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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) JURNAL SISTEM INFORMASI BISNIS Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Pendidikan Teknologi dan Kejuruan JTEV (Jurnal Teknik Elektro dan Vokasional ELKHA : Jurnal Teknik Elektro Jurnal Pendidikan Indonesia Jurnal Inovasi Teknologi Pendidikan Jurnas Nasional Teknologi dan Sistem Informasi JURNAL NASIONAL TEKNIK ELEKTRO Jurnal Teknik Sistemasi: Jurnal Sistem Informasi INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Journal of Educational Research and Evaluation Journal of Applied Engineering and Technological Science (JAETS) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat JPTE: Jurnal Pendidikan Teknik Elektro JTEIN: Jurnal Teknik Elektro Indonesia MSI Transaction on Education Mechanical Engineering for Society and Industry The Indonesian Journal of Computer Science
Krismadinata Krismadinata, Krismadinata
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Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Simulasi Pengontrolan Tegangan Arus dan Frekuensi Generator Induksi Tiga Fasa Menggunakan Electronic Load Controller Tipe AC-DC Konverter Tiga Fasa Anhar, Nur Fajri; Krismadinata
MSI Transaction on Education Vol 5 No 3 (2024): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v5i3.136

Abstract

Generator induksi umumnya digunakan di daerah terpencil namun cenderung rentan terhadap fluktuasi tegangan. Penelitian ini mengusulkan penggunaan AC-DC Konverter 3 Fasa dengan Electronic Load Controller (ELC) untuk mengatasi masalah tersebut. Konverter ini mengubah tegangan AC menjadi DC dengan nilai bervariasi, yang diatur oleh ELC untuk menjaga tegangan generator dalam rentang yang diinginkan dan memperbaiki frekuensinya. Hasil penelitian menunjukkan bahwa tegangan keluaran yang bervariasi dapat diimbangi secara real-time dengan konsumsi daya, meningkatkan keandalan dan efisiensi generator induksi dalam menyediakan listrik stabil di daerah terpencil. Induction generators are generally used in remote areas but tend to be susceptible to voltage fluctuations. This research proposes the use of a 3 Phase AC-DC Converter with an Electronic Load Controller (ELC) to overcome this problem. This converter converts AC voltage to DC with varying values, which are regulated by the ELC to keep the generator voltage within the desired range and increase its frequency. The research results show that variations in output voltage can be balanced in real-time with power consumption, thereby increasing the reliability and efficiency of induction generators in providing stable electricity in remote areas.
Rancang Bangun Inverter Satu Fasa dengan SPWM Bipolar Aprialdi; Krismadinata
MSI Transaction on Education Vol 5 No 2 (2024): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v5i2.138

Abstract

Penelitian ini membahas perancangan dan pembuatan sebuah inverter satu fasa yang menggunakan teknik modulasi lebar pulsa sinusoidal (SPWM) bipolar. Penelitian ini bertujuan untuk menciptakan inverter yang efisien dan mampu menghasilkan gelombang sinusoidal yang murni, cocok untuk aplikasi dalam sistem tenaga listrik. Metode penelitian yang digunakan adalah Research and Development (R&D), yang meliputi tahapan analisis kebutuhan, desain sistem, pengembangan perangkat keras dan perangkat lunak, serta pengujian dan evaluasi. Metode SPWM bipolar digunakan untuk mengatur pulsa-pulsa output inverter dengan memperhatikan efisiensi dan kualitas gelombang keluaran. Penelitian ini mencakup tahapan pemodelan, simulasi, dan implementasi praktis dari inverter. Hasilnya menunjukkan bahwa inverter yang dikembangkan mampu menghasilkan gelombang sinusoidal yang cukup murni. Implementasi praktis dari inverter ini memiliki potensi aplikasi yang luas dalam berbagai sistem tenaga listrik. This research discusses the design and manufacture of a single-phase inverter that uses bipolar sinusoidal pulse width modulation (SPWM) technique. This research aims to create an inverter that is efficient and capable of producing pure sinusoidal waves, suitable for applications in electric power systems. The research method used is Research and Development (R&D), which includes the stages of needs analysis, system design, hardware and software development, and testing and evaluation. The bipolar SPWM method is used to regulate the inverter output pulses with respect to efficiency and output wave quality. This research includes the stages of modeling, simulation, and practical implementation of the inverter. The results show that the developed inverter is capable of producing fairly pure sinusoidal waves. The practical implementation of this inverter has wide application potential in various power systems.
Rancang Bangun Kendali Soft Starter Motor 3 Fasa dengan AC-AC Konverter Gunawan, Andriyan; Krismadinata
MSI Transaction on Education Vol 5 No 2 (2024): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v5i2.143

