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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro 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) Majalah Ilmiah Teknologi Elektro

Wayan Gede Ariastina

Study Program Of Electrical Engineering, Faculty Of Engineering,Udayana University

Author-ID : 554089

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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ANALISIS OPERASI POMPA CHILLER MENGGUNAKAN FIXED SPEED DRIVE DAN VARIABLE SPEED DRIVE (STUDI KASUS : FOUR SEASON HOTEL JIMBARAN) Hasan Dedy Sudono; I N. Satya Kumara; WG. Ariastina
Jurnal SPEKTRUM Vol 9 No 1 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Four Season Jimbaran Hotel is one of the hotels in Bali using a cooling system which isusually called the water chiller. The electrical energy consumption in Four Season Hotel is oneof the factors that increase the use of electrical energy in which the star delta system is stillused to switch on the pump. Along with the electricity rate which keeps increasing every year,the electrical energy consumption in Four Season Hotel can increase the operational cost. It isconcluded that one of the largest electrical energy consumptions is water chiller pump. Chillerpump is a pump used for pushing water flow towards chiller condenser and Air Handling Unit(AHU) when the water chiller system is still active. Starters of the chiller pump used in FourSeason Jimbaran Hotel are inverter and star delta. The method used in conducting research was calculation of the electrical energy requirement and cost in two pumps set by star delta atan initial frequency of 50Hz in water chiller pump 160 TR, compared with inverter system withthe decrease of frequency by 5Hz (45Hz) in water chiller pump 230 TR. Monitoring wasperformed by analyzing the consumption of electrical energy (kWh), temperature (°C), andhumidity (%) in every pump set by every system. In these two pumps, energy consumption(kWh) and cost were compared in daily, weekly, and monthly needs. From the result ofresearch, in inverter system, the frequency reduction by 5Hz in water chiller pump 230 TR cansave electrical energy of 117,120 kWh and the cost of IDR 130,471,680 in the next five years.The comparison analysis of operation of the chiller pump supplied with star delta (fixed speeddrive) with an inverter (variable speed drive) has a difference energy consumption of 117,120kWh in both systems and the difference cost is Rp. 130,471,680.00 in next 5 years.

Analisis Performansi dan Ekonomi PLTS Atap 10 kWp pada Bangunan Rumah Tangga di Desa Batuan Gianyar Govinda Riawan; I Nyoman Satya Kumara; W. G. Ariastina
Jurnal Teknologi Elektro Vol 21 No 1 (2022): (Januari - Juni) Majalah Ilmiah Teknologi Elektro
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2022.v21i01.P09

The Efforts to accelerate the development of renewable energy power plants continue to be driven by the central government as stipulated in the National Energy General Plan. One of the plants developed is the Solar Power Plant. Currently about Solar Power Plant in Indonesia is built to reach 152.44 MW from the target set at 6.5 GW. The central government through the Minister of Energy of Resources and Minerals issued policy No. 49 of 2018 on the use of rooftop power plants. Gianyar is one of the areas that have good solar irradiation with an average of 4.99 kWh/m2/day, where it is very potential to build a rooftop PV. This research aims to find out the study of electrical energy and ecomonic generated from Solar Power Plant 10 kWp in Batuan village. Furthermore, surveyed the field to collect data to simulate the performance, comparison, and investment feasibility of the construction of the Solar Power Plant. Data collection of real production and real consumption is carried out for 12 months. Simulations use PVsyst programs and investment feasibility using several methods, such as Net Present Value.(NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (BCR), Profitability Index (PI), and Payback Period (PP). The total potential Solar Power Plant in of Batuan Village household is 9.3 kWp from the entire roof of the installation of 78.11 m2. The construction of Solar Power Plant in households in Batuan Village with a capacity of 10 kWp has a potential of 6336.3 kWh in a year with a performance of 30.9%, while in real production this Solar Power Plant is able to produce a total of 8,502 kWh in a year. In economic analysis, the feasibility level of plts development investment was declared unfit, with an NPV value of Rp. - 321,004,050 at a discount rate of 10%, the value of IRR - 90.4%, BCR worth 0.78, PI at 0.32, and PP which reached 78 years.

