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Journal of Electrical, Electronics and Informatics
Published by Universitas Udayana
ISSN : 25498304     EISSN : 26220393     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering
Journal of Electrical, Electronics and Informatics is a peer-reviewed journal which devoted to the advancement and dissemination of scientific knowledge concerning electrical, electronics and informatics throughout the world for researchers and professionals. The journal is an official publication of the Institute for Research and Community Services Udayana University. The scope of these areas may encompass: (1) theory, methodology, practice, and applications; (2) analysis, design, development and evaluation; and (3) scientific and technical support to establishment of technical standards in the field of electrical, electronics and informatics.
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Articles 80 Documents
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Modelling Fuzzy Logic Type-2 for Liquid Waste Control of Aerator Machine I Made Mataram; I Ketut Wijaya
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

Liquid waste cannot be disposed of directly, so it must be processed so as not to cause pollution to the surrounding environment. Both BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand) treatment, oxygen is also required so that the quality of the liquid waste is safe for the environment. Liquid waste treatment mostly utilizes aerators to produce high pressure air in liquid waste containing oxygen (O2). The problem that occurs in most wastewater treatment is the determination of the working time of the aerator, resulting in excessive use of electrical energy, but the results of the waste are still within unsafe limits. In general, the operating time of the aerator is manually, this causes the use of electrical energy to be wasteful. This research was conducted, how to develop a control system design for aerator operating time on the quality of liquid waste. The development of the control system used is Sugeno interval fuzzy logic type-2 with 2 (two) input types of Gauss membership function. The advantage of interval fuzzy logic type-2 over type-1 fuzzy logic is the ability to provide more accurate output for higher input uncertainty. The input variables used are waste volume and COD reduction, while the output is the aerator's operating time. The results obtained in the system design can be applied properly and in accordance with the setting point with an average aerator operating time of 6.8 hours and can reduce the use of electrical energy by 38.2%.
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.
digiSCAN: A Supermarket Anti-Theft Scanner Benjamin Kommey; Elvis Tamakloe
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

Supermarket shopping is an essential part of the livelihood of most people around the world. Consumers can acquire items essential for their daily activities. However, in an ever-evolving world with an increasing population and increasing crime rates, supermarket theft is becoming a prevalent problem with supermarket owners spending large sums of money on hiring security often with little effect. Organized Retail Crime (ORC) costs the retail industry approximately $30 billion each year, with 71.3% of retailers reporting an increase in ORC year-over-year. With the current global economic conditions, high labor costs are longer feasible. Consumers also face the issue of paying for items they did not select. Advanced camera systems, for some, may be an escape however, this approach is not feasible for all aspects of shopping and in underdeveloped countries that have technical constraints. The advent of digitization has helped improve the livelihood of consumers in Ghana. Currently, many large-scale retailers are oblivious to some of these advancements. The oblivion of the management of such retail services results in the loss of products, customer dissatisfaction and the mismanagement of untracked products by employees. To reduce theft and the mismanagement of products by employees, a smart antitheft system should be deployed in supermarkets; at the till and before the exit of supermarkets to ensure all products leaving the store are paid for and accounted for. The system consists of a deactivation and theft detection system. The product is deactivated by the store attendant at the till when the customer pays for the product. However, if a customer crosses the initial warning zone without paying, a warning sound is triggered and after the customer crosses the final warning zone, the alarm is triggered indicating an attempted theft by the customer. A log of products is also kept ensuring employees are not stealing products. This paper presents a smart way of detecting theft during supermarket shopping using Radio Frequency Identification (RFID) readers and tags, microcontroller-based control system, a database server and an Integromat.
Coral Stone Installation On the Substation Grounding System In Limestone I Gusti Ngurah Janardana; I Wayan Arta Wijaya
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 step voltage and touch voltage exceed the maximum limit due to overcurrent to the ground flowing in the equipment grounding area which is dangerous for the equipment and people in the vicinity. The ground at the switchyard location is filled with coral above the ground level. The purpose of this study was to determine the thickness of coral in the grounding system of switchyard equipment in calcareous soil. The analytical method of this research is to calculate the results of the thickness of the coral to get the standard value of IEEE-80-2013. The result of this research is that the installation of 0.15 meters of coral when wet or dry produces the best step voltage and touch voltage values when compared to the thickness of 8 cm (0.08 meters) of coral stone to 14 cm (0.14 meters)
Labeling Indonesia COVID-19 Data Using K-Means Clustering with Optimization Duman Care Khrisne; I Made Arsa Suyadnya; AA Ngurah Cakra Khana
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

