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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM TELKOMNIKA (Telecommunication Computing Electronics and Control) PROSIDING CSGTEIS 2013 Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology Indonesian Journal of Electrical Engineering and Computer Science Journal of Applied Science, Engineering, Technology, and Education Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal SPEKTRUM Journal of Electrical, Electronics and Informatics
Wayan Gede Ariastina
Study Program Of Electrical Engineering, Faculty Of Engineering,Udayana University
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Other

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Operation Management Scenarios of Medium Voltage Distribution 20 kV with PV Rooftop Penetration Intan Aprilia Medina; I. A. Dwi Giriantari; W. G. Ariastina
Journal of Electrical, Electronics and Informatics Vol 6 No 1 (2022): JEEI (December 2022)
Publisher : Institute for Research and Community Services Udayana University

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Abstract

The availability of renewable energy in various sectors certainly needs to be improved, one of which is Solar Power Plant or PV. The province of Bali has a Solar Power Plant (PV) development target of 108 MW by 2025. The Solar Power Plant target has been stated in the RUEN (National Energy General Plan) policy. Efforts made by the Province of Bali to support and to realize the RUEN target are in the Bali Governor Regulation (Pergub) No. 45 of 2019 concerning "Clean Energy Bali". One of the areas in Bali that can be developed as a PV development is Nusa Dua area. In this area, the integration of conventional grid systems and renewable energy (PV Rooftop) can be carried out. In this journal, the author proposes several scenarios that are expected to be considered in planning the integration of a 20 kV grid system with renewable energy power plants. Some of these ideas are the integration of 25%, 50%, and 100% of PLTS capacity in meeting electrical energy needs. The purpose of the scenario is to find out the direction of the flow supplied by the PV, and to know whether the grid will remain stable or not if disturbance occurs.
PENGEMBANGAN JARINGAN TRANSMISI 150 KV BALI BERDASARKAN RENCANA UMUM KETENAGALISTRIKAN DAERAH (RUKD) PROVINSI BALI TAHUN 2022 – 2030 I G.N. Evan Aditya Pramana; W.G. Ariastina; I.W. Sukerayasa
Jurnal SPEKTRUM Vol 10 No 1 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i01.p3

Abstract

The need for electrical energy increases every year. That is linear with the economic growth that happens in the area. Bali is an area where the demand for electrical energy has increased significantly throughout the year. The increase in electrical energy demands will cause the power peak load to increase as well. It's necessary to develop a 150 kV transmission system to anticipate peak load from reaching the breakdown point of the transmission system. Based on this study, the transmission line from Kapal Substation to Pemecutan Klod Substation experienced 80.1% of the maximum load capacity of the line in 2029. It means that the load flow has exceeded the ideal loading of the transmission line, which is 80% of its maximum capacity. Uprating the conductor from TACSR 240 mm2 to ACCC Lisbon 310 mm2 and adding a new circuit line, will help the transmission line sustainable until 2046 before reaching 100% of its maximum capacity.
RANCANGAN PLTS ATAP GEDUNG GEREJA METHODIST INDONESIA MANNA HELVETIA Kenny Angel Manik; Wayan Gede Ariastina; Ida Ayu Dwi Giriantari
Jurnal SPEKTRUM Vol 10 No 1 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i01.p8

Abstract

Indonesia have potential sunshine over year, it makes indoensia has a large source of renewable energy. However, renewable energy usage is very low. One of the renewable energy is solar power plants (PLTS). Medan City is one of the highly populated cities and it makes Medan city very limited land to build PLTS, and the solution is to build rooftop PLTS. Therefore, this research discusses the planning of PLTS on the roof of the Manna Helvetai Indonesian Methodist Church Building. The design of this PLTS is simulated using the Helioscope simulator. Solar modules are installed as many as 35 pieces and have 1 inverter with a capacity of 20 kW and produce potential energy of 15.8 kWp. Based on the results of the rooftop solar power plant design and the results of the calculation of electrical energy production, it can be analyzed that the economic development of rooftop solar power plants is considered feasible because it meets the criteria of Net Present Value (NPV) greater than zero, namely Rp 44,638,904 and Benefit-Cost Ratio (B-CR) greater than one, namely 1.19 and Discounted Payback Period (DPP) which is reached at the life of the solar power plant.
PENGARUH KETIDAKSEIMBANGAN BEBAN TERHADAP PROFIL JARINGAN TEGANGAN RENDAH I Kadek Krisna Yoga; Rukmi Sari Hartati; Wayan Gede Ariastina
Jurnal SPEKTRUM Vol 10 No 2 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i02.p1

