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Mahalla, Mahalla

Politeknik Negeri Lhokseumawe

Author-ID : 1991993

Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Other

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The Reconfiguration of Network at 20 kV Distribution System Nagan Raya Substation with the Addition of the Krueng Isep Hydroelectric Power Plant Ediwan, Ediwan; Muliadi, Muliadi; Mahalla, Mahalla; Nazaruddin, Nazaruddin; Mulkan, Andi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Switching substations are usually supplied from one express feeder which can cause a low level of reliability due to disruption or outage on the express feeder. Also, the lack of power supply at the ends of the network causes voltage drops. One way to solve this problem is to reconfigure the network. In this study, testing was carried out on a distribution system in the Nagan Raya Regency, namely the distribution system of PT. PLN (Persero) ULP Jeuram originally had a radial system. Furthermore, the distribution system was reconfigured with the Krueng Isep hydroelectric power plant which was included in the PLN ULP Jeuram grid so that the system that was originally radial became a loop configuration. The method used in analyzing the network reconfiguration process is to use the ETAP 12.6 application. As a result, after reconfiguring the network the voltage increased from 19.2 kV to 20.7 kV, the highest increase was at the Beutong Substation which reached 1.5 kV and decreased power losses in the network with a total of 188.2 kW and 263.1 kVAR. Furthermore, before the network reconfiguration, ULP Jeuram SAIFI value was 22.25 times/customers and SAIDI values 1337.74 minutes/ customers. However, after reconfiguring the network, ULP Jeuram SAIFI value fell to 15.39 times/customers and SAIDI to 945.6 minutes/customers, resulting in an increase in system reliability by 70.69%.Keyword:Â Reconfiguration of network, distribution system, hydroelectric power plant, SAIDI, SAIFIÂ

The Reconfiguration of Network at 20 kV Distribution System Nagan Raya Substation with the Addition of the Krueng Isep Hydroelectric Power Plant Ediwan Ediwan; Muliadi Muliadi; Mahalla Mahalla; Nazaruddin Nazaruddin; Andi Mulkan
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Switching substations are usually supplied from one express feeder which can cause a low level of reliability due to disruption or outage on the express feeder. Also, the lack of power supply at the ends of the network causes voltage drops. One way to solve this problem is to reconfigure the network. In this study, testing was carried out on a distribution system in the Nagan Raya Regency, namely the distribution system of PT. PLN (Persero) ULP Jeuram originally had a radial system. Furthermore, the distribution system was reconfigured with the Krueng Isep hydroelectric power plant which was included in the PLN ULP Jeuram grid so that the system that was originally radial became a loop configuration. The method used in analyzing the network reconfiguration process is to use the ETAP 12.6 application. As a result, after reconfiguring the network the voltage increased from 19.2 kV to 20.7 kV, the highest increase was at the Beutong Substation which reached 1.5 kV and decreased power losses in the network with a total of 188.2 kW and 263.1 kVAR. Furthermore, before the network reconfiguration, ULP Jeuram SAIFI value was 22.25 times/customers and SAIDI values 1337.74 minutes/ customers. However, after reconfiguring the network, ULP Jeuram SAIFI value fell to 15.39 times/customers and SAIDI to 945.6 minutes/customers, resulting in an increase in system reliability by 70.69%.Keyword: Reconfiguration of network, distribution system, hydroelectric power plant, SAIDI, SAIFI

IMPLEMENTASI ALGORITMA GENETIKA DENGAN TOURNAMENT SELECTION SEBAGAI SOLUSI ECONOMIC DISPATCH Yassir Yassir; Fauzan Fauzan; Mahalla Mahalla
Jurnal DISPROTEK Vol 6, No 2 (2015)
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/jdpt.v6i2.261

Salah satu solusi untuk mengurangi kenaikan harga listrik adalah dengan melakukan optimisasi biaya pada proses produksi energi listrik. Economic Dispatch (ED) adalah salah satu metode untuk meminimilisasi biaya bahan bakar pembangkit dengan memperhitungkan rugi-rugi jaringan transmisi. Pada penelitian ini diaplikasikan metode Genetic Algorithm dengan tournament selection (AGTS) untuk menyelesaikan masalah ED. Efektifitas metode diuji pada kasus sistem IEEE 30 bus. Dari hasil simulasi, metode AGTS mampu menghasilkan solusi lebih ekonomis dibandingkan dengan metode Quadratic Programming. Kata kunci- Economic Dispatch; Genetic Algorithm; fitness; tournament selection. One solution to reduce the rise of electricity cost is to make cost optimization in the process of production of electrical energy. Economic Dispatch (ED) is one method to minimize the cost of generator fuel by taking into account losses transmission network. This study applied a method genetic algorithm with tournament selection (AGTS) to solve the problem of ED. The effectiveness of the method was tested in the case of IEEE 30 bus system. From the simulation results, AGTS method is able to produce a more economical solution than the method Quadratic Programming. Kata kunci- Economic Dispatch; Genetic Algorithm; fitness; tournament selection.

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