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All Journal International Journal of Electrical and Computer Engineering ELKHA : Jurnal Teknik Elektro Bulletin of Electrical Engineering and Informatics RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System Jurnal Pro Hukum : Jurnal Penelitian Bidang Hukum Universitas Gresik MEANS (Media Informasi Analisa dan Sistem) Jurnal Abdimas Ilmiah Citra Bakti (JAICB) Jurnal Sosial dan Teknologi Mejuajua Journal of Renewable Energy, Electrical, and Computer Engineering Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) The International Journal of Medical Science and Health Research Impression : Jurnal Teknologi dan Informasi
Irwanto, Muhammad
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Estimasi Daya Keluaran Fotovoltaik Menggunakan Algortima Genetik Bago, Sri Intan; Irwanto, Muhammad
MEANS (Media Informasi Analisa dan Sistem) Volume 10 Nomor 1
Publisher : LPPM UNIKA Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The development of renewable energy systems is a major focus in efforts to reduce environmental impacts and dependence on fossil energy sources. One promising renewable energy source is solar energy, which can be utilized through photovoltaic technology. However, to increase the efficiency of the photovoltaic system, an accurate estimate of the output power produced is required. This study aims to develop a photovoltaic output power estimation model using MATLAB-based Genetic Algorithm (GA). Genetic Algorithm was chosen because of its ability to find optimal solutions to a problem using the principles of natural selection. In this study, parameters that affect the performance of the photovoltaic system, such as sunlight intensity, cell temperature, and panel tilt angle, will be analyzed and modeled. The results of this photovoltaic output power estimation model are expected to provide more accurate predictions, so that they can be used for decision making in the planning and development of solar energy systems. Through simulation and data analysis, this study is expected to make a significant contribution to the development of photovoltaic technology in Indonesia and increase the efficiency of its use. Keyword : Photovoltaik, Output power, Genetic Algorithm, MATLAB, Renewable Energy
Analysis of Characteristics of Three Phase Transformer Using MATLAB Ramadhan, Fakhri; Novalianda, Sari; Sihombing, Panangian Mahadi; Nugraha, Yoga Tri; Irwanto, Muhammad; Md Arshad, Syahrun Nizam; Othman, Mohd Azlishah
Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Vol 12 No 1 (2025): Jurnal Ecotipe, April 2025
Publisher : Jurusan Teknik Elektro, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jurnalecotipe.v12i1.4534

Abstract

Three-phase transformers are integral components of modern electrical power systems, serving as the backbone of energy transmission and distribution networks. Their primary purpose is to step up or step-down voltage levels efficiently, enabling the transfer of electrical power over long distances with minimal losses. Due to their widespread use in industrial, commercial, and residential applications, understanding the operational characteristics of three-phase transformers is crucial for improving energy efficiency, ensuring reliability, and optimizing performance. The analysis of transformer characteristics, such as efficiency, voltage regulation, power losses, and behavior under varying load conditions. This research aims to analyze the characteristics of three-phase transformers using MATLAB. The results of the analysis obtained in the study of the characteristics of 3-phase transformers produce an active power (P) of 6183.42 W, a reactive power (Q) of 3832.14 VAR, an apparent power (S) of 7274.61 VA and a transformer efficiency of 97.75% with a time of 0.02 s and produces losses in copper of 81.65 W which forms electromagnetic field radiation where the radiation pattern of the electric field (E field) and the magnetic field (H field) is in the form of a polar graph.
PENINGKATAN KEMAMPUAN ROBOTIK MELALUI PELATIHAN ROBOT LINE FOLLOWER PADA SISWA SMA GLOBAL PRIMA MEDAN Panjaitan, Christin Erniati; Nainggolan, Winner Parluhutan; Irwanto, Muhammad; Fahmi, Muhammad Ikhwan; Maha, Deny Hasminta Sembiring; Gultom, Togar Timoteus
Jurnal Abdimas Ilmiah Citra Bakti Vol. 6 No. 3 (2025)
Publisher : STKIP Citra Bakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38048/jailcb.v6i3.5380