COVID-19 or Corona Virus Diseases is a virus that spreads throughout the world and causes a pandemic that affects social life, education and tourism, especially in Indonesia. The government has implemented various policies to reduce the rate of cases in Indonesia. In determining policies and regulations, the role of data is very important, especially in Indonesia, but the existence of data is still small and has not been labeled. In this study, the method used to label COVID-19 data in Indonesia is using K-Means Clustering. K-means is a data processing method that produces a group that is divided into 16,936 data. Determination of the number of groups in this study using the Elbow method and optimized by the Davies Bouldin Index method. The result of this study is the number of clusters used as labeling of COVID-19 data in Indonesia. The number of clusters was obtained using the Elbow method and optimized with the Davies Bouldin Index so as to produce a total of 4 clusters and the results of the labeling obtained the number of members in each cluster which amounted to 15315 in cluster 0, 1191 in cluster 1, 222 in cluster 2 and 208 in cluster 3.
Coral Rock Thickness Grounding System Switchyard Substation In Clay IGN Janardana; I Wayan Arta Wijaya
Journal of Electrical, Electronics and Informatics Vol 7 No 1 (2023): JEEI (July 2023)
Publisher : Institute for Research and Community Services Udayana University

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Abstract

The grounding of the equipment at the substation switchyard location is given a layer of coral about 10 cm above the ground surface to reduce the tension difference on the ground surface and increase the resistance of the human feet around it. The purpose of this study was to determine the thickness of the coral in the grounding system of switchyard equipment in clay. This research analysis method calculates the results of the coral thickness value to achieve the step voltage and touch voltage values ??according to the IEEE Std 80-2013 standard so that it can provide safety for the equipment and people around it. The results of this study are that the thickness of the coral 0.15 meters produces a touch voltage value = 150.3675 volts (dry conditions) and 148.63 volts (wet conditions) and the step voltage is the smallest and best with a value = 206.83 volts ( dry conditions) and 163.98 volts (wet conditions when compared to the thickness of the coral 0.08 meters to 0.14 meters, so it is concluded that the thickness of the coral is best to be installed at the substation on clay of 0.15 meters is good when the soil and coral are wet or dry, so that it has an impact on the function of the grounding system to function properly and safely for equipment and humans. Keywords— Coral, Earthing, Clay.
Dye Sensitized Solar Cell Output Power Based on FTO Disposition Immersion Time in Papaya Leave Chlorophyll Poppy Diana Sari; I Made Anom Sutrisna Wijaya; Ida Ayu Dwi Giriantari; Ni Made Wartini; Rukmi Sari Hartati
Journal of Electrical, Electronics and Informatics Vol 7 No 1 (2023): JEEI (July 2023)
Publisher : Institute for Research and Community Services Udayana University

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Abstract

Dye-Sensitized Solar Cell (DSSC) is a dye-based organic solar cell as a photon absorber developed by Prof. Gratzel (1991). Natural dyes are a solution to replace synthetic dyes which are commonly used for DSSC because they are affordable, available in large quantities, environmentally friendly and sustainable. The aims of this study was to analyze the effect of immersion time on the disposition of flourine-doped tin oxide – Titanium dioxide (FTO-TiO2) in the natural dye chlorophyll on the current, voltage and power produced. Using papaya leaves extract with a direct gap energy of 2.428 Ev, FTO-TiO2 deposition was immersed in chlorophyll with 5 levels of immersion time and 3 groupings. Current and voltage measurements were made at the output of the DSSC prototype. Using the Solar Power Generation System, the output voltage (Voc) is 341.167 mV, the current (Isc) is 64.755 ?A and the output power is 1.49 x 10-5 w/cm2 at 60 hours of immersion.
Analysis of Sales Forecasting on Galah Kopi Using the Fuzzy Time Series Method Christina Purnama Yanti; Kadek Listy Mas Setya Devi; Santi Ika Murpratiwi; Theresia Hendrawati
Journal of Electrical, Electronics and Informatics Vol 7 No 1 (2023): JEEI (July 2023)
Publisher : Institute for Research and Community Services Udayana University