Abstract

Load imbalance occurs due to unequal distribution of load in each phase, this can occur in low voltage network distribution lines, one of which occurs in the DS0588 transformer, Merdeka feeder, Denpasar. Based on the data obtained, the percentage of DS0588 transformer load unbalance is 14%. The DS0588 transformer is one of the transformers at the Merdeka Denpasar Feeder with a capacity of 160 kVA which is located on Jalan Badak Agung, Renon Denpasar. Load unbalance data obtained at PLN UP3 South Bali. The research was carried out by the method of redistribution of the load on each phase under unbalanced load conditions, so that the total load of the three phases is the same or close. The results obtained were that the percentage of unbalanced loads in unbalanced conditions was 14% and when balanced conditions decreased to 2.2%. The losses in the distribution network when the unbalanced condition is 25 kW and the balanced condition drops to 23.3 kW, this shows that the load imbalance has an effect on the low voltage network losses. The higher the load imbalance, the higher the losses incurred.
ANALISIS PENGARUH VARIASI DEBIT AIR TERHADAP KECEPATAN PUTARAN TURBIN CROSSFLOW PADA PEMBANGKIT LISTRIK TENAGA MIKROHIDRO N. A. Kartono; C. G. Indra Partha; W. G. Ariastina; I. A. D. Giriantari; I N. Satya Kumara; I W. Sukerayasa
Jurnal SPEKTRUM Vol 10 No 2 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i02.p6

Abstract

The Yeh Dikis River in Tabanan Regency Bali has a natural environment which is considered suitable to be used as a tourism destination. The factor that supports the Yeh Dikis River to become a tourism object is the river's potential to generate electricity. In this paper, a particular turbine for micro-hydro power plant is designed. The Yeh Dikis River has a water discharge of 0.381 m3/s with a head value of 8.2 meters, with a potential output power of 18.15 kW. The value of the water discharge and the output power are used to determine the type of turbine used. The computation and simulation showed that the crossflow turbine is suitable for the power plant. The analysis showed that a water discharge of 0.381 m3/s with a penstock diameter of 0.44 meters produces a specific rotational speed of 186 rpm; while a water discharge of 0.381 m3/s with a penstock diameter of 0.55 meters produces a turbine specification rotation speed of 160 rpm. This indicated that the effective head value affects the determination of the penstock diameter and the water velocity. The smaller diameter of the penstock produces, the higher the velocity of the water flow in the pipe. A low effective head will result in a low specific rotational speed. It was found that the optimum turbine power output for a water discharge of 0.381 m3/s with a penstock diameter of 0.44 meters is 18.15 kW. The work of the crossflow turbine is validated using a turbine simulator to determine the rotational speed of the turbine for a particular torque.
PERANCANGAN SISTEM POMPA AIR SUNGAI YEH HA UNTUK MEMENUHI KEBUTUHAN AIR MASYARAKAT DESA ABABI Derren, M.; Ariastina, W. G.; Setiawan, I N.; Giriantari, I. A. D.; Sukerayasa, I W.; Satya Kumara, I N.
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Kayuan Yeh Ha serves as a clean water source located in Ababi Village, Karangasem Regency. The flow from Kayuan Yeh Ha is utilized for both bathing dan consumption by the surrounding residents. Originating from the Yeh Ha spring, Kayuan Yeh Ha is extensively utilized to fulfill the needs of the local community. In order to meet the water requirements of the local populace, a water storage tank with a capacity of 58.74 m3 was initially established to distribute water to 10 households. In the year 2020, a water wheel was employed to power a mechanical pump without electricity to fill the storage tank. After operating for one year, the water wheel experienced shaft damage, necessitating its replacement with a hydraulic ram pump. However, the hydraulic ram pump only utilizes one-fifth of the available water flow, thereby rendering it less effective. Consequently, this research aims to design an electric water pump system powered by a new renewable energy source. The implementation of this electric water pump is expected to enhance the efficiency of filling the storage tank. Based on measurements dan calculations, the micro-hydro power plant system (PLTMH) is estimated to produce a power output of 6kW. Pump selection is determined by electrical power calculations, water discharge, dan pump prices, leading to the adoption of the Pedrollo F50-160B centrifugal pump capable of delivering a water discharge of 56m3/hour at a head of 25 meters. The Pedrollo F50-160 pump utilizes a 3-phase squirrel cage induction motor generating a power output of 5.5kW. Pipe losses dan fittings are also calculated using Pipeflow Expert software, resulting in a water discharge of 31.687 m3/hour. The pump will be operated at maximum capacity for 24 hours, enabling it to deliver a water discharge of 763,620 m3/day, sufficient to meet the clean water needs of 12,277 individuals or 2,455 families. Achieving this water usage target also necessitates piping to households from the storage tank, totaling 35,900 meters in length with an 80mm diameter dan 49,100 meters of 16mm diameter piping. This system is also equipped with a variable frequency drive or inverter device to enhance the efficiency of the electric pump dan reduce starting current surges, simulated for its performance through Simulink software.
PERANCANGAN JARINGAN DISTRIBUSI UNTUK PLTS TERAPUNG DAN PLTMH DI BENDUNGAN SIDAN Sari, N. P. A. R.; Ariastina, W. G.; Setiawan, I. N.; Partha, C. G. I.; Sukerayasa, I W.; Kumara, I. N. S.
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p17

