Optimasi Dispatch Pembangkit Listrik Pada Sistem Sulbagsel Menggunakan Dynamic Penalty Factor

Rahayu, Pinanggih (2026) Optimasi Dispatch Pembangkit Listrik Pada Sistem Sulbagsel Menggunakan Dynamic Penalty Factor. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem interkoneksi Sulbagsel merupakan sistem terbesar di pulau Sulawesi, dengan beban puncak tertinggi hingga semster 1 2025 sebesar 1990.40 MW yang tercapai pada 2 Mei 2025. Beban puncak tersebut telah mengalami kenaikan 3.26% dari realisasi beban puncak tahun 2024 yang diakibatkan masuknya beberapa Konsumen Tegangan Tinggi (KTT) Smelter dan beban gardu induk yang baru interkoneksi. Kenaikan beban puncak tersebut berpengaruh pada rugi daya transmisi, dimana rugi daya transmisi merupakan parameter penting yang digunakan untuk mengukur seberapa efisien sistem interkoneksi menyalurkan daya dari pembangkit ke pelanggan. Pemodelan perencanaan operasi eksisting hanya mengacu pada dispatch pembangkit untuk mendapatkan biaya pokok produksi yang paling murah sehingga parameter rugi daya transmisi tidak diperhitungkan dalam model optimasi. Untuk mendapatkan model yang dapat mengakomodir biaya pokok produksi dan rugi daya transmisi maka ditambahkan nilai penalty factor dinamis pada model eksisting. Penalty factor merupkan faktor pengali yang digunakan dalam persamaan economic dispatch untuk lokasi pembangkit berdasarkan konfigurasinya di dalam sistem interkoneksi. Dalam periode simulasi 1 bulan, model eksisting + dynamic penalty factor mampu mereduksi rugi daya transmisi sebesar 261,976.68 kWh (turun 0.0223%), namun menaikkan biaya produksi sebesar Rp. 142,831,805.11 (naik 0.1218 Rp/kWh). Walaupun demikian, jika energi rugi daya transmisi dikonversi kedalam biaya, maka energi tersebut setara dengan Rp. 378,477,709.60, sehingga model eksisting + dynamic penalty factor mampu memberikan penghematan finansial sebesar Rp. 235,645,904.49 atau setara Rp. 7,601,480.79 / hari.
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The Sulbagsel interconnection system is the largest system on Sulawesi Island, with the highest peak load until the first semester of 2025 at 1990.40 MW, which was achieved on May 2, 2025. The peak load has increased by 3.26% from the 2024 peak load realization caused by the entry of several high-voltage industrial smelting consumers and newly interconnected substation loads. The increase in peak load affects transmission power losses, where transmission power losses are an important parameter used to measure how efficiently the interconnected system delivers power from power plants to customers. The existing operational planning modeling only refers to generator dispatch to obtain the cheapest cost of production so that the transmission power loss parameter is not considered in the optimization model. To obtain a model that can accommodate the cost of production and transmission power losses, a dynamic penalty factor value is added to the existing model. The penalty factor is a multiplier factor used in the economic dispatch equation for power plant locations based on their configuration in the interconnection system. In a 1-month simulation period, the existing model + dynamic penalty factor was able to reduce transmission power losses by 261,976.68 kWh (down 0.0223%), but increased production costs by Rp. 142,831,805.11 (up 0.1218 Rp/kWh). However, if the transmission power loss energy is converted into costs, the energy is equivalent to Rp. 378,477,709.60, so the existing model + dynamic penalty factor was able to provide financial savings of Rp. 235,645,904.49 or equivalent to Rp. 7,601,480.79 / day.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Economic Dispatch, Dynamic Penalty Factor, Biaya Pokok Produksi, Rugi Daya Transmisi, Economic Dispatch, Dynamic Penalty Factor, Production Cost, Transmission Losses
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1322.6 Electric power-plants
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis
Depositing User:	Pinanggih Rahayu
Date Deposited:	31 Jul 2026 02:31
Last Modified:	31 Jul 2026 02:31
URI:	http://repository.its.ac.id/id/eprint/140249

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