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Buletin Ilmiah Sarjana Teknik Elektro
Published by Universitas Ahmad Dahlan
ISSN : 26857936     EISSN : 26859572     DOI : 10.12928
Core Subject : Engineering,
Electrical & Electronics Engineering
Buletin Ilmiah Sarjana Teknik Elektro (BISTE) adalah jurnal terbuka dan merupakan jurnal nasional yang dikelola oleh Program Studi Teknik Elektro, Fakultas Teknologi Industri, Universitas Ahmad Dahlan. BISTE merupakan Jurnal yang diperuntukkan untuk mahasiswa sarjana Teknik Elektro. Ruang lingkup yang diterima adalah bidang teknik elektro dengan konsentrasi Otomasi Industri meliputi Internet of Things (IoT), PLC, Scada, DCS, Sistem Kendali, Robotika, Kecerdasan Buatan, Pengolahan Sinyal, Pengolahan Citra, Mikrokontroller, Sistem Embedded, Sistem Tenaga Listrik, dan Power Elektronik. Jurnal ini bertujuan untuk menerbitkan penelitian mahasiswa dan berkontribusi dalam pengembangan ilmu pengetahuan dan teknologi.
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Articles 16 Documents
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Search results for , issue "Vol. 5 No. 1 (2023): March" : 16 Documents clear
Design an Automatic Water Tank Filling Tool Using NodeMCU Based on the Internet of Things Taufan Maulana Hazbi; Alfian Ma'arif
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.5761

Abstract

Drought is still common in Indonesia, especially in the prolonged dry season while the world's clean water reserves are only around 3%. Groundwater is a renewable natural resource, but overexploitation can cause problems such as sink holes, land subsidence, and seawater intrusion, therefore, the design of filling water tanks and automatic height meters is made as an effort to save water.  these automatic water tank measurements use the Internet of Things method accessed through Blynk. An internet of things-based tool measurement system with a water level principle uses an ultrasonic HC-SR04 sensor to measure Blynk's integrated water level, using the Nodemcu ESP8266 microcontroller as the main control. The overall result of the design of the tool, the water topping up process is shown in units of percent, the ultrasonic sensor HC-SR04 displays the actual distance and water level to Blynk in cm.
IoT-Based Chili Plant Watering Automation Using NodeMCU ESP8266 and Blynk when the Pump is Running Nuril Mustofa; Sunardi Sunardi
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.6164

Abstract

Automatic plant watering system can help users in caring for plants. Along with the development of technology, it is possible to monitor and control using the Internet of Things (IoT) from anywhere and anytime as long as the device is connected to the internet. The system designed in this study performs watering on chili plant automatically and in real time monitored through the Blynk application on a smartphone. Automation is carried out based on the moisture value parameter obtained from the capacitive soil moisture sensor as input and the NodeMCU ESP8266 as the controller. The output of the system is water sprinkling that comes out through a 12V DC water pump as an actuator and the Blynk application as a monitor and controller via IoT. Automation and monitoring through smartphones using the Blynk application in this study have been successfully carried out. Watering can be done regularly according to predetermined time intervals automatically and the amount of water given to plants according to their needs. At a humidity that is less than 60% and the schedule is appropriate, the pump will run for 4 seconds with a water discharge of 116.32 ml which has been adjusted to the volume of soil and water needs of chili plant.
Temperature and Lighting Control of Deep Water Culture Hydroponic System in Automatic Miniroom Space Kurniawan Dwi Yulianto; Riky Dwi Puriyanto
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.6767

Abstract

This research will develop a temperature control system and lighting using LEDs on automatic indoor hydroponic plants. The process of monitoring air temperature, light intensity and time in real time in a miniroom using a DHT-11 sensor, BH-1750 sensor, RTC, and Arduino Uno for data processing. The results of this study indicate that the prototype made can work well. The DHT-11, BH-1750 and RTC sensors used in this study can work optimally. Temperature measurement using the DHT-11 Sensor has an Error value of 1.44% and Light Intensity Measurement using the BH-1750 Sensor has an Error value of 2.48% so that it can be used and applied to the system. This research works as expected where the system created can control the indoor temperature and lighting duration in the indoor hydroponic system.
Protection and Monitoring System for LPG Leaks and Fires in Arduino-Based Rooms Ivan Triyatno; Anton Yudhana
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.4784

