Seng, Ou (2023) Optimal Protection Coordination In Real Fertilizer Industrial Ring Distribution System In Indonesia Based On Dual Setting Directional Overcurrent Relays. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Efficient and reliable protection coordination is crucial for ensuring the safe and consistent operation of electrical distribution systems, particularly in the industrial system. In this study, an adaptive modified firefly algorithm (AMFA) approach is employed to coordinate the operation of dual-setting directional overcurrent relays (DOCRs) in the ring industrial distribution system. The coordination process’s major goal is to discover the ideal settings for relay configurations regarding the time dial setting (TDS) and pickup current (I_p) to minimize the total operating time (TOP) for the primary and backup relays in the system. The dual-setting protection functionality is also proposed to operate in both forward and reverse directions with individual time current characteristics (TCC) curves for each direction. The AMFA method is applied within a dual-setting protection scheme in real fertilizer industrial ring distribution system and is effective in minimizing the total operating time of the fault on each bus to a significant minimum with the CTI value of relay pairs that are equal to or greater than 0.2 seconds. The iteration of the objective function employing the AMFA method converges considerably faster than the conventional FA approach. The AMFA has been successfully developed in MATLAB 2019b, and ETAP 12.6.0 software has been used to confirm relay coordination.
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Koordinasi sistem proteksi yang efisien dan handal sangat penting untuk memastikan pengoperasian sistem distribusi listrik yang aman dan konsisten, khususnya dalam sistem industri. Dalam studi ini, pendekatan algoritma kunang-kunang yang dimodifikasi adaptif (AMFA) digunakan untuk koordinasi relai arus lebih berarah pengaturan ganda (DOCR) dalam sistem distribusi industri tipe ring. Tujuan utama proses koordinasi adalah untuk menemukan pengaturan yang ideal untuk konfigurasi relai terkait pengaturan Time Dial Setting (TDS) dan arus pickup (pickup (llpp) untuk meminimalkan total waktu operasi (TOP) untuk relai utama dan cadangan dalam sistem. Fungsi perlindungan pengaturan ganda juga diusulkan untuk beroperasi pada arah maju dan mundur dengan kurva karakteristik arus waktu (TCC) individual untuk setiap arah. Metode AMFA diterapkan dalam skema proteksi dual-setting pada sistem distribusi ring industri pupuk riil dan efektif dalam meminimalkan total waktu operasi gangguan pada setiap bus hingga minimum yang signifikan dengan nilai CTI pasangan relai yang sama dengan atau lebih dari 0.2 detik. Iterasi fungsi tujuan yang menggunakan metode AMFA konvergen jauh lebih cepat dibandingkan pendekatan FA konvensional. AMFA telah berhasil dikembangkan pada software MATLAB 2019b, dan perangkat lunak ETAP 12.6.0 telah digunakan untuk memastikan koordinasi relai.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Directional Overcurrent Relay (DOCR), Dual-Setting Protection Scheme, Adaptive Modified Firefly Algorithm (AMFA), Ring Distribution System |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2861 Electric relays T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3030 Electric power distribution systems |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis |
| Depositing User: | OU SENG |
| Date Deposited: | 20 Jul 2023 02:51 |
| Last Modified: | 20 Jul 2023 02:51 |
| URI: | http://repository.its.ac.id/id/eprint/98658 |
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