Optimasi Operasi Sistem Tenaga Listrik Dan Gas Alam Terintegrasi Mempertimbangkan Resiliensi Sistem

Arif, Muhamad Ilham (2022) Optimasi Operasi Sistem Tenaga Listrik Dan Gas Alam Terintegrasi Mempertimbangkan Resiliensi Sistem. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Optimal Power and Gas Flow (OPGF) merupakan masalah paling mendasar dalam sistem kelistrikan dan gas alam terintegrasi. Tingkat konsumsi gas yang bervariasi dari waktu ke waktu terutama oleh gas-fired unit (GFU) menyebabkan fluktuasi tekanan pada jaringan pipa transmisi gas dapat berdampak negatif pada keamanan dan keandalan pengiriman gas. Pengoperasian sistem juga harus mampu menjaga keamanan sistem apabila terjadi gangguan agar keberlagsungan sistem tetap bisa dipertahankan. Oleh karena itu, perhitungan OPGF perlu mempertimbangkan keamanan sistem melalui analisis kontingensi sehingga mampu meminimalisir biaya operasi sistem, sekaligus menjaga keamanan sistem. Penelitian ini akan memberikan penyelesaian OPGF menggunakan Mixed-Integer Linear Programming (MILP) serta analisis kontingensi pada saluran listrik memanfaatkan salah satu faktor sensitifitas linear yaitu Line Outage Distribution Factor (LODF). Penelitian ini dilakukan dengan bantuan software MATLAB. Dari penelitian yang telah dilakukan, biaya pembangkitan listrik meningkat dari dari $58.16/MW menjadi $58.203/MW untuk sistem kecil dan $9.73/MW menjadi $10.62/MW untuk sistem besar apabila menggunakan batasan keamanan hasil screening kontingensi. Dengan menurunkan kapasitas saluran, biaya pembangkitan listrik pun meningkat kembali menjadi $58.69/MW untuk sistem kecil dan $10.66/MW untuk sistem besar. Apabila menambahkan hasil screening kontingensi, biaya pembangkitan listrik menjadi $94.6/MW untuk sistem kecil dan $12.26/MW untuk sistem besar dengan diikuti pelepasan sejumlah beban karena konvergensi tidak tercapai. Dari hasil simulasi yang didapat, dapat ditarik kesimpulan bahwa dengan menambahkan batasan keamanan hasil screening kontingensi, biaya pembangkitan listrik semakin mahal. Akan tetapi, penambahan batas keamanan ini dapat menjaga keandalan dan keberlangsungan sistem saat terjadi pemutusan salah satu saluran.
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Optimal power and gas flow (OPGF) is the most fundamental problem in integrated electricity and natural gas systems. The level of gas consumption that varies from time to time especially by gas-fired units (GFU) causes pressure fluctuations in gas transmission pipelines which can have a negative impact on the safety and reliability of gas delivery. The operation of the system must also be able to maintain system security in the event of a disturbance so the system can maintain its continuity. Therefore, OPGF calculations need to consider system security through contingency analysis so as to minimize system operating costs, while maintaining system security. This study will provide a solution for OPGF using Mixed-Integer Linear Programming (MILP) and contingency analysis on power lines using one of the linear sensitivity factors, namely Line Outage Distribution Factor (LODF). This research was conducted with the help of MATLAB software. From the research that has been done, the cost of electricity generation increased from from $58.16/MW to $28.203/MW for small systems and $9.73/MW to $10.62/MW for large systems when using the result of contingency screening as a safety constraints. By lowering line capacity, the cost of generating electricity increased again to $58.69/MW for small systems and $10.66/MW for large systems. When adding the results of the contingency screening, the cost of generating electricity becomes $94.6/MW for a small system and $12.26/MW for a large system followed by the release of a number of loads because convergence is not achieved. From the simulation results obtained, it can be concluded that by adding the safety limit of the contingency screening results, the cost of generating electricity is getting more expensive. However, the addition of this security limit can maintain the reliability and continuity of the system in the event of a disconnection of one line.

Item Type:	Thesis (Other)
Additional Information:	RSMI 621.24 Akb p-1 2022
Uncontrolled Keywords:	Sistem tenaga listrik. Sistem gas alam. Resiliensi sistem. Electric power system. Natural gas system. System resilience.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	12 Jun 2026 02:48
Last Modified:	12 Jun 2026 02:48
URI:	http://repository.its.ac.id/id/eprint/133757

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