A Review on Model of Integrating Renewable Distributed Generation into Bali’s Power Distribution Systems: Issues, Challenges, and Possible Solutions Ngakan Putu Satriya Utama; Rukmi Sari Hartati; Wayan G. Ariastina; Ida Bagus A. Swamardika; Ontoseno Penangsang
Indonesian Journal of Electrical Engineering and Computer Science Vol 4, No 2: November 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v4.i2.pp245-255

Spurred by a global energy crisis, the use of renewable distributed generation (DG) with solar photovoltaic (PV) energy, micro-hydro power, and biomass power are gaining momentum and play major role in Bali’s distribution system as an alternative distribution system planning option. If distributed generation planning is optimal by selected optimization of multi-objective function under certain operating constraints and then their site and size are also selected optimally, the penetration of DGs is potentially beneficial. This paper would review techno-economic model objective, voltage profile improvement and power losses constraints as well as optimization based model using particle swarm optimization (PSO) algorithm application in Bali’s distributed generation planning.

RANCANG BANGUN SISTEM PEMANTAU SUHU BEARING MOTOR UNTUK POMPA SIRKULASI AIR BERBASIS IOT I.G.W. Artana; W.G. Ariastina; I.N.S. Kumara
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The importance of monitoring the temperature of the motor bearing on the water circulation pump on a regular basis to prevent pump operation failures due to bearing. The operator monitors the temperature bearing manually using a Flir measuring instrument with potential hazards in the work area namely slipping, falling and electrocution. On this basis, IoT based bearing monitoring system for circulation water pump in real time is very necessary.The design of this prototype uses hardware such as ESP32 microcontroller and MLX90614-BCC sensor, while the software used are blynk and google spreadsheet. The MLX90614-BCC sensor calibration uses a linear regression method to adjust the sensor value to the Flir TG167 so as to minimize deviations in temperature readings.The results of this prototype are able to read temperature bearing well which are integrated with the blynk on smartphones by displaying temperature values in the form of numbers and graphs and also equipped with a notification. The prototype that was built had an average measurement deviation of 0.32% on the DE sensor and 0.3% on the NDE sensor. Storage of temperature data on google spreadsheet with the amount of data that can be stored as much as 1,666,666 data. The conclusion of the research is that it has succeeded in designing and manufacturing a prototype IoT based bearing monitoring system for circulation water pump. Testing the performance of the prototype can work well. The results of the prototype test on bearing for the water circulation pump showed that DE and NDE bearing temperatures were still below 55 °C and there was no notification on the smartphone which indicates the motor bearing is still in normal condition.

PEMANFAATAN PLTS 10 kWp TERPASANG UNTUK CATU DAYA POMPA AIR DI DESA BAN KARANGASEM Awgustus Patandean; I A Dwi Giriantari; Wayan Gede Ariastina
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

There are 19 banjars considered as custom And 16 official banjars at Ban Village located in the Regency of Karangasem Bali. The people in Ban, especially who live at the village of Tempek Asti and the village of Manik Aji, have troubles to get the ccess of fresh water. As the result, they must take a longdistance walk and the condition is teribly dangerous. The village of Manik Aji has off-grid system powered by PLTS 10 kWp which was built in 2017 by the minister of source and energy of Indonesian Republic. It had done by Manpower Department and ESDM of Bali Province. In 2021, PLN (Indonesian Electric state) had designed to supply the electricity at Manik Aji village. Therefore,the installed PLTS was functioned as the source of electric support to fulfill the society's needs of tempek Asti Manik aji village. The water pump type is AC submersible Kepeida 4SMP3 26-2,2 kWp and 2.093,14 Wh of energy. The total head is 60,005 meter which the power needed 2,2 kWp and 2.093,14 Wh of energy so the water pump can operate for 3,5 hours with the water debit is 3 m3/h producing 10.000 litter of water and has fulfilled the water needs of society at tempek Asti Manik Aji village about 1.200 litter daily.