Abstract

This research is a development of previous research in overcoming of LPG gas leaks that cause fires. The system is designed using the main sensor MQ-6 and DHT22 sensors which will detect the gas concentration and temperature in the room, the protection system is equipped with an exhaust as a room freshener and a buzzer as a direct warning alarm and a water pump to extinguish a fire. And all of data will be displayed on the application Blynk and will send a notification on email users by using a Wi-Fi network. This system has succeeded in detecting the concentration of LPG gas with a sensor detection distance of 1 cm to 7 cm getting an average time of 1.6 seconds and percentage of error comparison 2.52%. In normal temperature detection, the percentage error is 1.14% and normal humidity is 2.98%, As for detection of rising temperature by using of wax media, the percentage error is 1.84% and humidity 1.87%. From these tests and getting results with a small percentage value this system can already be used and runs as well.
Visual Studio Application for Generation Power System Reliability Calculations Ikrima Alfi; Rifqi Fauzan Kusmayana
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.7076

Abstract

Power system reliability is affected by the reliability of its sub-systems, including generator reliability. The reliability of a power plant can be seen, among others, based on the LOLE (Loss of Load Expectation) index. Processing and calculating data using excel or matlab will take a lot of time and effort.  This is unfavorable for system evaluation which is a routine activity. The contribution of this research is to create an easy data processing method with a user-friendly display using Java programming-based Visual Studio. The research data uses generator operating data in 2018 and 2019 Hydroelectric Power Plant Ir. H. Djuanda. Calculations using visual studio have been validated with calculations using Excel. LOLE calculation results in 2018 was 0.17356748092842464 days/year and for 2019 it produced a LOLE of 0.006204969593183424 days/year. The results obtained did not exceed the PLN standard, namely 1 days/year, in other words, in 2018 and 2019 Hydroelectric Power Plant Ir. H. Djuanda has a good level of reliability.
Efficiency Comparison of Asynchronous and Synchronous Buck Converter with Variation in Duty Cycle and Output Current Ralfi Wibowo Rachmad; Tomy Abuzairi
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.7386

Abstract

There are two most commonly used topologies in buck converter applications, asynchronous and synchronous buck converter. These two topologies have its own advantages and disadvantages from a performance point of view. The difference in performance, especially in the aspect of efficiency need to be addressed further, knowing the efficiency is a crucial aspect of buck converter application. In this study, the comparison of asynchronous and synchronous topology in terms of its efficiency will be analyzed using software simulation and hardware prototypes. Software simulation will be used to validate the workings of buck converter prototypes by comparing its characteristics against the hardware prototypes. Furthermore, the performance between both topologies will be analyzed under various operating conditions. Based on the results obtained in this study, when the applied duty cycle is low, for instance in 30% duty cycle and both converters operate at the lowest current, the asynchronous topology have a better efficiency of 19.15% against the synchronous topology, however, when both converters operate at the highest current, the synchronous topology shows its efficiency advantage of 6.56% against the asynchronous topology. On the other hand, in a higher duty cycle operation, for example in 80% duty cycle, both converters have an insignificant difference of efficiency.
Dashboard for Industrial Load Control and Remote Power Factor Correction Based on Adafruit's MQTT Irgi Surya; Jaja Kustija
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.7494

