Claim Missing Document
Check
Articles

REVIEW DAN ANALISIS PERKEMBANGAN PLTS PADA SARANA TRANSPORTASI LAUT Made Puji Dwicaksana; I Nyoman Satya Kumara; I Nyoman Setiawan; I Made Aditya Nugraha
Jurnal RESISTOR (Rekayasa Sistem Komputer) Vol. 4 No. 2 (2021): Jurnal RESISTOR Edisi Oktober 2021
Publisher : LPPM STMIK STIKOM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31598/jurnalresistor.v4i2.732

Abstract

This paper aims to review the current development of vessels with solar power to reference the research and development of solar power vessels in Indonesia. The research method is a systematic literature review on the development of solar-powered vessels and includes an online survey of vessels using solar PV. This study found 86 solar-powered vessels consisting of boats, utility boats, ferries, houseboats, research, vehicle carriers, dive boats, and yachts developed from 1988 to 2020. These solar-powered vessels were built for various functions such as competitions, cleaning the environment, passenger transportation, and water tourism.  Production of solar-powered vessels is increasing in terms of production volume, PV capacity, and battery capacity. In terms of PV configuration, the solar array is dominated by a fixed array structure. However, there have been innovations using sun-tracking, wind tracking airfoils, and expandable channels to increase PV capacity.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.179 KB) | DOI: 10.24843/SPEKTRUM.2022.v09.i01.p18

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (590.299 KB) | DOI: 10.24843/SPEKTRUM.2022.v09.i02.p3

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.969 KB) | DOI: 10.24843/SPEKTRUM.2022.v09.i02.p15

Abstract

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.
Three-phase four-wire shunt hybrid active power filter model with model predictive control in imbalance distribution networks Asep Andang; Rukmi Sari Hartati; I Bagus Gede Manuaba; I Nyoman Satya Kumara
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 6: December 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v12i6.pp5923-5937

Abstract

This paper presents a harmonic reduction and load imbalance model in a three-phase four-wire distribution network. This model uses a hybrid active power filter, a passive inductor and capacitor filter, and an active power filter in the form of a three-phase, four-leg connected grid inverter. The switching of the voltage source converter on this filter uses finite control set model predictive control (FCS-MPC). Control of this hybrid active power filter uses model predictive control (MPC) with a cost function, comparing the reference current and prediction current with mathematical modelling of the circuit. The reference current is taken from the load current by extracting dq, and the predicted current is obtained from the iteration of the voltage source converter (VSC) switching pattern. Each combination is compared with the reference current in the cost function to get the smallest error used as a power switching signal. Modelling was validated by using MATLAB Simulink. The simulation results prove a decrease in harmonics at a balanced load from 22.16% to 4.2% and at an unbalanced load, reducing the average harmonics to 4.74%. The simulation also decreases the load current imbalance in the distribution network. Reducing the current in the neutral wire from 62.01%-0.42% and 11.29-0.3 A.
RANCANG BANGUN CONTROLLER BLDC BERBASIS MIKROKONTROLER STM32 BLUE PILL PADA KENDARAAN LISTRIK URBAN AGNIJAYA WEIMANA Mas Nyoman Ngadeg A. C.; I Nyoman Satya Kumara; I Putu Elba Duta Nugraha
Jurnal SPEKTRUM Vol 9 No 3 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1103.84 KB) | DOI: 10.24843/SPEKTRUM.2022.v09.i03.p7

Abstract

The increase in the consumption of fuel oil causes the depletion of fossil fuel reserves. One alternative energy solution that can be utilized is electrical energy. One of the efforts to overcome the energy crisis can be realized in a creativity in the energy efficient car contest (KMHE). The Weimana Team of Udayana University participated in the urban concept category of electric motor drive under the name Agnijaya Vehicle. One important aspect in order to be able to compete and win the competition is the Motor Controller. In this paper, the results of the research are presented on a design of a Brushless DC Motor Controller based on the STM32 Blue Pill microcontroller and used to rotate the BLDC motor on the Agnijaya Weimana Urban Electric Vehicle. The specifications of the BLDC controller design are made to have a power dissipation inverter with a power of 1980 Watt connected to an 800 Watt sensored BLDC motor. The STM32 Blue Pill microcontroller-based Brushless DC Motor Controller has been successfully designed and manufactured and produces a sinusoidal output waveform containing switching noise when connected to a no-load BLDC motor. The performance to drive Agnijaya Wimana's Urban Electric Vehicle is capable of implementing a PWM duty cycle of up to 100% with an average current achievement of 24,775 Ampere, an average voltage drop of up to 48,485 VDC, an average power rating of up to 1200,5 Watt and a BLDC motor speed up to 419,5 RPM.
REVIEW RAGAM JENIS KAPAL PERIKANAN INDONESIA Bradley Axelius; I N. S. Kumara; W G. Ariastina
Jurnal SPEKTRUM Vol 9 No 3 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (308.522 KB) | DOI: 10.24843/SPEKTRUM.2022.v09.i03.p10

