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All Journal International Journal of Applied Power Engineering (IJAPE) Jurnal Informatika dan Teknik Elektro Terapan jimel Malcom: Indonesian Journal of Machine Learning and Computer Science Electrician : Jurnal Rekayasa dan Teknologi Elektro SNTE Nemui Nyimah
Charles Ronald Harahap
Teknik Elektro, Fakultas Teknik, Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Mechanical Engineering Other

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PENGATURAN BEBAN KOMPLEMEN LAMPU DAN MOTOR LISTRIK PENGGILING KOPI SEBAGAI PENSTABIL TEGANGAN MENGGUNAKAN MIKROKONTROLER ATMEGA8535 PADA PEMBANGKIT LISTRIK TENAGA MIKROHIDRO 5 KW (Study Kasus di Desa Talang Jawa Lampung Barat) Herliansyah, - -; Harahap, Charles R; Raharjo, Yuliarto -
Jurnal Informatika dan Teknik Elektro Terapan Vol 1, No 1 (2013)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v1i1.3

Abstract

Gutters Javanese village is the village where people do not get the energy supply of electricity. People in this area make microhydro power plant, manufacture of power generation because microhydro is supported in this area are river flows from the mountains. In the study microhydro voltage control device is installed on the system controller uses ATmega8535 as the primary device. Installation of the controller circuit is due at microhydro is the case over voltage. Over voltage due to rotor rotation is over, resulting in over voltage at zero load To overcome these problems then be made to serve the load when the load shifted to zero at the expense of consumers. Complement the load is controlled by a microcontroller ATmega8535. Complement the work load placed on the system to reduce the previous voltages 310 volts to 230 volts by regulating the activation of complement load Key words: microhydro, complement Load, Load consumers.
PENDETEKSI GAS AMONIA UNTUK PEMBESARAN ANAK AYAM PADA BOX KANDANG MENGGUNAKAN MQ-135 Ryian Fatahillah Murad; Ghufron Almasir; Charles Ronald Harahap
Jurnal Ilmiah Mahasiswa Kendali dan Listrik Vol 3, No 1 (2022): Jurnal Ilmiah Mahasiswa Kendali dan Listrik
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jimel.v3i1.1739

Abstract

Adanya gas ammonia dapat menyebabkan tingginya angka kematian, pertumbuhan yang tidak optimal dan menurunnya produksi telur pada ayam. Tujuan artikel ini adalah untuk menghasilkan model pendeteksi berbasis elektronis untuk mengurangi adanya gas amonia pada kandang ayam. Model pendeteksi yang dihasilkan dikembangkan denganmenggunakan komponen elektronika komersial meliputi sensor gas amonia MQ-135, Arduino Uno, LCD 16x2 i2c, relay, dan kipas mini. Hasil pengujian pada dalam kandang menunjukkan nilai gas amonia pada rentang 6,49-52,37 ppm secara konsisten tanpa ada perubahan hasil pengukuran yang drastis dan tiba-tiba. Sistem yang dihasilkan iniberpotensi untuk diuji pada skala yang luas dan dilakukan uji standar pengukuran
Sistem Pengendalian Kecepatan Dua Motor Brushless DC (BLDC) dengan Nine Switch Inverter Menggunakan Metode PWM Charles R. Harahap
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 16 No. 3 (2022)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v16n3.2388

Abstract

Abstract Two three phase inverters which consists of 12 switches are generally required to control two brushless DC Motors, which are complicated and inefficient to control them. One inverter has 6 switches. This research develops controlling of two brushless DC Motors using nine switch inverters with Pulse Width Modulation method. Nine switch inverter needs PWM for controlling frequency and voltage. Arduino is used to generate PWM in this research. Nine switch inverters are used to convert DC voltage to AC Voltage because of BLDC needs AC Voltage to drive the rotor of motors. In controlling two BLDC Motors, it includes switching control using PWM, to adjust the input frequency which then results in the effect of frequency on the voltage, current, speed of two BLDC Motors and torque. The test of this controller consists of the condition of the motor with and without load. The test results show that the speed of two BLDC motors can be controlled simultaneously with nine switch inverters by adjusting the input frequency. Keywords two brushless DC motors, nine switch inverter, pulse width modulation (PWM), Arduino, Simulink Matlab
Pengendalian Motor Brushless Direct current Dengan Frekuensi Tinggi Pulse Width Modulation Dengan Metode Back-Electromotive Force Menggunakan Microcontroller Charles Ronald Harahap; Endah Komalasari
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 17 No. 2 (2023)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v17n2.2479

Abstract

Abstract — Research on speed control of electric motors has developed, especially the BLDC motor. In previous research, the pulse width modulation (PWM) has been controlled using the voltage and duty cycle to control the motor speed. The PWM method is a method that is widely used in controlling BLDC motor speed. This research will discuss controlling the speed of the BLDC motor using the PWM modulation method with the switching frequency of 20 KHz and the frequency generated from Arduino reaches 300 Hz. In this study, two tests will be carried out, namely no load and loaded tests. From the two tests carried out, data is obtained in the form of the speed, power, and torque of the motor based on changes in the frequency. The no-load test produces a maximum speed of 14,328 rpm, a power of 71,2 watts, and a torque of 0,047 Nm. During the load test, the maximum speed is 12,060 rpm, power is 79,3 watts, and torque is 0.062 Nm. Keywords— BLDC motor, pulse width modulation, frequency variable, Arduino Mega 2560
Perancangan Self Tuning Dua Derajat Kebebasan dengan Metode Fuzzy Logic pada Pengendalian Kecepatan Motor Sinkron Magnet Permanen Menggunakan Metode Vector Control Charles Ronald Harahap; Endah Komalasari; Nadia Julian Putri
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 17 No. 3 (2023)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v17n3.2483

