Fitri, Maratus Shalikhah Nur (2023) Koordinasi Proteksi Pengaturan Ganda Directional Overcurrent Rele (Docr) Untuk Jaringan Ring Pada Amurea 2 Menggunakan Adaptive Modified Firefly Algorithm (Amfa). Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Koordinasi proteksi memiliki peran yang penting pada desain sistem tenaga untuk mengenali kondisi yang tidak normal, menggerakan pemutus sirkuit untuk mengisolasi daerah gangguan sehingga mengamankan peralatan pada sistem tenaga. Sistem jaringan di lapangan memiliki beberapa jenis salah satunya sistem ring/loop PT. Petrokimia, dimana jaringan sistem ring/loop aliran arus dua arah tidak dapat dihindari dan memiliki nilai arus atau arus gangguan yang berbeda. Sehingga penggunaan Directional Overcurrent Rele (DOCR) menjadi pilihan yang tepat untuk sistem ring, karena respon yang cepat, serta fleksibilitas dalam pengaturan koordinasinya. Penentuan nilai TDS, arus pickup (Ip) dan waktu operasi rele yang responsif dan tepat untuk jaringan sistem ring/loop PT Petrokimia pada penelitian ini menggunakan Adaptive Modified Firefly Algorithm (AMFA) untuk mendapatkan nilai optimum rele DOCR .Penggunaan algoritma tersebut untuk menentukan nilai TDS (time dial setting), pendekatan sistem koordinasi rele arus lebih dengan menggunakan turunan waktu trip yang bertujuan untuk memperoleh TDS yang optimum sehingga didapatkan waktu trip yang lebih cepat sehingga mengindari kegagalan proteksi. Sehingga dapat mengamankan sistem, khususnya pada sistem yang memiliki sumber yang berbeda dalam satu jaringan. Nilai TDS hasil optimasi AMFA akan dibandingkan dengan perhitungan manual. Bedasarkan hasil total nilai TDS AMFA menghasilkan total kerja rele lebih tepat serta sesuai kaidah dengan CTI 0,2 detik untuk relai backup.
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Protection coordination has an important role in power system design to recognize abnormal conditions and actuate circuit breakers to isolate fault areas to secure equipment in the power system. There are several types of network systems in the field, one of which is the PT ring/loop system. Petrochemical, where the two-way flow ring/loop system network cannot be avoided and has different current values or fault currents. So the use of Directional Overcurrent Rele (DOCR) is the right choice for ring systems, because of its fast response, as well as flexibility in coordinating arrangements. Responsive and precise determination of TDS value, pickup current (Ip), and rele operating time for PT Petrokimia's ring/loop network system in this study used the Adaptive Modified Firefly Algorithm (AMFA) to obtain the optimum value of the DOCR rele. The use of this algorithm to determine the TDS value (time dial setting), overcurrent rele coordination system approach using trip time derivatives which aims to obtain the optimum TDS to obtain a faster trip time and to avoid protection failure. So that it can secure the system, especially on systems that have different sources in one network. The TDS value of AMFA optimization results will be compared with manual calculations. Based on the results of the total AMFA TDS value, the total work is more precise and according to the rules with a CTI of 0.2 seconds for the backup relay.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | DOCR, Koordinasi Proteksi, Adaptive Modified Firefly Algorithm (AMFA), sistem ring/loop ===================================================================== Protection system, algorithm, Inrush Current Transformer, Adaptive Modified Firefly Algorithm (AMFA) |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2861 Electric relays |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis |
| Depositing User: | Mar'atus Shalikhah Nur Fitri |
| Date Deposited: | 20 Jul 2023 07:45 |
| Last Modified: | 20 Jul 2023 07:45 |
| URI: | http://repository.its.ac.id/id/eprint/98723 |
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