cover
Contact Name
Aristo
Contact Email
aristo90c@gmail.com
Phone
+6281341300747
Journal Mail Official
foristekelektro@gmail.com
Editorial Address
Laboratorium Studio Lt. 2 Jurusan Teknik Elektro Fakultas Teknik UNTAD Palu, Sulawesi Tengah 94118
Location
Kota palu,
Sulawesi tengah
INDONESIA
Foristek
Published by Universitas Tadulako
ISSN : 20878729     EISSN : 25797174     DOI : https://doi.org/10.54757
Foristek is a scientific journal published with the aim of facilitating academics and researchers to publish their research results in the field of Innovation electrical engineering. Journal of the Electrical and Information Engineering Forum (Foristek) is a journal published by the Department of Electrical Engineering, Tadulako University. Foristek began publication on September 2, 2011 and published regularly twice a year in May and November.
Articles 191 Documents
PERANCANGAN FLYBACK CONVERTER UNTUK CATU DAYA DRIVER MOTOR BLDC ( BRUSHLESS DIRECT CURRENT ) Agus Mahendra; Sapril Sapril; Maryantho Masarrang
Foristek Vol. 9 No. 2 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (763.171 KB) | DOI: 10.54757/fs.v9i2.60

Abstract

Flyback Converter is an electronic circuit that can increase the output voltage value, the voltage value can be adjusted by changing the value of the duty cycle. This Flyback Converter will be controlled by the Pulse Width Modulation method as the output voltage setting and this research is equipped with a feedback function as monitoring and control of Input Pulse Width Modulation. This designed flyback converter aims to provide an isolated power supply as a power source for Brushless Direct Current Motor drivers, and this research was conducted to analyze how much power the flyback converter can produce to be able to supply Brushless Direct Current Motor drivers. The results of the analysis obtained in the research Design of flyback converter for power supply of BLDC (Brushless Direct Current) motor driver that is flyback converter is given an input voltage of 31 VDC and output voltage of 15 VDC, rheostat load with a capacity of 39 Ohm, a frequency of 31 KHz in the form of a box wave duty cycle reaches 70%. Flyback converter designed to produce maximum power of 49.6 watts on 70% duty cycle testing.
PERANCANGAN GEOGRAPHIC INFORMATION SYSTEM UNTUK TRACKING DAN ROUTING MENGGUNAKAN ALGORITMA DIJKSTRA PADA KENDARAAN ANGKUTAN UMUM Muh. Aristo Indrajaya
Foristek Vol. 9 No. 2 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.465 KB) | DOI: 10.54757/fs.v9i2.61

Abstract

The ability to do tracking and routing of a motorized vehicle is very useful in everyday life, such as security on private vehicles, public transportation systems, mass transportation fleet management and others. In this study, we designed a Geographic Information System (GIS) application that will be applied to public transport services. This system will in real time track the position of each vehicle (taxi) and be able to perform automatic service for every taxi request by the customer. Dijkstra's algorithm is a graph search algorithm that solves the shortest path problem that originates from one node for a graph where the weight of the node must not be negative. The analysis is done by examining the node with the smallest weight and inserting it into the set of solutions with the initial search for the origin node requiring knowledge of all paths and weights. Dijkstra's algorithm which is applied to this system will function to find the most suitable taxi for customers by using distance parameters and traffic density levels as the weight value.
RANCANG BANGUN ALAT UKUR FLEKSIBILITAS TUBUH MENGGUNAKAN SENSOR JARAK BERBASIS MIKROKONTROLER Roynald Natan Nugrawan, Tan Suryani Sollu, Nurhani Amin
Foristek Vol. 9 No. 1 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (687.552 KB)