Abstract

Blahkiuh Feeder is a 20 kV radial distribution network spanning 78.65 kms, which is the longest network in the Mengwi Network Unit. The length of the distribution lines also results in relatively high power losses. Therefore, the installation of distributed generation (DG) utilizing the potential of solar photovoltaic (PV) and micro-hydro power plants (MHP) available at the Sidan Dam has the potential to improve voltage drop and power loss values on the Blahkiuh Feeder. This research was conducted to analyze voltage and power losses due to DG installation at the Sidan Dam, with power flow simulation during peak daytime load at 14:00 and peak nighttime load at 19:00. Simulation results indicate that when interconnected with the daytime peak load at 14:00, DG interconnection results in a decrease in power loss values by 0,8% or 64 kW, and interconnection with the nighttime peak load at 19:00 also leads to a decrease in power loss values by 0.61% or 55 kW. Distributed Generation interconnection on the Blahkiuh Feeder also leads to improvements in voltage values, where interconnection during daytime at 14:00 results in voltage improvement at 41 busbars units under undervoltage condition, and interconnection during night time at 19:00 leads to voltage improvement at only 34 busbars units undervoltage condition out of a total of 50 undervoltage busbars.
ANALISIS EKONOMI SISTEM PLTMH DAN POMPA AIR SUNGAI YEH HA DI KABUPATEN KARANGASEM Leba, G. I. M.; Sukerayasa, I. W.; Ariastina, W. G.; Giriantari, I. A. D.; Kumara, I. N. S.
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p28

Abstract

Yeh Ha River in Ababi Village, Karangasem Regency, is a bathing spot utilized by locals for various purposes, fed by the Yeh Ha spring. Among its uses is filling a water tank with a capacity of 58.74 m3 to distribute water to 10 households. Initially, a waterwheel powered a mechanical pump without electricity. However, due to damage, a less efficient hydraulic ram pump replaced the waterwheel. The research aims to design a Microhydro Power Plant (PLTMH) and a water pump system. With these systems, it's expected to enhance the efficiency of filling the water tank and ensure project sustainability through economic analysis. Measurements indicate that Yeh Ha spring has a flow rate of 0.201 m3/s with a head of 4.6 m. Based on this, a crossflow turbine equipped with a centrifugal pump and variable frequency drive is chosen to meet the water needs of 12,277 people or 2,455 families. The investment for the PLTMH and water pump system is Rp3,191,330,505 with a project's economic life of 30 years. Feasibility analysis shows that the design is viable, with a positive net present value of Rp1,534,531,357 and Rp930,180,420 at discount rates of 10% and 12%, respectively. However, the benefit-cost ratio (BCR) is less than 1, at 0.48 and 0.29. The internal rate of return (IRR) is 17.6% and 15.5%, with a break-even point of 2,699,253 m3 sold, requiring a payback period of 9 years at a 10% discount rate and 10 years and 4 months at a 12% discount rate.
ANALISIS EKONOMI RANCANGAN PLTS UNTUK KAWASAN WARISAN BUDAYA DUNIA JATILUWIH Sinaga, P. M.; Ariastina, W. G.; Sukerayasa, I W.; Giriantari, I. A. D.; Setiawan, I N.; Satya Kumara, I N.
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p24

Abstract

Bali is a province in Indonesia that is progressive in utilizing renewable energy, by making a policy to create Bali Clean Energy, which aims to develop renewable energy including solar energy. Even though several Solar Power Plant developments have been carried out in Bali, it still needs to be accelerated in its application to achieve the set targets. In this study, the Jatiluwih Heritage Area was chosen as the location for designing a Rooftop solar power plant. Jatiluwih is a Village that became a World Cultural Heritage designated by UNESCO in 2012. The methods used in this research are interviews, literature studies, and scientific studies based on related journals. This study uses two scenarios, namely the load usage scenario and the roof area scenario. There are 45 buildings that have tourism activities in the Jatiluwih DTW area, with a daily electricity requirement of 225.37 kWh/day. Based on the criteria for installing a Rooftop Solar Power Plant, there were five buildings that met the criteria, namely Dukuh Batur Villa, Teras Subak Homestay, Warung Dhea, Iga Lawar Restaurant, and Bhuana Agung Restaurant. Based on the investment feasibility study using the Net Present Value, Profitability Index, and Payback Period methods, it shows that the investment in designing a Rooftop Solar Power Plant with a scenario based on load requirements has 2 feasible buildings, namely the Iga Lawar Restaurant and Bhuana Agung Restaurant, and based on the roof area scenario it shows the design investment Solar Power Plant Jatiluwih World Cultural Heritage Area is not feasible to implement.
PERANCANGAN PLTMH SUNGAI YEH HA DI KARANGASEM DENGAN TURBIN CROSSFLOW Virgunia, D. A.; Sukerayasa, I W.; Ariastina, W. G.; Setiawan, I N.; Giriantari, I. A. D.; Satya Kumara, I N.
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p29

