Analisis Pengaruh BESS PLTS Terhadap Kestabilan Frekuensi Pada Sistem Kelistrikan Lombok

Hafiz, Jesa Andrian (2025) Analisis Pengaruh BESS PLTS Terhadap Kestabilan Frekuensi Pada Sistem Kelistrikan Lombok. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pulau Lombok merupakan salah satu pulau yang memiliki potensi besar dalam pengembangan energi terbarukan khususnya energi surya. Intergasi pembangkit listrik tenaga surya dalam sistem kelistrikan Lombok semakin besar dan menyeluruh dengan target bauran energi baru dan terbarukan dalam Rencana Umum Penyediaan Tenaga Listrik (RUPTL) 2021-2030. Dimana nantinya akan ada rencana pembangunan BESS dengan kapasitas 30 MW pada sistem kelistrikan Lombok pada tahun 2026/2027. Adanya PLTS memberikan tantangan baru dalam menjaga kestabilan frekuensi sistem. Karena pembangkitan PLTS yang bersifat intermitten sehingga menghasilkan energi listrik yang fluktuatif. Integrasi PLTS ke sistem dapat menyebabkan penurunan inersia sistem yang dapat mempengaruhi terhadap stabiltas sistem pada kondisi tertentu. Oleh karena itu, diperlukan Battrey Energy Storage System (BESS) untuk meredam osilasi maupun menahan nadir frekuensi ketika terjadi gangguan. Pada penelitian ini akan dilakukan pemodelan BESS dan dianalisis ketika sistem dilengkapi BESS untuk melihat respon frekuensi sistem kelistrik Lombok menggunakan software DIgSILENT PowerFactory versi 21 dengan memberikan studi kasus pembangkit terbesar lepas. Hasil penelitian menunjukkan bahwa ketika PLTS diintegrasikan pada sistem akan memperburuk nadir frekuensi karena sistem kekurangan inersia. Akan tetapi, ketika integrasi PLTS dilengkapi dengan BESS, nadir frekuensi meningkat atau BESS dapat menahan nadir frekuensi. Adanya BESS pada sistem ketika terjadi gangguan pembangkit lepas, nadir frekuensi dapat ditahan oleh BESS dan nilai RoCoF juga semakin membaik. Dimana BESS akan menyuplai sejumlah daya aktif untuk menahan nadir frekuensi sistem ketika terjadi gangguan
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Lombok Island is one of the islands with significant potential for the development of renewable energy, particularly solar energy. The integration of solar power plants into the Lombok power system is becoming increasingly extensive and comprehensive in line with the renewable energy mix targets set in the Electricity Supply Business Plan 2021–2030. There are plans to build a 30 MW Battrey Energy Storage System (BESS) in the Lombok power system in 2026/2027. The presence of solar power plant presents new challenges in maintaining the frequency stability of the system, due to its intermittent nature which results in fluctuating electricity generation. The integration of solar power plant into the system may reduce the system inertia, which in certain conditions can negatively affect system stability. Therefore, a BESS is required to dampen oscillations and support frequency nadir during disturbances. This study involves modeling the BESS and analyzing the system response when BESS is included, using DIgSILENT PowerFactory version 21, by simulating a case study where the largest generator is disconnected. The results show that when solar power plant is integrated into the system, the frequency nadir worsens due to a lack of system inertia. However, when the solar power plant integration is supported with BESS, the frequency nadir improves or BESS is able to hold the nadir. With BESS present in the system during generator outage disturbances, the nadir frequency can be contained, and the RoCoF (Rate of Change of Frequency) also improves. BESS supplies a certain amount of active power to support the frequency nadir when a disturbance occurs.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	BESS, Stabilitas Frekuensi, PLTS, RUPTL, DIgSILENT PowerFactory, BESS, Frequency Stability, Solar Power Plant, RUPTL, DIgSILENT PowerFactory.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves).
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Jesa Andrian Hafiz
Date Deposited:	23 Jul 2025 02:21
Last Modified:	23 Jul 2025 02:21
URI:	http://repository.its.ac.id/id/eprint/120686

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