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Jurnal SPEKTRUM
Published by Universitas Udayana
ISSN : 23023163     EISSN : 26849186     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering
Jurnal SPEKTRUM is peer review journal, published four times a year by the Department of Electrical Engineering, Faculty of Engineering, Universitas Udayana. This journal discusses the scientific works containing results of research in the field of electrical, include: power systems, telecommunications, computers, informatics, controls, and electronics. Authors are expected to include original scientific papers in accordance with the scope of the discussion of this journal including all aspects of the theory and practice are used.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 677 Documents
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ANALISA EKONOMI RANCANGAN PLTS OFF-GRID PADA ADIDAYA WORKSHOP I.P. Dika Putra Ariantika; I.N. Setiawan; I.W. Sukerayasa
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.p9

Abstract

The PLTS Off-Grid design at the Adidaya Workshop as an additional power supplier is based on the load needs used for the equipment and operational on the workshop. PLTS Off-Grid features are economically likely to take a long time to make a profit. This study deals with the economic analysis of the PLTS Off-Grid system design using the Net Present Value (NPV) analysis method and aims to find out the comparison projections between output and output of the Off-Grid PLTS project at the Adidaya Workshop during the estimated life of PLTS will operate over 20 years. After the calculation, it was obtained that 1th Scenario using a variation of the solar panel capacity of 300 Wp with a battery of 540 Ah produced the largest RAB demand value worth Rp. by 286.038.441 While the smallest RAB requirement value is generated from 4th Scenario using a variation in solar panel capacity of 300 Wp with a 540 Ah battery worth Rp 252.093.730. The largest and the smallest NPV values are also generated by 1th and 4th Scenario with the NPV value of -Rp 316.734.509 and –Rp 251.285.665.
PENINGKATAN KEANDALAN PENYULANG TUKAD MUSI DENGAN PENAMBAHAN PENYULANG BATANGHARI DENGAN POLA LOOP Ian Rahmadi Kurniawan; I Gede Dyana Arjana; I Wayan Sukerayasa
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.p14

Abstract

Reliability of the distribution system is one of the critical challenges and important indicators in the electricity power system. The indicators determining reliability are SAIFI (System Average Interruption Frequency Index) and SAIDI (System Average Interruption Duration Index). The method used to improve the reliability of the distribution system in this research is by converting two radial feeders, namely Tukad Musi feeder and Batanghari feeder, into a loop configuration.The calculation results show that before the improvement, the SAIDI value for the Tukad Musi feeder is 26.59 hours/customer/year, and the SAIFI is 1.92 interruptions/customer/year. The initial values of SAIDI for the Batanghari feeder are 18.14 hours/customer/year, and SAIFI is 1.69 interruptions/customer/year. By implementing a loop configuration through the addition of extra channels at both ends of the feeders, the SAIDI is reduced to 24.79 hours/customer/year, and SAIFI becomes 1.89 interruptions/customer/year. Further improvements are achieved by maneuvering a portion of the load, resulting in SAIDI of 21.51 hours/customer/year and SAIFI of 1.83 interruptions/customer/year.This study contributes to enhancing the reliability of the distribution system by converting radial feeders into loop configuration. The findings can serve as guidelines for planning and developing a more reliable and efficient distribution system.
PERANCANGAN PLTS TERAPUNG UNTUK MENDUKUNG WISATA HIJAU DI BENDUNGAN TAMBLANG, DESA SAWAN, KABUPATEN BULELENG K. Cakrawenda Yoga Laksana; I.A. Dwi Giriantar; I W. Sukerayasa
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.p5