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Abstract

Galah Kopi is one of the coffee shops in Tabanan. Addressed at Jl. Raya Babadan Senganan No. 13, Penebel District, Tabanan Regency. Galah Kopi's sales only use previous sales data as a benchmark without the aid of calculations using a more accurate scientific method. The coffee shop also experienced erratic sales problems. The solution that can be used is to do forecasting. This study uses the Fuzzy Time Series method for sales forecasting. The results of this study show that the model method has an accuracy value where the results of the coffee category with an MSE value of 901,917, MAE 27,715 and MAPE 6,115, the Chen model with an MSE value of 4939,505, MAE 57,952 and MAPE 12,574. Fuzzy time series model Singh in the non-coffee category with MSE values ??of 3249.019, MAE 50.177 and MAPE 6.96, with the Chen model with MSE values ??of 23536.2, MAE 125.904 and MAPE 19.00. Fuzzy time series model Singh for the Food category with MSE values ??of 1286.453, MAE 32.187 and MAPE 8.211, with the Chen model with MSE values ??of 14175.61, MAE 98.273 and MAPE 103.45. Fuzzy Time Series Singh model in snack category with MSE value of 1285.114, MAE 30.845 and MAPE 41.967, with the Chen model with MSE value of 14175.61, MAE 98.273 and MAPE 103.45. So that the model method that has the smallest accuracy is the fuzzy time series Singh
IoT-Based Machida Cultivation Method Implementation in Hydroponic System to Increase Melon Crop Productivity Guntur Petrus Boy Knight; Istas Pratomo Manalu; Sari Muthia Silalahi
Journal of Electrical, Electronics and Informatics Vol 7 No 1 (2023): JEEI (July 2023)
Publisher : Institute for Research and Community Services Udayana University

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Abstract

National consumption of fruits in Indonesia is expected to increase. The reasons for this are the awareness of Indonesian about the health effect of fruits consumption and the demographic bonus that will increase Indonesian economic output which in turn increase the consumption of fruits in the long run. Without the increase in fruits production, the price of fruits will increase as a consequence of supply and demand imbalance. In this research we tried to increase the productivity of Melon crops as a study case. Traditional cultivation of melon usually produces 1-2 melons per crop. The purpose of this research is to increase the productivity of Melon crops to at least 8 melons per crop using method such as IoT, Hydroponic system, and Greenhouse. Despite several drawbacks from the initial research design, the result of the research successfully increased the productivity of melon crop as stated in the research purpose.
The Detail Engineering Design (DED) Online Garbage Collection System Lino Verlin; NMAE Dewi Wirastuti
Journal of Electrical, Electronics and Informatics Vol 7 No 1 (2023): JEEI (July 2023)
Publisher : Institute for Research and Community Services Udayana University

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Abstract

Garbage is an invaluable or worthless object that is around the community environment. Almost all cities in Indonesia experience problems in waste management. This happens because the Final Disposal Site in a city does not have enough land to accommodate. The lack of landfills has resulted in people throwing garbage into ditches, rivers and the sea. Community participation is another important factor in waste management but also necessary to utilize modern technology. Therefore to overcome to overcome this waste problem by creating an Detail Engineering Design for online Garbage Collection System. This system developed to help the process of sending waste from households to TPS and sending garbage from TPS to TPA. The results of this study are detailed engineering systems for online garbage collection which are expected to help local governments in overcoming problems with garbage. With the example of the implementation of this system for Tabanan district. The estimated funds needed are Rp. 20,607,450,400. These funds are used to build a garbage collection site or landfill and develop the application and the time required for the overall construction is six months

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