Abstract

SMA Global Prima Medan memiliki klub robotik, namun masih menghadapi keterbatasan sumber daya manusia yang berkompeten untuk memberikan pelatihan merakit robot. Permasalahan ini berdampak pada minimnya pemahaman siswa terkait komponen elektronik, bahasa pemrograman, dan keterampilan merakit robot. Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan kemampuan siswa dalam bidang robotik melalui pelatihan perakitan Robot Line Follower. Mitra dalam kegiatan ini adalah 80 siswa SMA Global Prima Medan. Metode pelaksanaan menggunakan pendekatan partisipatif dengan tiga tahapan utama, yaitu penentuan materi dan komponen, pelaksanaan pelatihan, serta evaluasi pemahaman siswa. Hasil kegiatan menunjukkan bahwa siswa memperoleh peningkatan signifikan dalam pemahaman komponen (95%), keterampilan merakit robot (80%), serta cara kerja sensor infrared (80%), meskipun pemahaman bahasa pemrograman C++ masih rendah (20%). Evaluasi pelaksanaan pelatihan juga memperlihatkan tingkat kepuasan yang sangat tinggi, baik terhadap pemateri, instruktur, maupun fasilitas yang digunakan. Kegiatan ini membuktikan bahwa pelatihan robotik mampu menumbuhkan antusiasme siswa serta memberikan kontribusi nyata dalam memperkuat keterampilan teknologi di tingkat SMA.
Analysis of the Effect of Temperature on Performance Efficiency in Three Phase Transformers Nugraha, Yoga Tri; Pangestu, Adam; Wardani, Sumita; Irwanto, Muhammad; Pasaribu, Faisal Irsan; Evalina, Noorly
ELKHA : Jurnal Teknik Elektro Vol. 17 No.2 October 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v17i2.92879

Abstract

Transformers are essential components in electrical power distribution systems, and their performance is significantly influenced by operating temperature. High temperatures can lead to increased power losses, particularly copper losses, which reduce transformer efficiency. This research examines the impact of temperature on the efficiency of three-phase transformers, focusing on copper losses and the role of cooling systems in maintaining optimal performance. Using a combination of Thermovision infrared imaging and MATLAB simulations, this research introduces a novel integrated approach to correlate real-time thermal data with theoretical modeling of transformer losses. Unlike previous research that relies solely on either simulation or temperature sensors, the use of Thermovision provides spatially resolved, non-invasive temperature measurements that validate and enhance the accuracy of MATLAB-based thermal-electrical models. The results reveal that the operational temperature of 52.9 °C, as detected by Thermovision, is within safe limits; however, higher temperatures significantly decrease efficiency. The efficiency drops from 92.8% at 25 °C to 90.4% at 120 °C. The exponential trend in copper losses with temperature rise underscores the critical role of effective cooling and temperature monitoring systems. While the magnetic flux remains constant, maintaining lower operating temperatures is essential to prevent premature damage and extend transformer lifespan. Thermovision results were used to validate the simulations. Despite small discrepancies, the consistent pattern provides confidence that the simulation model is sufficiently accurate for performance prediction.
Evaluation of Wireless Solar Power Transfer System Performance in Partial Shadowing Situation Gultom, Togar Timoteus; Irwanto, Muhammad
ELKHA : Jurnal Teknik Elektro Vol. 17 No.2 October 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v17i2.97636