Abstract

The Province of Bali have many dams, one of it is the Tamblang Dam, which is located in Sawan Village, Sawan District, Buleleng Regency. The Government of Buleleng Regency is planning to make Tamblang Dam as a new Tourist Destination Area (Daerah Tujuan Wisata or (DTW) in order to improve the existing tourism conditions in North Bali. It is planned to utilizing Renewable Energy (Energi Baru Terbarukan or EBT) sources to support the needs of DTW and to support government programs to reaching the Bali's clean energy target on 2050. The Renewable Energy Power Plant that will be designed is a Floating Solar Photovoltaic (PV) Power Plant, as it the potential source of energy considering that Indonesia is located on the equator. The Solar PV Power Plant is designed using the tool from website by utilizing 5% of the surface area of the dam water which is 4,561.97 m2, based on Kementrian PUPR no 6 Tahun 2020 regulation. So that a Floating Solar PV Power Plant capacity of 0.6 MW is obtained by using 1,533 solar modules and produce energy reaching of 926,539 kWh in a year. The designed Floating PV need an initial investment cost of IDR 13,551,481,157, with the result of economic analysis, obtained value of each parameter including the NPV value is IDR 7,470,053,884, BCR is 2.66, and PP is less than 25 years.
PENINGKATAN KEANDALAN PENYULANG TUKAD MUSI DAN PENYULANG BATANGHARI PT.PLN (PERSERO) UP3 BALI SELATAN ULP SANUR DENGAN POLA RADIAL Nyoman Ananda Tri Utami; I Gede Dyana Arjana; I Wayan Sukerayasa
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.p10

Abstract

The reliability of the distribution system will affect the quality of the electrical energy received by customers. The system will be said to be reliable if the disturbances and power outages that occur for a certain period of time are below the index set by an institution. The measure of the reliability of a system can be measured through the value of SAIDI (System Average Interruption Duration Index) or how long the system is interrupted and SAIFI (System Average Interruption Frequency Index) or how often a system is interrupted within 1 year and it was found that SAIFI's Tukad Musi Feeders were 1.9255 interruptions/subscribers per year, SAIDI were 26.5966 hours/customers per year and SAIFI's Batanghari Feeders were 1.6992 interruptions/subscribers per year, and SAIDI were 18.1486 hours/ subscribers per year by adding a component in the form of LBS to the two feeders will increase the reliability of the Tukad Musi feeder SAIFI of 1.8855 interruptions/customer per year, SAIDI of 26.0606 hours/customer per year and of Batanghari SAIFI feeder of 1.6814 interruptions/subscriber per year, SAIDI of 15.7925 hours / customer per year.
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.
RANCANG BANGUN SISTEM MONITORING KANDANG KELINCI BERBASIS INTERNET OF THINGS Alif Rizqian Aki; Lie Jasa; Pratolo Rahardjo
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.p15

Abstract

These days technology has developed rapidly, almost covering all aspects in humas life for example is automation system. The automation system works without human intervension and complete all works independently. Existing technology can already be connected to each other via the internet network so that it can transmit or receive data automatically. The Internet of Things (IoT) can support automated systems by providing real-time information so that users can monitor the performance of these automated systems. This research was to develop rabbit cage by utilizing microcontroller as monitoring system. The system utilizing Internet of Things (IoT) as monitoring medium between users and devices to help users monitor their rabbit cage remotely. The design installed several sensors such as ultrasonic, temperature, load cell sensors, DS18B20 and water level sensors. This research used Arduino Mega 2560 as main microcontroller and NodeMCU ESP8266 as communication device between the tools and database. The tools use android application on user smartphone that fuctions real time monitoring for the cage. Based on the results of this research by using Arduino Mega as microcontroller board to controlling and monitoring rabbit’s cage has succesfully in monitoring the cage via internet through the NodeMCU ESP8266 intermediary according to the design.
PERFORMANSI WAVELENGTH DIVISION MULTIPLEXING PADA JARINGAN OPTIK Dewa Gede Agung Mahesa Yoga; Sheena Graceline; Rizky Imanuel S; Pande Ketut Sudiarta; I Gusti Agung Komang Diafari Djuni Harta
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.p6

