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All Journal ELKHA : Jurnal Teknik Elektro Ensiklopedia of Journal Jurnal Teknologi dan Vokasi Journal of Humanities Education Management Accounting and Transportation
Asnal Effendi
Institut Teknologi Padang
Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Physics Social Sciences Transportation

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Power Injection on Single Phase Grid System Ismail, Fauzan; Effendi, Asnal; witrionanda, witrionanda
ELKHA : Jurnal Teknik Elektro Vol. 11 No. 1, April 2019
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v11i1.30932

Abstract

This paper deals with power injection on single phase grid connected inverter. The simple method is introduced to understand the concept of grid connected systems. A phase Lock Loop (PLL) method estimates the phase-angle of grid system. The output of PLL is used to defines Iref , and the current of inverter becomes a feedback (IL). Both current are derived to produce PWM using current mode controller method. As long as the grid system on fault condition like voltage distortion, therefore the single-phase inverter that connected into the grid should change the role and keep stabilization. The voltages sag and swell are the possible conditions that occurred on a power system. Voltage Sag is an event where the line voltage decreases from the nominal line-voltage for a short period of time. Voltage swell is the event when the line voltage increase from the nominal line voltage. By using PSIM software, the injection and absorption of power into a grid system is verified during a voltage sag, swell, and normal. The simulation shows voltage grid vg, current inverter iinv, current grid, active power P, reactive power Q. The waveform of the measured parameter is analized to define the role of inverter toward grid. the The result shows performance of the proposed inverter to absorb reactive power during swell, and inject reactive power when sagging. 
RANCANG BANGUN ROBOT PEMBERSIH RUANGAN BERBASIS ARDUINO UNO DENGAN KENDALI APLIKASI ANDROID Alfith, Alfith; Effendi, Asnal; Dasman, Dasman; Pratama, Frengki Ananda
Ensiklopedia of Journal Vol 4, No 4 (2022): Vol 4 No. 4 Edisi 1 Juli 2022
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.333 KB) | DOI: 10.33559/eoj.v4i4.1181

Abstract

The development of science and technology is currently very rapid, especially in the field of technology that affects people's lives to move forward, one of which is using robotics, in principle, the purpose of creating robots is to facilitate human work, especially since the progress of the times demands effective and efficient human work. For example, in cleaning the house, a robot was made that can help someone clean his house. This robot will later clean the floor of the house from dirt in the form of dust. This cleaning robot will be controlled with an Android application. That has been made previously and will be combined with a wireless robot control using the HC-05 Bluetooth module, which will transmit control from android to Arduino Uno as the brain of this room cleaning robot, and will process data. From android applications such as forward and backward, and turn commands and also the command  to turn on and turn off the vacuum cleaner which can also be controlled from this Android application. For the movement of the robot itself, it will use a PG28 DC Motor which will be controlled by the BTS7960 Driver. From the results of tests
MONITORING SISTEM ENERGY LIMITER BERBASIS INTERNET OF THINGS Alfith, Alfith; Effendi, Asnal; Bachtiar, Antonov; Premadi, Aswir
Ensiklopedia of Journal Vol 6, No 2 (2024): Vol. 6 No. 2 Edisi 2 Januari 2024
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v6i2.2110

Abstract

Solar power plants generate a source of direct current voltage. Then, the source of reverse voltage is generated using an inverter. The results of this study show that the specimen can be observed and controlled for 24 hours through a website through the Internet of Things technology. (IoT). It was designed using ESP266 to function as a kWh meter and is equipped with a monitoring and remote-control module. With a 220 Ω barrier value as a barrier variable, the operational reinforcement test series on the photovoltaic surveillance system has an accuracy of 97.34%. The maximum voltage generated is 225 V, with a photovoltic output at a current of 0.8 A and a minimum voltage of 185 V, so the current value is 0.7 A.Keywords: ESP8266, Internet of Things, Photovoltaic, Op-Amp
EVALUASI KINERJA SISTEM PENDINGIN KOMPRESI UAP VRF DENGAN SIKLUS INJEKSI Rachman, Arfidian; Yuana Dewi, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.86-92

