Kusuma, Ferdyan Hijrah (2026) Peningkatan Keandalan Sistem Kelistrikan 150 kV Daerah Khusus Berbasis Analisis Risiko Dengan Metode Failure Mode Effect Analysis (FMEA). Masters thesis, Institut Technology Sepuluh Nopember.
![[thumbnail of 6047231029-Master_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
6047231029-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (7MB) | Request a copy |
Abstract
Keandalan sistem tenaga listrik merupakan faktor fundamental dalam mendukung operasional Daerah Khusus yang dirancang sebagai kawasan strategis nasional dengan kebutuhan suplai listrik berkelanjutan dan bebas gangguan. Konfigurasi sistem 150 kV yang masih bersifat single radial menuju GIS Daerah Khusus menyebabkan kawasan ini sangat sensitif terhadap gangguan, khususnya pada koridor kritis SUTT 150 kV GI A – GIS. Penelitian ini bertujuan menganalisis risiko keandalan sistem kelistrikan 150 kV. Metode Failure Mode Effect Analysis (FMEA) diterapkan secara kuantitatif dan didukung oleh simulasi sistem tenaga menggunakan DigSilent PowerFactory untuk memperoleh nilai Energy Not Served (ENS), Laju Kegagalan (λ), serta pengaruh gangguan terhadap tegangan dan frekuensi sistem. Hasil simulasi menunjukkan bahwa gangguan permanen dua line pada koridor GI A – GIS menghasilkan ENS tertinggi sebesar 9,93 MWh dan menyebabkan padam total Daerah Khusus. Transformator pada GIS juga terbukti menjadi titik kritis karena tidak adanya jalur suplai cadangan. Perhitungan RPN menempatkan kedua aset tersebut sebagai prioritas mitigasi tertinggi. Tiga opsi mitigasi dibandingkan, yaitu pembangunan jalur transmisi cadangan 150 kV, penyediaan PLTD sewa, serta pembangunan jalur 150 kV PLTS–GIS. Analisis teknis dan finansial (NPV, IRR, PBP, BCR) menunjukkan bahwa pembangunan jalur transmisi baru merupakan solusi paling optimal, karena mampu memenuhi kriteria N-1/N-2, mengurangi ENS secara signifikan, serta layak secara ekonomi. Opsi PLTS–GIS juga menunjukkan kelayakan, namun terbatas pada jam siang karena sifat intermitensi PLTS. Adapun opsi PLTD dinilai tidak layak finansial dan tidak sejalan dengan konsep green city. Penelitian ini memberikan kerangka evaluasi risiko yang komprehensif dalam perencanaan keandalan jaringan 150 kV, serta rekomendasi strategis untuk memastikan suplai listrik yang andal, modern, dan berkelanjutan pada Daerah Khusus.
==================================================================================================================================
Power system reliability is a critical requirement for supporting the operational continuity of the Special Region, a national strategic area that demands a secure and uninterrupted electricity supply. The current 150-kV configuration supplying the area remains a single radial system, creating high vulnerability to contingencies, particularly along the GI A–GIS corridor. This study analyzes the reliability risks of the 150-kV network while considering the integration of a 50-MWac solar power plant (PLTS). A quantitative Failure Mode and Effect Analysis (FMEA) is employed, supported by DigSilent PowerFactory simulations to obtain Energy Not Served (ENS), failure rates (λ), and system response to disturbances in voltage and frequency. Simulation results indicate that a permanent double-line outage on the GI A–GIS transmission corridor produces the highest ENS value of 9.93 MWh and leads to a complete blackout of the Special Region. Transformer failures at the GIS are also critical due to the absence of alternative supply paths. The calculated RPN confirms these components as the highest-priority risks requiring immediate mitigation. Three mitigation options were evaluated: constructing a new 150-kV backup transmission line, deploying rental diesel generators (PLTD), and developing a 150-kV PLTS–GIS connection. Technical and financial analyses (NPV, IRR, Payback Period, BCR) show that a new 150-kV transmission corridor is the most effective solution, offering compliance with N-1/N-2 criteria, significant ENS reduction, and strong economic feasibility. The PLTS–GIS connection is also feasible but limited to daytime availability due to solar intermittency, while the PLTD option is financially unviable and misaligned with sustainability goals. This research provides a comprehensive reliability-risk assessment framework and proposes strategic recommendations to strengthen the resilience, continuity, and sustainability of the 150-kV power system supplying the Special Region.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Daerah Khusus, DigSilent, ENS, FMEA, Risiko Keandalan Special Region, DigSilent, ENS, FMEA, Reliability |
| Subjects: | T Technology > T Technology (General) > T174.5 Technology--Risk assessment. |
| Divisions: | Interdisciplinary School of Management and Technology (SIMT) > 78201-System And Technology Innovation |
| Depositing User: | Ferdyan Hijrah Kusuma |
| Date Deposited: | 19 Jan 2026 03:13 |
| Last Modified: | 19 Jan 2026 03:13 |
| URI: | http://repository.its.ac.id/id/eprint/129696 |
Actions (login required)
 |
View Item |