Abstract

The wireless solar power transfer (WSPT) system is impacted by solar radiation that arrives on the surface of the solar module. The objective of the research is to evaluate the performance of the WSPT system under a shadowing situation. The method of this research is that the solar module and WSPT are modeled and simulated using MATLAB SIMULINK. Three solar modules with different degrees of solar irradiation are subjected to it. The research results indicate that to meet the system frequency of 50 Hz and match the frequency of both coils, the inductance of the transmitter and receiver coils, which is 0.1689 H, should be connected in parallel to a capacitor of 60 µF. It shows that the three solar modules connected in series have an output voltage of 177 V. It shows that the WSPT system and solar modules' performance are impacted by the shadowing situation. Higher shadowing levels will lessen the amount of sunlight that reaches the solar modules' surface. It implies that both the WSPT system's performance and that of the solar modules will decline concurrently.
Modelling Demand for Energy Sources as Alternative Energy in the Province of North Sumatra Nugraha, Yoga Tri; Irwanto, Muhammad
Journal of Renewable Energy, Electrical, and Computer Engineering Vol. 2 No. 2 (2022): September 2022
Publisher : Institute for Research and Community Service (LPPM), Universitas Malikussaleh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jreece.v2i2.9278

Abstract

Energy is needed to support daily human activities. Energy usage for the necessities of life is always increasing every year. So far, the energy used comes from fossils, namely coal and oil. Every year fossil energy reserves are decreasing. To overcome these problems, a potential alternative energy source that can replace fossil energy is needed, namely renewable energy. Potential of renewable energy is one of the alternative sources of energy supply and security in the Province of North Sumatra. To ensure the resilience of renewable energy to run sustainably. It is necessary to analyze the potential of renewable energy in North Sumatra by using the Long-range Energy Alternatives Planning System. The results obtained show that North Sumatra has a great potential of energy sources as alternative energy, namely hydro energy and wind energy. It is forecasted that for the year 2027, hydro energy has a potential growth of 3,7 million megawatt-hours and wind energy has a potential growth of 2,2 million megawatt-hours.
Pemakzulan Gibran Rakabuming sebagai Wakil Presiden dalam Perspektif Peta Politik di Parlemen Indonesia Irwanto, Muhammad
Jurnal Sosial Teknologi Vol. 5 No. 6 (2025): Jurnal Sosial dan Teknologi
Publisher : CV. Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsostech.v5i6.32238

Abstract

Pemilihan umum serentak 2024 di Indonesia menghasilkan terpilihnya Gibran Rakabuming Raka sebagai Wakil Presiden mendampingi Prabowo Subianto, yang memunculkan wacana pemakzulan karena dugaan pelanggaran etika konstitusional dalam proses pencalonannya. Penelitian ini bertujuan untuk menganalisis aspek hukum, etika, dan politik terkait pemakzulan Gibran, dengan fokus pada ketentuan konstitusional dalam UUD 1945 serta kekuatan politik di parlemen. Metode yang digunakan adalah yuridis-normatif dengan pendekatan konseptual dan politik hukum, mengkaji dinamika politik parlemen setelah Pemilu 2024. Hasil penelitian menunjukkan bahwa meskipun terdapat potensi pelanggaran etika dalam pencalonan Gibran, hambatan prosedural dan politik membuat pemakzulan sulit dilaksanakan. Koalisi besar yang mendukung pemerintahan Prabowo-Gibran menguasai mayoritas kursi di DPR, sehingga pemakzulan lebih menjadi wacana simbolik daripada langkah konstitusional yang realistis. Penelitian ini memberikan perspektif baru mengenai proses pemakzulan dalam sistem presidensial Indonesia dan dinamika politik pasca-Pemilu 2024.
National Media Narrative Analysis In Reporting Related To The Discourse On Amendment Of The 1945 Constitution In Political Dynamics In Indonesia Irwanto, Muhammad
Jurnal Pro Hukum : Jurnal Penelitian Bidang Hukum Universitas Gresik Vol 11 No 3 (2022)
Publisher : Fakultas Hukum Universitas Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55129/.v11i3.2120