Abstract

The process of sending information is currently needed to be fast and efficient. One of the solutions to meet the needs of fast information is to use transmission via a Wavelength Division Multiplexing (WDM) network. The purpose of this study is to determine and analyze the performance of WDM networks and the impact that occurs when EDFA is added and its use in PON networks. This research will utilize optisystem 7.0 software in carrying out design simulations and finding out the results of receiver power, q-factor, and BER which will then be used as a comparison in this study. The results of the analysis provide evidence that the use of WDM in the delivery process is more efficient because it can transmit several wavelengths at a time, but will have a negative effect on distance, but this can be overcome by using EDFA in WDM networks. The use of WDM-PON will expand the scope of the process of sending information. The results of this study can prove the performance in the use of WDM. In the future, it is necessary to carry out further research by adding other comparison parameters so that the results obtained will be more certain. As well as the use of the latest version of the optisystem application will help and facilitate the process of collecting information and data.
RANCANG BANGUN APLIKASI MOBILE WEB UNTUK MARKETPLACE KLINIK HEWAN Adisti Anjani Putri; Rahel Kristina Prajnyawati; I Made Arsa Suyadnya; I Wayan Shandyasa
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.p11

Abstract

Pet owners rely on veterinary clinics to meet the healthcare needs of their pets, and yet, many veterinary clinics still manage data using conventional methods without fully utilizing digital information systems. This leads to issues such as repetitive registration, difficulties in obtaining copies of medical records, and challenges in finding nearby veterinary clinics. This research aims to address these problems by designing and developing a mobile web application for a veterinary clinic marketplace. The application consists of two main components. The front-end utilizes the React.js library based on Progressive Web Apps (PWA), while the back-end utilizes the Express.js framework. To ensure the overall functionality of the application, black box testing is conducted by the developer. Through this approach, the application is expected to assist pet owners in searching for and accessing information about veterinary clinics, viewing the services provided, and managing pet medical records digitally and easily. This research contributes to optimizing data management in veterinary clinics and enhancing the experience of pet owners.
DESAIN PLTS OFF-GRID BERDASARKAN ANALISIS OTONOMI BATERAI LEAD ACID OPZV DI ADIDAYA WORKSHOP, JAKARTA BARAT Jonathan Oliver Ken; I Nyoman Setiawan; I Wayan Sukerayasa
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.p2

Abstract

The design of Off-Grid PV at Adidaya Workshop as an additional electrical energy supplier is based on the load requirements used for equipment and operations at the workshop. In addition to requests from the company itself, the design of Off-Grid PV is carried out to supply electrical energy to essential loads and other educational purposes. The Off-Grid PV design was carried out with the first step of field observations at Adidaya Workshop, measuring the roof area, daily electricity load profile with a Power Quality Analyzer measuring instrument, and calculating the capacity requirements of the Off-Grid PV system according to the Adidaya Workshop load. The Off-Grid PV design was carried out with 4 scenarios based on variations in solar panels and batteries. Researchers calculated the capacity of the PV system and used PVSyst software as a design simulation so that a report was obtained based on field data. In the simulation results with PVSyst, the best performance ratio is obtained which is worth 68.3% obtained from scenario 3 with a variation of 600 Wp solar panels and 540 Ah batteries and the largest yield energy output is obtained from scenario 4.
PERANCANGAN PEMBANGKIT LISTRIK TENAGA SURYA ATAP DI HOTEL MEGA DANA Christ Ave Duga Purba; Ongky Wahyu Wicaksono; I Wayan Arta Wijaya; I Nyoman Budiastra
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.p7

Abstract

The utilization of renewable energy is one of the solutions to overcome the increasing electricity demand. One of these solutions is to install Solar Power systems on the roofs of offices, industries, or households. This study targets to meet electricity demand by utilizing the roof of the Mega Dana Hotel as a place for the installation of solar panels, the solar panel will later produce electrical energy to meet the electricity needs of the hotel bars. The simulation results of the production of electric energy at Hotel Mega Dana's solar panel system using an application called Helioscope. This study analyzes the economics of designing a rooftop solar power system at Hotel Mega Dana. The feasibility of this research investment is assessed from the value of NPV, PI, and DPP. According to the data obtained, the Hotel Mega Dana building has a roof area of 655.92 m 2. The study used 39 solar panel modules, 1 20kW inverter, and 5 48V 100 Ah TLO batteries, the system can produce 17,6 kWp of power, with a total annual energy production of 21.83 MWh to supply electricity for the bar at Hotel Mega Dana. This research was planned with an initial capital of IDR 254,578,500, a PI value of 1.09, and a DPP value of 21.9 years. The results of this research analysis can be considered feasible because the design has a positive NPV value and is expected to return investment at 21.9 years out of 25-years project life.

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