Nurhasyimi, Almira Atha (2019) Penentuan Letak Supercapacitor Energy Storage (SCES) Berdasarkan Metode Critical Trajectory untuk Memperbaiki Nilai Critical Clearing Time (CCT). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kestabilan sistem merupakan salah satu aspek penting yang harus diperhatikan guna menjaga kontinuitas dan reliabilitas sistem tenaga listrik. Ketika sistem mengalami gangguan besar, maka perlu dilakukan studi kestabilan transien untuk memastikan bahwa sistem mampu mempertahankan sinkronisasinya pada kondisi transien. Agar sistem dapat stabil, gangguan harus segera dihilangkan dengan mempertimbangkan waktu pemutusan kritis atau Critical Clearing Time (CCT). Jika waktu pemutusan gangguan oleh sistem proteksi melebihi nilai CCT, maka sistem akan menjadi tidak stabil. Untuk meningkatkan jaminan kestabilan sistem, maka Supercapacitor Energy Storage (SCES) dipasang pada salah satu bus generator dalam sistem. Pada tugas akhir ini akan dilakukan pencarian bus generator yang tepat sebagai lokasi peletakan SCES. Pemilihan lokasi peletakan SCES terbaik dilakukan berdasarkan nilai CCT sistem yang diperoleh menggunakan metode Critical Trajectory. Lintasan kritis (critical trajectory) merupakan lintasan yang dimulai dari suatu titik pada lintasan saat terjadinya gangguan (fault-on trajectory) hingga mencapai suatu titik kritis di mana sistem kehilangan sinkronisasi. Hasil simulasi menunjukkan bus generator 2 (bus 2) sebagai lokasi peletakan SCES terbaik untuk sistem Fouad dan Anderson 3-machine 9-bus dengan peningkatan nilai rata-rata CCT sistem sebesar 4,97%. Sementara untuk sistem IEEE 7-machine 57-bus, bus generator 5 (bus 8) dipilih sebagai lokasi peletakan SCES terbaik dengan peningkatan nilai rata-rata CCT sistem sebesar 4,27%.
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System stability is an important aspect that should be observed to maintain the continuity and reliability of the electrical power system. When a large disturbance occurs in a system, transient stability studies are needed to conduct to ensure that the system can withstand the transient condition. The system will remain stable if the fault in a system is immediately removed by considering the Critical Clearing Time (CCT). If the protection equipment operates after the value of CCT, the system becomes unstable. In order to improve system stability, a Supercapacitor Energy Storage (SCES) installed on a generator bus. In this final project, a search for the right generator bus as the location for SCES placement will be carried out. The best location for SCES placement is selected based on the system CCT values obtained using the Critical Trajectory method. The critical trajectory is defined as the trajectory that starts from a point on a fault-on trajectory and reaches a critical point that satisfies a set of condition of losing synchronism. The simulation result shows generator bus number 2 as the best placement location of SCES for Fouad and Anderson 3-machine 9-bus system with an increase of the system’s CCT average values of 4,97%. While for the IEEE 7-machine 57-bus system, generator bus number 5 chosen as the best placement location of SCES with an increase of the system’s CCT average values of 4,27%.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.319 21 Nur p-1 2019 |
| Uncontrolled Keywords: | Kestabilan Transien, Critical Clearing Time (CCT), Critical Trajectory, Supercapacitor Energy Storage (SCES) |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves). |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Almira Atha Nurhasyimi |
| Date Deposited: | 20 Jan 2023 03:19 |
| Last Modified: | 20 Jan 2023 03:19 |
| URI: | http://repository.its.ac.id/id/eprint/63528 |
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