Abstract

Indonesia as a maritime country with 2.23 million people working in the marine sector, one of which is a fisherman. Fishermen are one part of the fishing unit that plays a very important role for the success of a fishing operation. This paper reviews the fleet of vessels used by fishermen in Indonesia. The research method is a literature study taken from books, papers, the internet, and other sources that can support. The results of the review show that in carrying out fishing activities, fishermen in Indonesia use traditional and modern boats or boats. Types of boats or ships are divided into several categories. Depending on the type of fishing gear such as purse seine, trawls, dredge net, lift net, gill net, pole and line, long line, tonda ship, jungkung, and based on the propulsion system and ship size divided into powered boat and non-powered boat. In the operation of the ship, electricity is supplied by generators or batteries or batteries. To drive the sailing ship, a motorized engine is used, which is divided into inboard and outboard engines based on the layout, and is categorized into marine diesel engines and marineized engines based on their design and designation. On the other hand, to optimize the production of potential fisheries resources owned by Indonesia, it is necessary to increase the number of ships. The fluctuating growth in the number of vessels from 2002 to 2016, with the largest number of vessels amounting to 815,544 units in 2014 has not been able to maximize production from this potential. The Indonesian shipbuilding industry has also not developed in line with the challenges it faces. Development is still lagging behind the capacity, potential, demands and demands of the market. As well as social organizations also have an important role to increase capture fisheries production by providing guidanceThe information presented is expected to help the interests of the community such as the central government, local governments, researchers, students, and anyone who is interested in supporting the field of fishing vessels in Indonesia, especially the application of solar power plants on fishing boats.
SURVEI BIAYA INVESTASI AWAL PLTS ATAP DI INDONESIA TAHUN 2022 I Putu Yudi Pramayasa; I Nyoman Satya Kumara; I Nyoman Setiawan
Jurnal SPEKTRUM Vol 9 No 3 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.392 KB) | DOI: 10.24843/SPEKTRUM.2022.v09.i03.p11

Abstract

The slow development of New and Renewable Energy such as solar energy in Indonesia are influenced by land acquisition and the high initial investment costs, but lately the cost of solar power plant development prices has been decreasing globally year by year. This research will review the development of PV mini-grid investment costs in Indonesia and this information can be used as a source of information for stakeholders to understand the development of PV mini-grid prices in 2022. The price of the solar power plant construction was obtained through a survey from the e-commerce website. From the survey, 55 data has been obtained related to the price of solar power plant rooftop construction in Indonesia with a capacity scale of 1 KWp to 10 KWp with price range from Rp. 14,000,000 to Rp. 207,000,000. The average initial investment cost for the construction of a PLTS Roof in Indonesia with a capacity of <2 KWp is Rp. 22,954,000, <3 KWp is Rp. 42.838.000, <4 KWp is Rp. 60,716,000, <5 KWp is Rp. 64,473,000, <6 KWp is Rp. 82,986,000, 6 KWp is Rp. 102,380,000, 7 KWp is Rp. 117,580,000, 8 KWp is Rp. 140,980,000, 9 KWp is Rp. 156.580.000, and 10 KWp is Rp. 151,820,000.
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.
STUDI PENGURANGAN EMISI KARBON SISTEM KETENAGALISTRIKAN PROVINSI BALI: ANALISIS RUPTL 2021-2030 Aditya Perdana Putra Purnomo; Ida Ayu Dwi Giriantari; I Nyoman Satya Kumara
Jurnal SPEKTRUM Vol 10 No 3 (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.i03.p1