Abstract

One of the user interface problems in an internet of things (IoT) system is influenced by monitoring which is easy to access, flexible and efficient in its use, has been discussed a lot but the problem is still unresolved, one solution to this problem is by presenting the Adafruit mqtt, which by using the mqtt Adafruit user interface for monitoring on an internet of things system can facilitate control and remote control. In this case the use of Adafruit mqtt is used to monitor electrical loads and improve power factor. This research presents an internet of things system that is capable of monitoring electrical load and improving power factor that already uses the Adafruit mqtt as its user interface. The method used is through the Analysis, Design, Development, Implementation, Evaluation (ADDIE) approach. The results showed that this system is feasible to use because based on the experimental results this system is able to work well and provide convenience for users and can monitor in real time current, voltage, energy, frequency, power factor, real power, apparent power, and reactive power. only by using smartphones, laptops, tablets, or computers. It is hoped that in the future this research will be able to continue to be developed so that the use of electrical energy in industry can be much more effective and efficient.
Techno – Economic Analysis of Rooftop Solar Panel Uprating on Commercial Building (Casestudy on Karawang Branch Office of XYZ Company) Aji Nur Widyanto; Muhamad Arya Krisna Adhi; Faiz Husnayain; Agus R Utomo; I Made Ardita
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.7579

Abstract

On April 22nd, 2016, Indonesia signed the Paris Agreement, which goal is that the world will enter the net-zero emission phase in 2060. To support that, it is better to increase the solar rooftop capacity have been installed. In this study, there are some variations, such as the capacity of solar rooftops based on load profile and installed power (75%, 90%, and 100%), variation of solar module placement, and variation of solar module types. The result shows that to fulfill the load needs, it will need 40 kW of inverter capacity and 49.5 kWp of PV capacity with a total module of 113 pcs. Based on the solar module type simulations result, the 440 Wp B – brand has the highest performance result among the others. Uprating solar rooftop capacity will cost around Rp.1,138,529,870 for the investment, and the payback period is around 18 years. This study finds that uprating the capacity of rooftop solar panel can reduce electricity tariffs and increase energy production. Moreover, the results of the economic analysis revealed that the initial cost, interest rate, and electricity price will play crucial roles in determining whether to launch a project or not.
An Overview of Artificial Intelligence (AI) in 6G: Types, Advantages, Challenges and Recent Applications Abdullah M. Al-Ansi; Ahmed Al-Ansi
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.7603

Abstract

The world is on the cusp of a new communications revolution. The next generation of communication networks, known as 6G, will enable a wide range of new applications and services that are not possible with current 4G or 5G networks. In overview, we will review Artificial Intelligence (AI) Types, Advantages, challenges and some of the most promising applications of 6G technology. Some of the key applications that are being developed for 6G communication networks include Digital Twin (DT), Holograms, Robot Avatar, High Density (IoT), and AR & VR. The use of these applications in 6G communication networks is not a new concept, but integration to 6G will need more improvements. These applications have been around for some time now and have seen various improvements over the years. However, with the advent of 6G communication networks, the use of AR and VR is expected to see a drastic change. This paper contributes to the existing literature about the nature of 6G and applications to give more understanding and further discussion in potential and new trends.
A Comprehensive Simulation of PEV Penetration Impact on Residential Area Distribution Network Kevin Gausultan Hadith Mangunkusumo; Joko Hartono
Buletin Ilmiah Sarjana Teknik Elektro Vol. 5 No. 1 (2023): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v5i1.7748

Abstract

Nowadays, rapid growth of electric vehicles is one of the breakthroughs for the future. Electrical utility with first stage of EV ecosystem adoption has to prepare for the impact of high demand of PEV penetration especially in residential area. High number of private charging points in residential area is a big future demand that needs to be considered. This study aims to create a comprehensive model of electric vehicle charging penetration impact in residential area with the worst possible conditions and specific data in Indonesia. Thus the grid operator can prepare for the future impact of the PEV charging in residential area. PEV charging profile and real residential load profile in Indonesia are recorded and used in this study. Driving behavior survey, distribution network modelling and PEV charging profile modelling are constructed. High PEV penetration feeder loading and voltage drop are evaluated. High PEV penetration would impact on overloading and voltage drop on the network. Uniformly distributed load has the highest loading 129.4%, on the other the highest voltage drop 0.87p.u. happen in the centralized load distribution model. Peak shifting in distribution network happen following the EV user charging behavior 17:45 shifted to 20:30. However, for the first stage EV ecosystem development, the time shifted strategy including varying the PEV charging location near the transformer could resulting valley filling and reducing the total network loses.

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