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Journal : Energi

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PEMBAGIAN PEMBANGKITAN SISTEM PEMBANGKIT TERMAL PADA KONDISI BEBAN YANG BERUBAH TERHADAP WAKTU MENGGUNAKAN QUADRATIC PROGRAMMING Redaksi Tim Jurnal
Energi & Kelistrikan Vol 10 No 1 (2018): Energi & Kelistrikan
Publisher : Sekolah Tinggi Teknik PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (738.603 KB) | DOI: 10.33322/energi.v10i1.331

Abstract

Power plant distribution by considering load change towards time is the development of conventional power distribution because it calculates the ramp rate unitr parameter of power plant. Power distribution of thermal power plant under the load condition that change toward time is used to determine the optimum generation schedule so that it can fulfill the load demand with minimum operational cost when sharing the limitation of system and operation throughout the whole period of generation. Spinning reserve is also considered in power plant distribution, since spinning reserve is used for maintaining the system’s constraint of each operations. In this case, if one unit of power plant is failed, there must be any capacity that could supply the power from another unit to accomplish such condition that happens within a period. This research uses quadratic programming to accomplish power distribution that calculates load change toward time, thus solve power distribution without trespassing the ramp rate parameter and spinning reserve which has been specified. Three unit of power plants were used in this research with short - term load demand and specified ramp rate . From the analysis of results, it can be seen that quadratic programming is not violate constrain ramp rate of power plant, whilst conventional method can not do the calculation of generation with a ramp rate constraint. The result analysis also shows that generation cost using quadratic programming is cheaper ($46659,49) compared to that of conventional method ($47064,01).
ANALISIS KELAYAKAN TURBIN ANGIN KECEPATAN RENDAH TIPE NT1000W DI WILAYAH TERPENCIL Redaksi Tim Jurnal
Energi & Kelistrikan Vol 10 No 1 (2018): Energi & Kelistrikan
Publisher : Sekolah Tinggi Teknik PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (934.437 KB) | DOI: 10.33322/energi.v10i1.332

Abstract

This research discusses the fulfillment of the electricity needs of remote communities that are closely related to electrification ratios. Electrification ratios in some isolated areas and scattered islands in Indonesia are still very low. To date, most of the electricity needs in Indonesia is still supplied by Diesel Power Electricity Generator (PLTD) which uses diesel as its fuel. Therefore, it is necessary the utilization of renewable energy as one step to fulfill the electrical energy needs. This research studies about the utilization of wind energy with PLTB by using low speed wind turbine to fulfill the electricity needs of remote communities and scattered islands in Indonesia. NT1000W is the latest technology of low speed wind turbine that can operate at wind speed of 1 m/d up to 60 m/d appropriate to the wind conditions in Indonesia. Testing conducted in west Sumatera particularly in Padang city and Kapo-Kapo Island provide a feasibility of PLTB NT1000W technically and financially.
Co-Authors Abdul Haris Ahmad Yani Beni Saputra