Abstract

As a result of a decrease in the mass flow rate at the inlet section of a variable refrigerant flow (VRF) cooling system, the refrigerant flow system performs poorly. To increase efficiency the steam injection cycle method is used. The effects of steam injection are theoretically explored in this study over a wide range of medium pressures and ambient temperatures, and the findings are supported by experimental data. Compressor heating capacity, input power, coefficient of performance (COP), and isentropic efficiency are all affected by pressure. At low ambient temperatures, the increase in COP by steam injection is remarkable. In this study, the performance of the cooling system with the injection cycle was evaluated, the system with this injection cycle resulted in an increase in cooling capacity of 3.26% and an energy efficiency ratio (EER) of 2.32%.
PENINGKATAN PERFORMANSI MANUVER GERAKAN ROLL HEXACOPTER DENGAN METODA KENDALI PID ADAPTIF Al, Al; Premadi, Aswir; Effendi, Asnal; Alfith, Alfith; Dasman, Dasman; Syofian, Andi
Jurnal Teknologi dan Vokasi Vol 1 No 2 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.2.75-82

Abstract

In the Hexacopter flight control system, there are three very influential movements, namely Pitch, Roll and Yaw movements. Roll movement is very important to note because it affects the direction of the plane's flight. This movement is strongly influenced by the system's dynamic response to changes in hardware characteristics and the influence of changes in wind direction and speed from external systems. For this reason, this research is offered to implement a control system that can adapt to these dynamic disturbances. This study proposes the application of a proportional integral derivative (PID) control system, where constant values can adjust to dynamic changes in the system. These constant values can adjust to changes in errors and delta errors at any time. then a fuzzy logic controller (FLC) algorithm is applied, to make the constant values adaptable. The design of Fuzzification and Defuzzification is based on the maximum error and delta error limits. After real-plant testing, system performance is obtained as follows: settling time = 24mS; peak time 21mS; rise time = 9mS; delay time = 4.4mS; percent overshoot and steady state error = 1%.
TINJAUAN VARIABEL REFRIGERANT VOLUME Rachman, Arfidian; Yuana Dewi, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 1 No 2 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.2.111-120

Abstract

VRV systems are multi-split HVAC systems that maintain different portions by varying refrigerant volume. These systems control refrigerant volume for efficiency and dependability. This review aims to identify VRV system elements affecting operational and performance factors. Previous studies are crucial for future large-scale VRV development.
EXPERIMENTAL ANALYSIS OF HEAT RECOVERY WHEEL FOR TROPICAL CLIMATE Rachman, Arfidian; Yuana Dewi Rachman, Arfita; Effendi, Asnal; Nesti, Lisa
Jurnal Teknologi dan Vokasi Vol 2 No 1 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.1.92-96

Abstract

This paper presented and used experimental analysis to examine design that integrates an active heat recovery wheel mechanism into a windcatcher. A rotational thermal heat recovery is incorporated into the windcatcher channel of the proposed system. An experiment was conducted to examine how the heat recovery mechanism affected the windcatcher performance, demonstrating the system ability to provide the necessary fresh air rates. A test room model, measuring 4x4x3 meters and depicting a small classroom, was integrated with the windcatcher model. Ventilation rates managed to supply sufficient ventilation even with the rotational heat recovery wheel blocked. This active recovery has the potential to lessen the demand on space heating systems in addition to providing enough ventilation. The heat in the exhaust airstreams was caught and transferred to the incoming airstream, boosting the temperature between 7-9oC depending on the indoor/outdoor conditions. This indicates that there is a great deal of room for further development of the idea, allowing for larger-scale testing and investigation of the system's heat transfer characteristics.
KARAKTERISTIK SISTEM PEMBANGKIT LISTRIK TENAGA SURYA KAPASITAS 100 WP Madona, Maisyara; Effendi, Asnal; Dasman, Dasman; Alfith, Alfith; Al, Al
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.22-29