Abstract

Yeh Ha River in Ababi Village, Karangasem Regency, Bali, is a river that originates from the Yeh Ha springs and is used as a bathing place. This river has the potential for a new renewable energy source that can be utilized for the Micro Hydro Power Plant (MHPP). Discharge measurements were carried out for a week on one of the Yeh Ha spring source channels during the dry season. The results showed an average discharge of 0.201 m3/s. The discharge data used is the minimum potential energy that can be absorbed. Based on the measured discharge data and the used head of 4.6 m, the Tanaka Suiryoku Turbine Selection Chart shows that the crossflow turbine meets the turbine selection criteria. The results of the analysis and calculations show that the available power at the turbine is 8 kW with an efficiency of 80%. A 3-phase synchronous generator with a permanent magnet rotor was selected based on a comparison of the types, specifications, and characteristics of the generator to match the turbine capacity. The output power generated by the generator is 6 kW with a rotational speed of 1500 rpm and a generator efficiency of 90%.
Co-Authors A I Weking A. A. Ngurah Bagus Budi Nathawibawa A. A. T. B. Artawan A. Andriani A. Ibi Weking A.A Ngurah Amrita A.A. Gede Ari Pawitra Putra A.I. Weking AA. M Pemayun Abdul Latif Abdul Qodir Abid Surya Bimantara Agus Selamet Duniaji Awgustus Patandean Bawa Adiputra C. G. I. Partha, C. G. I. C. G. Indra Partha D. A. S. Santiari D.Y. Manurung Derren, M. Dewa ayu Nancy Cahyani Dharmawan, N. B. Dony Septa Primadita DPD Suparyawan G.K. Sandy Gede Endrawadi Gede Ogiana Gede Sukadarmika Govinda Riawan H.C Soetanto Haekal, Muhammad Hasan Dedy Sudono I Dewa Gede Wisnu Agung Bayuna I G.N. Evan Aditya Pramana I Gede Adnyana I Gede Budhi Arsana I GN Dion Adiputra I Gusti Ngurah Priambadi I K. S. T. Lilayoga I Kadek Hendy Wijaya I Kadek Krisna Yoga I Ketut Citra Adi Putra I M Suartika I M.T. Sismantara I N Satya Kumara I N. S. Kumara I N. Setiawan I Nyoman Budiastra I Nyoman Oksa Winanta I Nyoman Setiawan I Nyoman Suprapta Winaya I P. A. Edi Pramana I Putu Arsikaputra I Putu Eka April Yanto I W A Wijaya I W A WINARTA I W Rinas I W.Y.M. Wiguna I Wayan Arta Saputra I Wayan Arta Wijaya I Wayan Sukerayasa I. N. S. Kumara I. W. Sukerayasa, I. W. I.B.G. Manuaba I.G.W. Artana I.N.S. Kumara I.P.H. Wahyudi I.W. Yudi Martha Wiguna Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ida Bagus Bawa Adiputra Indra Baskara INS Kumara INS Kumara Intan Aprilia Medina IW Gunarta J. Pangaribuan Julius Mahendra Sihombing Juniastra Gina K A Kartika Sari Kadek Ary Budi Permana Kadek Hari Merta Kadek Sumariana Kenny Angel Manik Ketut Vidhia Kumara Komang Oka Saputra Kumara, I. N. S. l Gusti Ngurah Janardana Leba, G. I. M. Lie Jasa M.K. Huda Made Sudarma mahadi putra Michael Candra Santoso Muhammad Hari Wijaya Muhammad Malik Al Falah N. A. Kartono N. B. Dharmawan N. Nuswantara N. W. Sindi N.W. Budiantari Ngakan Putu Satriya Utama Ngakan Putu Satrya Utama Ni Made Ary Esta Dewi Wirastuti Ni Made Ary Esta Dewi Wirastuti NM Karmiathi Norberto Soares Nurwijayanti Nyoman Gede Yudiarta Ontoseno Penangsang Pande K. B. Sutawan Putu Martha Risnadinata R.S. Hartati Rukmi Sari Hartati Sari, N. P. A. R. Sembiring, Rinawati Setiawan, I N. Setiawan, I. N. Sinaga, P. M. Solly Aryza Suriana, I Wayan Surung Rafael Sihaloho Virgunia, D. A. Yohana Fransisca Sarumpaet