dinamis RMS domain waktu pada model sistem kelistrikan Pulau Bawean menggunakan DIgSILENT PowerFactory dengan bantuan automasi Python. Berdasarkan pengujian pada skenario kondisi beban rendah (BR) dengan gangguan berupa lepasnya salah satu generator, hasil penelitian menunjukkan bahwa faktor partisipasi yang dioptimasi dengan RIME mampu meningkatkan pemenuhan target Take-or-Pay menjadi 95,754089%, dibandingkan dengan pencapaian sebesar 84,7633% dan 86,1267% masing-masing pada skema faktor partisipasi merata dan skema berbasis biaya inkremental. Walaupun demikian, keunggulan alokasi ekonomis ini menghasilkan kompromi pada performa dinamis sistem. Skema RIME mencatat settling time sebesar 159,30 s dan Integral of Absolute Error (IAE) sebesar 9,41 Hz·s, yang mana nilai tersebut menunjukkan respons yang lebih lambat dibandingkan skema merata dengan 23,54 s dan 1,67 Hz·s, maupun skema inkremental dengan 40,68 s dan 2,63 Hz·s. Secara keseluruhan, sistem AGC yang dirancang mampu mengembalikan frekuensi ke nilai nominal 50 Hz selama ketersediaan cadangan berputar (spinning reserve) mencukupi, serta menawarkan fleksibilitas penyesuaian strategi perhitungan faktor partisipasi yang dapat diarahkan untuk memprioritaskan efisiensi ekonomis atau kecepatan respons dalam memulihkan frekuensi sesuai dengan kebutuhan operasional jaringan.
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The Bawean Island power system is an isolated microgrid in Indonesia supplied by gas and diesel generating units characterized by low inertia, making its frequency highly vulnerable during generator contingencies. Currently, frequency stability is solely supported by the governor's primary response. Consequently, the system relies on manual intervention to restore the frequency to its nominal operating value. This paper proposes the design of a participation-factor-based Automatic Generation Control (AGC) for the Bawean Island power system. System performance is evaluated through the comparison of three strategy schemes: equal participation factors, incremental-cost-based participation factors, and a RIME-algorithm-optimized scheme. The evaluation is conducted through time-domain RMS dynamic simulations on the Bawean Island power system model using DIgSILENT PowerFactory, assisted by Python automation. Based on testing under a low load scenario subjected to a generator trip disturbance, the results indicate that the RIME-optimized participation factor successfully improves the fulfillment of the gas Take-or-Pay target to 95.754089%, compared to 84.7633% and 86.1267% achieved by the equal and incremental-cost schemes, respectively. Nevertheless, this advantage in economic allocation introduces a measurable trade-off in the system's dynamic performance. The RIME scheme records a settling time of 159.30 s and an Integral of Absolute Error (IAE) of 9.41 Hz·s, indicating a slower response compared to the equal scheme (23.54 s and 1.67 Hz·s) and the incremental scheme (40.68 s and 2.63 Hz·s). Overall, the designed AGC system is capable of restoring the frequency to the nominal value of 50 Hz, provided that sufficient spinning reserve is available. Furthermore, it offers flexibility in adjusting the participation factor calculation strategy, allowing grid operators to prioritize either economic efficiency or frequency restoration speed in accordance with operational requirements.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Automatic Generation Control (AGC), Economic Dispatch, Faktor Partisipasi, Stabilitas Frekuensi, Take-or-Pay (ToP). =========================================================================================================================== Automatic Generation Control (AGC), Economic Dispatch, Frequency Stability, Participation Factor, Take-or-Pay (ToP). |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Faisal Taufiq Rochman |
| Date Deposited: | 21 Jul 2026 10:07 |
| Last Modified: | 21 Jul 2026 10:07 |
| URI: | http://repository.its.ac.id/id/eprint/136095 |
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