Abstract

Body flexibility is one of the factors that greatly helps physical health because it can help in prevention, help restore muscle, and improve efficiency in various physical activities. One method to measure the body speed level is Sit and Reach Test using the Sit and Reach Box Scale measurement tool. Technically, this measuring instrument is still manual, simple and its production is still very limited. Therefore we need a measuring device to use electronic components to help process better and better in terms of which can be adjusted to good or bad by using the parameter norm Sit and Reach Test. The purpose of this study is to design a flexibility measuring instrument using a microcontroller based proximity sensor. This tool works with the arduino unu microcontroller as the main controller, HC-SR04 ultrasonic sensor as a distance reader for body flexibility, LED indicators and speakers as a sign of body flexibility, then LCD and delphi 7 applications using serial communication as a display of body flexibility.
RANCANG BANGUN MODUL PRAKTIKUM APLIKASI OP-AMP BERBASIS IC 741 DAN IC 301 Wahyu Rizal Nugraha; Tan Suryani Sollu; Ardi Amir
Foristek Vol. 9 No. 1 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (824.026 KB) | DOI: 10.54757/fs.v9i1.65

Abstract

The objective of this research is to design and create a practicum application of op-amp (operational amplifier) based on IC 741 and IC 301. By adding the components R (Resistor) C (Capacitor) IC op-amp can be applied into several series. In this practical tool there are several modules of the experiment such as multiplier, the enumerator, deduction, comparison, integrator, differentiators. This tool also equipped with a series active filter such as low pass filter, high pass filter, band pass filter and band stop filter. This practical tools requires some tool support in the form of power supply as an input voltage, a function generator to generate signals with different shapes as desired in accordance with the requirements when the practical activities and the oscilloscope as a tool of reader input waveform and the output of the circuit that exist in practical tools. Practical activities and oscilloscopes as input and output wave reader from the circuits in the practicum
RANCANG BANGUN ALAT PENDETEKSI KONDISI TELUR AYAM BERBASIS MIKROKONTROLER ATMEGA 32 DENGAN SENSOR CAHAYA Afdal Tahir; Mery Subito; Agustinus Kali
Foristek Vol. 9 No. 1 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.551 KB) | DOI: 10.54757/fs.v9i1.66

Abstract

When consumers buy eggs, consumers should be more careful choosing the egg because there are some eggs that the quality has been decreased or the eggs are damaged and cannot be consumed anymore. This is caused by the length of egg storage time and didn’t have a tool that capable to detect the condition of the egg. People or egg breeders / entrepreneurs habit on looking the quality of eggs still use manual way, as a result it takes a long time because it must select the eggs condition one by one. The purpose of this research is to design and make the detection tool of chicken egg condition with ATmega 32 microcontroller using light sensor, so that the time efficiency and the result of egg selection becomes faster. . The use of tools is very easy and simple so that consumers or breeders / entrepreneurs can use it. Then to simplify and speed up the selection time of chicken eggs breeder or entrepreneur to distinguish good and damaged egg condition.
EVALUASI SETTING RELAI JARAK (DISTANCE RELAY) PADA SALURAN UDARA TEGANGAN TINGGI (SUTT)150 kV ANTARA GARDU INDUK SIDERA-GARDU INDUK TIPO Martho Pamula; Sangbua Dinsol Pirade; Yulius S. Pirade; Nurhani Amin
Foristek Vol. 9 No. 1 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v9i1.67

Abstract

Abstract-Overhead line high voltage (SUTT) or commonly called a transmission network or transmission line has very important role in the process of distribution of electrical from power plants to load centers continuously. However, overhead line is one component in the system which is often fault. To avoid damages and greater losses, it has used the distance which is as the primary protection in securing the transmission network or transmission line. In this research, it discussed about one phase-neutral short circuit that happens on line transmission connected to Sidera-Tipo substation by calculating the current fault andoperating time of distance relay using the software of ETAP (electric transientandanalysis program) 12.6.0.
PEMODELAN DIRECT FIELD ORIENTED CONTROL (D FOC PADA PENGATURAN KECEPATAN MOTOR INDUKSI TIGA PHASA Rizana Fauzi; Jumiyatun Jumiyatun; Maryantho Masarrang
Foristek Vol. 9 No. 1 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (916.482 KB) | DOI: 10.54757/fs.v9i1.68