Abstract

Abstract — This paper proposes self tuning Proportional-Integral/Proportional gain controller parameter in a Two Degree of Freedom (2DoF) using fuzzy logic method for speed control of permanent magnet synchronous motor. The self tuning method can automatically determine the PI-P parameters using a fuzzy logic control system. Speed control of the 3-phase permanent magnet synchronous motor is carried out by changing the 3-phase system (a-b-c) to a 2-phase system (direct-quadrature) using the vector control method. SVPWM method is used to modulate six switches on a 3 phase inverter. The results obtained using MATLAB Simulink show that by using a self-tuning fuzzy logic control system, high motor performance results are obtained, where the speed response of the permanent magnet synchronous motor shows that the step response and disturbance response are close to the ideal response. Keywords— Permanent Magnet Synchronous Motor, Self Tuning, Two Degrees of Freedom, Fuzzy Logic, Vector Control.
Three-Phase Space Vector Pulse Width Modulation with Proportional Integral Derivative Control for High-Capacity Battery Charging Nursandi, Elvin; Harahap, Charles Ronald; Setyawan, Fx Arinto
MALCOM: Indonesian Journal of Machine Learning and Computer Science Vol. 5 No. 1 (2025): MALCOM January 2025
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/malcom.v5i1.1760

Abstract

The growing consumption electricity has burdened the existing power grid, potentially leading to overloads and power outages when supply does not meet demand. Integrating alternative resources, such as Gas Power Plants (PLTG), as backup solutions can mitigate these risks. PLTG relies on various DC components to power the machines, all supplied by a high-capacity battery bank. This research is conducted at the PLTG UPK Sebalang, where the existing system cannot stabilize the rectifier voltage during battery charging. As a result, failures occur during the generator starting process. Therefore, this study aims to stabilize the output voltage of the existing three-phase rectifier system at PLTG UPK Sebalang. To achieve this goal, the Space Vector Pulse Width Modulation (SVPWM) rectifier with Proportional Integral Derivative (PID) control method is proposed. This method dynamically reduces steady-state error to produce a stable output voltage from the rectifier. In repetitive experiments, the system effectively kept the rectifier voltage stable at 125V, experiencing an average decrease of just 1.05%.
Speed control of induction motor using fuzzy logic based on internet of things Harahap, Charles Ronald; Setyawan, F. X. Arinto; Budiati, Desi
International Journal of Applied Power Engineering (IJAPE) Vol 14, No 2: June 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v14.i2.pp488-497

Abstract

The aim of this research was to propose an innovative method of controlling the speed of an induction motor (IM) using fuzzy logic, integrated with internet of things (IoT). To achieve this aim, fuzzy logic was used to increase the performance of IM in order to obtain stable speed and high system response even in the presence of disturbances. Moreover, fuzzy logic relied on rules that used linguistic variables, and its main advantage was simple yet highly accurate, enabling the system to be efficient for determining parameters compared to the time-consuming and inefficient trial-and-error method. In this research, IoT implementation used Blynk platform to control and monitor IM speed remotely. Additionally, the components used in this research included an inverter, gate driver, Arduino Mega 2560, and NodeMCU ESP8266. Pulse width modulation (PWM) was required to obtain rotational speed of the motor through MOSFET switching process. The gate driver amplified PWM signal from Arduino Mega 2560, allowing MOSFET to operate. As a result, IM achieved a stable speed, and the system response followed the reference using fuzzy logic. In addition to this process, the system could be controlled and monitored remotely. Finally, the control system was successful, and the results were presented to show the viability of the proposed method.
Perancangan Robot Penjepit Barang Berbasis Mikrokontroler ATMega 8535 Harahap, Charles Ronald
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.33

Abstract

Pengendalian Motor Brushless Direct current Dengan Frekuensi Tinggi Pulse Width Modulation Dengan Metode Back-Electromotive Force Menggunakan Microcontroller Harahap, Charles Ronald; Komalasari, Endah
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 17 No. 2 (2023)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v17n2.2479

Abstract

Perancangan Self Tuning Dua Derajat Kebebasan dengan Metode Fuzzy Logic pada Pengendalian Kecepatan Motor Sinkron Magnet Permanen Menggunakan Metode Vector Control Harahap, Charles Ronald; Endah Komalasari; Nadia Julian Putri
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 17 No. 3 (2023)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v17n3.2483

Abstract

Co-Authors - - Herliansyah, - - Budiati, Desi Endah Komalasari Endah Komalasari Endah Komalasari, Endah Ghufron Almasir Hamdani, Fadil Nadia Julian Putri Nadia Julian Putri Nasution, Rina Arjulina Nursandi, Elvin Prasojo, Bagus Riwanda , Rahmat Faisal Ryian Fatahillah Murad Sadnowo R., Ageng Setyawan, F. X. Arinto Setyawan, FX Arinto Yuliarto - Raharjo, Yuliarto -