Abstract

The energy crisis is a major problem in Indonesia, especially the problem of electrical energy. Electrical energy is energy that is important for humanity throughout the world. We can see from people's activities that cannot be separated from the use of electricity, such as the use of devices and technology that are currently used all using electricity. This phenomenon proves that electricity is very important and cannot be separated from community activities. For some time now, experts have changed their views regarding the use of energy resources in Indonesia. Be aware that fossil fuels, the main energy source, will be threatened with scarcity in the coming years. This research method uses a design/prototype method by making equipment and carrying out a series of tests and collecting data. Based on data that has been in sunny and cloudy weather, solar panels can produce the highest voltage of 17.79 which occurs between 12.30 to 16.30. while the lowest voltage produced by solar panels is around 12,6 Volts for the highest temperature of 34ºC for the highest current is 4,4 A and the highest light intensity is 64422 lux.
PERENCANAAN SISTEM KENDALI MODEL REFERENCE Al, Al; Rahmawati, Gusri; Premadi, Aswir; Effendi, Asnal
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.37-46

Abstract

The commercial use of drones has increased rapidly in this sector in the last few decades, one of which is the Hexacopter Type Unmanned Aerial Vehicle (UAV). Hexacopter is a flying robot without a pilot that can be controlled manually using a remote control and controlled automatically or on autopilot. The advantage of the hexacopter is its ability to maneuver flexibly, it can move in 8 cardinal directions without needing to turn first. However, despite their advantages, certain hexacopters must continue to fly stably under a variety of changing conditions, such as changing weather, different loads, or changing environmental conditions. For this reason, a control system is needed that is able to adapt to these changes. This condition makes it interesting to carry out experimental and simulation studies, namely designing a hexacopter with Model Referene Adaptive Control (MRAC) control. By using a Model Reference Adaptive Control (MRAC) control system with the main control using PID control, the response given is good and optimal, the system parameters reach the values: rise time (ts) 1.0709 s, delay time (td) 0.99 s, peak time (tp ) 2.6600 s, settling time (ts) 3.9351 s, overshoot (mp) 4.0847 and steady state error 0.0001%. The mathematical analysis of the MRAC control system needs to be studied in more depth so that the MRAC control calculations become more accurate.
SISTEM TRACKING DAN MONITORING MOBIL RENTAL MENGGUNAKAN SENSOR GPS BERBASIS NODEMCU ESP32 Alfith, Alfith; Effendi, Asnal; Al, Al; Maulana, Rizki
Jurnal Teknologi dan Vokasi Vol 2 No 2 (2024): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2024.2.2.84-96

Abstract

Obtained conditions in which the Neo6 GPS module can detect the Earth's coordinates in the form of latitudes and volumes as well as the speed of the vehicle's movement to its coordinates. The app knows where you are based on the coordinates, speed, and impact of the car. In addition, the app sends speed warning notifications. In addition, the application can detect the correct or incorrect username and password to protect the view form. In addition, for research on a straight road and at a constant speed, the accuracy of the equipment will be tested by collecting GPS speed data and actual speed data if there is a significant change in speed in a short period of time. With four vehicle collision detection positions, testing this system yields an accurate conditional value. If an accident occurs, it will be immediately sent to the application and sent to a vehicle crash site used, as well as to the firebase database.
Co-Authors Al Al Alfith Alfith Andi Syofian Antonov Bachtiar Anugrah, Anggun Arfidian Rachman Arfita Yuana Dewi Aswir Premadi Dasman Dasman Erhaneli, Erhaneli Ibrahim, Maulana Malik Ismail, Fauzan Madona, Maisyara Nesti, Lisa Peprizal, Peprizal Pratama, Frengki Ananda Putra, Jos Mised Rahmat Fajri Rahmawati, Gusri Rizki Maulana, Rizki Saputra, Arifwindi Usmanto, Febri Witrionanda Witrionanda Yogi Saputra, Yogi Yuana Dewi Rachman, Arfita Yuana Dewi, Arfirta Yusreni Warmi