Abstract

The emergence of issues and discourses on the Amendment of the 1945 Constitution, related to the recent extension of the President's term of office, has attracted serious attention from various elements of society in Indonesia, both for and against the discourses and opinions that have developed. This research is a qualitative research, by conducting an assessment of the models and narratives used by the national media in Indonesia, be it print media, electronic media, or television media. There are three discussions that are the focus of this research, namely the study and analysis of narratives in the national media coverage related to the extension of the presidential term, legal and political studies, to the implications in social dynamics on the issue of extending the presidential term. This research finds that national media narratives, such as the electronic media Tempo, Detik, Kompas, Tribune, JawaPos, have provided a description of information that is quite proportional in presenting various related sources that can interfere with concentration on more pressing problems in Indonesia today. . In the legal and political aspects, the Amendment certainly requires significant support from the DPR, the responses of several main parties that supported and supported President Joko widodo in the 2019 Presidential election, such as the Indonesian Democratic Party and the Indonesian Solidarity Party, showed that they did not provide an encouraging response for the support group. additional term of office of the President, although the response may change from time to time. In the social aspect of society, the issue of extending the term of the President, received a sufficient response in raising political tensions. Several important issues, such as the government's failure to stem the price of palm oil and the plan to increase the price of Pertamax fuel, are considered amid the issue of extending the term of office of the President.
Parameter tuning of PIDG controller on maximum photovoltaic power point for battery charging system Irwanto, Muhammad; Timoteus Gultom, Togar; Satria, Habib; Ismail, Baharuddin; Erniati Panjaitan, Christin; Syukri, Mahdi
Bulletin of Electrical Engineering and Informatics Vol 14, No 6: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v14i6.11044

Abstract

Maximum photovoltaic power point (MPVPP) based on DC-DC buck converter is supplied by photovoltaic module. A controller method is needed to control the signal that it drives the switching component of DC-DC buck converter. The previous researcher conducts proportional integral derivative (PID) controller applying the DC-DC buck converter, but only its parameters (proportional, KP, integral, KI, and derivative, KD) are studied. This paper presents MPVPP based on PID with gain (PIDG) controller on the DC-DC buck converter by tuning the parameters of KP. KI and KD and adding a gain, G connected to PIDG controller for charging 12 V, 7 Ah battery. The DC-DC buck converter is designed for the output voltage of 14.7 V and output power of 150 W and modelled using Simulink MATLAB. The simulation results show that the parameters of KP=0.0032, KI=1, and KD=4×10-7 are suitable to control the switching component. The gain, G gives significant effect on the settling time and the time to reach their steady state value of output voltage of 14.7 V. The battery SOC can increase 1.36% per second, if the initial SOC is 25%, thus it needs arround 55 seconds to reach the fully charging condition.
Co-Authors Adam Pangestu angin, Despaleri Perangin- Ar Rasyid, Arya Bago, Sri Intan Baharudin, Nor Hanisah Balatif, Muhammad Iqbal Dina Maizana Erniati Panjaitan, Christin Evalina, Noorly Fahmi, Muhammad Ikhwan Ginting, R T Habib Satria Hermansyah Indra Roza Indri Dayana Ismail, Baharuddin Istiningtyas, Kartika Jusoh, Muzzammil karo, Muhammad Azlin Karo- Karo-Karo, Muhamad Azlin Khoirunnida Laia, Yulianus Maha, Deny Hasminta Sembiring Mahdi Syukri Md Arshad, Syahrun Nizam Moranain Mungkin Muhammad Fadlan Siregar Nainggolan, Winner Parluhutan Nisja, Indra Novalianda, Sari Othman, M.A. Othman, Mohd Azlishah Othman, Mohd. Azlishah Panangian Mahadi Sihombing Panjaitan, Christin Erniati Pasaribu, Faisal Irsan Perangin-angin, Despaleri Ramadhan, Fakhri Rida, Rizkha Sembiring Maha, Denny Hasminta Simanjuntak, Puan Maharani Sumita Wardani Timoteus Gultom, Togar Togar Timoteus Gultom Winda Sari, Vina Yoga Tri Nugraha Zakaria, Zulkarnay Zebua, Tenuman