Astungkara, Rakaditra (2019) Penentuan Kapasitas Optimal Superkapasitor untuk Memperbaiki Critical Clearing Time (CCT) Menggunakan Metode Modifikasi Losing Synchronism. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Keandalan dan kontinuitas merupakan aspek penting pada suatu sistem kelistrikan. Ketersediaan suplai listrik dan sistem yang terinterkoneksi merupakan salah satu penunjang, namun hal ini menyebabkan kestabilan pada sistem menjadi semakin rumit sehingga kestabilan transien menjadi hal utama yang diperhitungkan. Gangguan pada sistem seperti arus hubung singkat tiga fasa dapat menyebabkan sistem menjadi tidak stabil dan generator kehilangan sinkron, oleh karena itu Critical Clearing Time (CCT) harus diperhitungkan untuk menjaga sistem tetap stabil. CCT merupakan waktu maksimum gangguan dapat ditoleransi. Sistem proteksi yang beroperasi setelah batas nilai CCT dapat menyebabkan gangguan lain pada sistem. CCT diperoleh menggunakan metode critical trajectory. Untuk memperbaiki nilai CCT pada sistem, maka perlu ditambahkan Super Capacitor Energy Storage (SCES). SCES dapat menyimpan dan mensuplai listrik dalam jumlah besar secara simultan sehingga dapat menjadi solusi untuk memperbaiki nilai CCT. Penentuan kapasitas optimum dari SCES yang akan dipasang pada sistem menjadi hal penting dikarenakan harga dari SCES yang mahal. Pada tugas akhir ini, optimasi nilai superkapasitor akan diperoleh menggunakan metode critical trajectory berbasis modifikasi losing synchronism. Nilai CCT akan berbanding lurus dengan penambahan SCES, sehingga perlu ditambahkan batasan yaitu setting proteksi sehingga dapat diketahui kapasitas optimal dari SCES.
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Reliability and continuity are important aspects of an electrical system. Improving the electricity supply and interconnected the system are the main supports, but this condition causes stability in the system more complex, so transient stability analysis becomes the main thing. Interference in systems such as three-phase short-circuit can cause the system to become unstable and the generator losing its synchronism, therefore it is important to consider critical clearing time (CCT) . CCT is the maximum time that can be tolerated to keep the system stable. Protection systems that operated after the CCT value can cause other disruptions to the system. To improve the CCT value to the system, Super Capacitor Energy Storage (SCES) is needed. SCES can store and supply large amounts of electricity simultaneously so that it can be a solution to improve CCT values. Determining the optimal capacity of SCES to be installed on the system is important for the price of expensive SCES. In this final project, optimization of the value of supercapacitors will be obtained using a critical path method based on modified losing synchronism. The CCT value will be directly proportional to the addition of SCES, so protection setting is a constrain for the case, than the optimal capacity of SCES can be known.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.319 21 Ast p-1 2019 |
| Uncontrolled Keywords: | kestabilan transien, critical clearing time, supercapasitor energy storage, critical trajectory |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering 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: | Rakaditra Astungkara |
| Date Deposited: | 13 Mar 2023 04:18 |
| Last Modified: | 13 Mar 2023 04:18 |
| URI: | http://repository.its.ac.id/id/eprint/63762 |
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