Abstract

The 3 phase induction motor in its use is increasingly growing, so research on the speed regulation of the 3 phase induction motor is also increasingly being studied. This is because the use of 3 phase induction motors in industry and especially hybrid vehicles is increasingly being developed. But there are some disadvantages of induction motors, one of which is the characteristics of non-linear parameters, especially rotor resistance which has varying values for different operating conditions, so it cannot maintain its speed constantly if there is a change in load. This of course can affect the performance of an induction motor. To get a constant speed and better system performance on load changes a controller / controller is needed. This study aims to model the parameters used in Direct Field Oriented Control (DFOC) using Matlab SIMULINK. With the controlled dq parameter, the induction motor will be more stable, because the dq parameter determines the stability of the changes in torque and flux in the induction motor. In the results of implementation, it can be seen that the use of DFOC can be used as an approach in the speed regulation of the induction motor. and with the use of PI controls it can help the output response get better with a shorter response time to reach the reference value.
ANALISIS KONTINGENSI PADA SISTEM TENAGA LISTRIK SULAWESI UTARA - GORONTALO Ekoriskiyanto Ekoriskiyanto; Yasin Mohammad; Ervan Hasan Harun
Foristek Vol. 9 No. 1 (2019): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (803.39 KB) | DOI: 10.54757/fs.v9i1.69

Abstract

IMPLEMENTASI KONTROL PROPORSIONAL, INTEGRAL DAN DERIVATIF (PID) TERHADAP KECEPATAN MOTOR DC Andi Fatmawati, Mery Subito, Baso Mukhlis
Foristek Vol. 8 No. 1 (2018): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.456 KB)

Abstract

Recently, research on DC motor has been rapidly developed, from the wether simple until the advanced / complicated . DC motor utilizes DC power connected to its armature and field (stator) winding, in which the power will be converted to mechanical energy. In addition, DC motor has beneficial in big initial torgue and simple velocity control. When DC motor given the burden of arbitrary, rotation speed of motor also change.PID method was employed to control the rotation speed remaining constant. Implementation and simulation method was proposed in this research. The result shows that when 12,5 V of voltage was applied to DC Motor, at no load – open loop, the rotation speed was 2000 rpm. Increasing load up to 0,5 N.m, decreased the rotation from 2000 rpm to 1404 rpm. Furthermore, for closed loop using Proportional control (P), Proportional Integral (PI) and Proportional Derivatif (PD) control. proved that rotation of motor was unstable. Whereas, PID control method can stabilize the rotation of motor and give just response,reacling steady state at 3,4 s with 0,004 V of error.
RANCANG BANGUN PENGONTROLAN PENGISIAN BATERAI DENGAN SUMBER SEL SURYA BERBASIS ARDUINO Aria Nurul Haq, Saipul, Tan Suryani Sollu, Yusnaini Arifin
Foristek Vol. 8 No. 1 (2018): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1520.533 KB)

Abstract

Palu is municipality located in equator where solar radiation is abundantly available. therefore, utilization of solar energy is potential. solar energy technology has some advantages, such as are of renewable energy, having no pollution an d available everywhere. recently, the use of solar energy technology, especially photovoltaic, has been used widely such as battery charger using photovoltaic. charging battery with photovoltaic as source, has been limited by instability of photovoltaic output voltage. so voltage input of battery is also fluctuated. This research applies cuk converter to increase and decrease the voltage from photovoltaic. to stabilize the output of cuk converter at 13,8 V. PID control is applied with Kp,Kd,Ki, and setpoint are 0.5, 0.25, 0.02, and 110 respectively. The result shows that use of cuk converter can raise and decrease the source voltage by regulating duty cycle, as well reduce ripple of photovoltaic voltage. the average efficiency of the cuk converter is 79 % when charge the battery. the duration time needed to charge fully the battery is 2-4 hours.

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