ANALISIS HOSTING CAPACITY PADA JARINGAN TEGANGAN MENENGAH UNTUK SUPLAI DAYA LISTRIK DAERAH PEDESAAN N.W. Budiantari; W.G. Ariastina; I.W.Sukerayasa I.W.Sukerayasa
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

As technology advances, the use of electrical energy increases for this reason, energy conversion is needed, one of which is the installation of photovoltaic. Analysis hosting capacity on the distribution network serves to determine the flow of power when photovoltaic is installed and can analyze voltage, conductor loading, power loss, and good transformer loading when connected to the network.The analysis of hosting capacity on rooftop PV mini-grid spread over the distribution network is very useful for future planning if there is a massive energy transition that is implemented on rooftop PV mini-grid. The hosting capacity analysis on the distribution network was carried out in 2 scenarios, which were Scenario A for the Bangli feeder without being connected to the PLTS 1 MWp and Scenario B for the parameter B for the Bangli feeder being connected with the PLTS 1 MWp. The analyzed parameters included voltage, conductor loading, transformer loading and power losses in network. The results of the analysis showed that the distribution network hosting capacity is 40%, for both Scenario A and Scenario B.

ANALISIS PLTS ATAP 25 KWP ON GRID KANTOR DPRD PROVINSI BALI I Kadek Hendy Wijaya; I Nyoman Satya Kumara; Wayan Gede Ariastina
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Development to new renewable energy still lower than Indonesia's target of 23% in 2025. For this reason, alternative solutions are needed, namely the use of renewable energy, one of which is from the solar energy sector, namely solar PV. Solar energy has the highest potential compared to other renewable energy sectors of 207.9 GW. Based on that, in 2020 the Province of Bali received a Rooftop Solar PV grant through the Ministry of Energy and Mineral Resources, one of which is located at the Bali Provincial DPRD Government Office with an installed power of 25 kWp using the On Grid system. Based on this, it is necessary to conduct a detailed study of the potential, operational systems, savings and the proper management model of Rooftop Solar PV at the Bali Provincial DPRD Office. The potential of Solar PV electricity production on the roof of the Bali Provincial DPRD Office was analyzed by simulating the orientation and tilt angle of the Solar PV to get the optimum Solar PV electrical energy production results using HelioScope software. The results showed that the results of electrical energy production in the simulations of the two scenarios tended to be higher with the total difference in scenario 1 and scenario 2 being 21.75% and 19.66%, respectively. For savings that can be obtained for 6 months of Rp. 36,055,301 with a percentage of 22.60%. The PLTS management model in the future is located in the general section, precisely in the Sub Coordinator of the Equipment, Assets and Household Substance Unit.

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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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

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

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.

Co-Authors A I Weking A. A. Ngurah Bagus Budi Nathawibawa A. A. T. B. Artawan A. Ibi Weking A.A Ngurah Amrita A.A. Gede Ari Pawitra Putra A.I. Weking AA. M Pemayun Abdul Latif Abid Surya Bimantara Agus Selamet Duniaji Awgustus Patandean Bawa Adiputra C. G. I. Partha, C. G. I. C. G. Indra Partha D.Y. Manurung Derren, M. Dewa ayu Nancy Cahyani Dharmawan, N. B. Dony Septa Primadita DPD Suparyawan Gede Endrawadi Gede Ogiana Gede Sukadarmika Govinda Riawan 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 Kadek Hendy Wijaya I Kadek Krisna Yoga I Ketut Citra Adi Putra I M Suartika I M.T. Sismantara I N Satya Kumara 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. 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. 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

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