Abstract

Indonesia's Nationally Determined Contribution (NDC) targets a 19 to 27% reduction in greenhouse gas (GHG) emissions from the energy sector compared to the business-as-usual scenario. Assuming this target applies uniformly to all provinces in Indonesia, including the power sector, a modeling analysis of Bali's power system is conducted to assess GHG emission reductions. Two scenarios are developed in the Low Emissions Analysis Platform (LEAP) to evaluate the future deployment of Bali's power system. The Business-As-Usual (BaU) scenario serves as the baseline for emission reduction in other scenarios and assumes the development of Bali's power system without emission reduction interventions. The RUPTL scenario assumes the continued development of Bali's power system in line with the electricity development plan document. Results show that the RUPTL scenario achieves a 20.89% reduction in emissions, which fulfills the regional assumption of a 19% NDC target. However, it falls short of achieving the 2030 target of 27% emission reduction.
Co-Authors A. A. Ngurah Bagus Budi Nathawibawa A. Ibi Weking A. Jagad Miftahul Rizqy A.A. Gede Ari Pawitra Putra Abid Surya Bimantara Abinanda , IKPT Adhi Permana Aditya Perdana Putra Purnomo Adyana Putra, I Kadek Agus Mahardiananta, I Made Agus Satrya Wibawa Agus Selamet Duniaji Aldy Allan Ghozali Amien Harist Hardiansyah Ariastina, WG Aries Arimbawa Asep Andang Bayu Widiarsa Kadek Bradley Axelius C. G. Indra Partha Caesar, B Cecep Yudhie Rachmat D. Sitompul D.C. Khrisne D.Y. Manurung Darmawan, I Gede Hadi Derren, M. Dewa Nyoman Tri Budiantara Dewa Putu Ari Laksana Dharmawan, I Made Diky Dwi Girantari, Ida Ayu Dwi Giriantari , Ida Ayu Eka Yulia Indri Christanti Fajar Tri Prabowo Giusna Dipankara Kusnandar Govinda Riawan H. Kristiawan Harahap, RS Hardiansyah, Amien Harist Hasan Dedy Sudono Hendri Noviyanto Pratama I Dewa Gde Yaya Putra Pratama I Gde Ari Biantara I Gede Civavisna Brahma I Gede Dyana Arjana I Gede Hadi Darmawan I Gst Agung Putu Raka Agung I Gusti Agung Putu Raka Agung, I Gusti Agung Putu I Gusti Agung Putu, Raka Agung I Gusti Made Ngurah Desnanjaya I K Agus Setiawan I Kadek Hendy Wijaya I ketut Gede Darma Putra I Ketut Wiryajati I Made Aditya Nugraha I Made Arsa Suyadnya I Made Dwi Jendra Sulastra I Made Ginarsa I Nyoman Budiastra I Nyoman Budiastra I Nyoman Setiawan I Nyoman Setiawan I Nyoman Yudiyana I Pt Agus Surya Adi P I Putu Elba Duta Nugraha I Putu Gde Weda Setyawan I Putu Gede Budisanjaya I Putu Gede Iwan Dwipayana I Putu Indra Saputra I Putu Yudi Pramayasa I W.Y.M. Wiguna I Wayan Indrayana, I Wayan I Wayan Sukerayasa I Wayan Sukerayasa i wayan swi putra I Wayan Swi Putra I. M. R. A Anantajaya I. P. Dharmawan I.G.A.B. Adiputra I.G.A.D. Sasmita I.G.W. Artana I.N. Setiawan I.P.A. Wiranata I.W.B. Darmawan I.W.G.A Anggara Ida Ayu Dwi Giriantari Ida Ayu Putu Febri Imawati Ida Bagus A. Swamardika Ida Bagus Gede Manuaba Ida Bagus Gede Widnyana Putra Ida Bagus Ketut Sugirianta Ida Bagus Leo Mahadya Suta Ida Bagus Putra Setanu M Irwan Octopianus Silaban IW Gunarta J. Pangaribuan Jaya Kusuma, I Kadek Bagus Julius Mahendra Sihombing Junantara, I Ketut Adi Kadek Hari Merta Kadek Sumariana Ketut Vidhia Kumara Komang Bagus Dwi Widiatama Putra Komang Oka Saputra Kresna Aditya, I Putu Gede Lely Meilina Lie Jasa Lintang Pramudya Luh Ayu Sutawati M.R. Wicaksana M.T. S.T. I Wayan Sutaya . Made Dwi Mulyawan Made Pradnyana Ambara, Made Pradnyana Made Puji Dwicaksana Made Sudarma Mas Nyoman Ngadeg A. C. Moch. Farhan Arieffadillah Muhamat, Oscar Muhammad Malik Al Falah Mustika Wiyasa, I Kd N. A. Kartono N. M. A. Wijaya N. Surya Gunawan Natapathy, Ranga Bayu Ni Luh Gede Pivin Suwirmayanti, S.Kom, MT, Ni Luh Gede Pivin Ni Made Ary Esta Dewi Wirastuti Ni Made Neli Lestari Ni Putu Amanda Saraswati Ni Wayan Ernawati Ni Wayan Sri Ariyani NM Karmiathi NMAE Dewi Wirastuti Oswald Mangatur, Christian Oya Iman Sanjaya P.G.G. Priajana Paisal, Muhammad Pande K. B. Sutawan Partogi Manalu, Eli Musa Reja Pramudya, Lintang Pranipata, IND Purna Suartawan, Gede Purnawati, Ita Ayu Purwania Ida Bagus Gede Putra Padang, Christian Felix Putu Martha Risnadinata R. Sapto Hendri Boedi Soesatyo Radha Kurniawan Raka Agung, I G A Putu Rosalia Hadi Rukmi Sari Hartati Rukmi Sari Hartati Sandrawati, Syafiatun Servinus Servinus Servinus, Servinus Setiawan, I N. Setiawan, IN Simon Junior Sinaga, P. M. Siregar, Jhon Septin Maourisdo Sudarma Made Sukerayasa, IW Surung Rafael Sihaloho Syamaidzar, Ahmad Luqyanto Tjok Gede Indra Partha Virgunia, D. A. W G. Ariastina W Widiadha Wayan Gede Ariastina Wayan Gede Ariastina Widagdo, Aris Widiandika Putra, I Wayan Dicky Widyadi Setiawan Windradharama W., A.A. G. Guna Wira Dharma, Gede Agus Wulandari, NKN Yoga Divayana Yogiswara Dharma Putra Yohana Fransisca Sarumpaet Yoppy Hartantio