Abstract

Pada penelitian ini membahas tentang pengontrolan kendali Motor 3 Fasa konverter AC-AC tiga fasa. Kontrol fasa ini memudahkan untuk mengontrol tegangan bolak-balik. Tegangan keluaran AC diperoleh dengan mengkonversi tegangan AC dengan mengubah nilai efektif/ nilai rms tegangan AC yang disuplai ke beban menggunakan jenis thyristor TRIAC sebagai sakelar. Dengan menggunakan sinyal AC untuk mengubah tegangan keluaran pada frekuensi dasar tetap, tegangan keluaran konverter AC ini dipicu oleh sudut penyalaan triac. Pada penelitian ini, kami merancang rangkaian dengan tegangan keluaran AC tiga fasa 0 hingga 220 VAC untuk mengontrol soft starter menggunakan konverter AC-AC. Pengaturan tegangan dikendalikan oleh potensiometer yang diprogram ke dalam Arduino Uno. Keluaran dari osiloskop dalam bentuk gelombang sinus sesuai dengan sudut penyalaan yang diatur. This research discusses the control of 3-phase motor control of a three-phase AC-AC converter. This phase control makes it easy to control alternating voltage. The AC output voltage is obtained by converting the AC voltage by changing the effective value/rms value of the AC voltage supplied to the load using a TRIAC thyristor type as a switch. By using an AC signal to change the output voltage at a fixed fundamental frequency, the output voltage of this AC converter is triggered by the firing angle of the triac. In this research, we designed a circuit with a three-phase AC output voltage of 0 to 220 VAC to control a soft starter using an AC-AC converter. The voltage setting is controlled by a potentiometer programmed into the Arduino Uno. The output from the oscilloscope is in the form of a sine wave according to the set ignition angle.
Optimal design of stator slot with semi-closed type to maximize magnetic flux connection and reduce iron leakage in high-speed spindle drives Purwanto, Wawan; Mulani, Firoj; krismadinata, Krismadinata; Maksum, Hasan; Arif, Ahmad; Putra, Dwi Sudarno; Padrigalan, Kathleen Ebora
Mechanical Engineering for Society and Industry Vol 4 No 1 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.10492

Abstract

A novel approach was devised to optimize the stator slot semi-closed type in order improve the magnetic flux connection and minimize iron leakage in high-speed spindle drives. The concept was executed through a combination of response surface approach including the technique of finite element analysis. The primary objective of this investigation would be to provide an engineering approach which improves the functionality of stator criteria, including the stator slot geometry, coil turn per slot, and wire size. The purpose is to achieve higher flux connection and minimize iron leakage. This study presents an enhanced analytical approach that incorporates the analysis of stator flux connection, finite element calculation of flux connection, and iron leakage analysis of stator variables. The results are analyzed through the utilization of finite element computation, and their accuracy is verified through experimental measurements. The findings suggest the ideal design yields increased magnetic flux connection and reduced iron leakage in comparison to the industrial layout. The precision provided by the suggested model is confirmed through the comparison of the simulation and experimental information. In general, the percentage of errors is estimated to be around 7%.
Rancang Bangun DC Chopper Empat Kuadran untuk Motor DC dengan Monitoring Simulink Matlab Anggrila, Bunga; Krismadinata; Astrid, Erita
MSI Transaction on Education Vol 5 No 4 (2024): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v5i4.153

Abstract

Pada awal abad ke-20, ilmu pengetahuan dan teknologi berkembang pesat, terutama dalam teknologi informasi dan otomatisasi produksi. Mesin industri mulai dikendalikan oleh sistem otomatisasi seperti PLC dan komputer. Salah satu implementasi teknologi otomatisasi ini adalah mesin listrik, khususnya mesin arus searah (DC). Salah satu mesin arus searah yang paling sering digunakan diindustri adalah motor arus searah (DC) karena kemampuannya menghasilkan torsi awal besar dan pengendalian putaran yang mudah. Namun, perubahan beban sering menyebabkan kecepatan motor tidak stabil, sehingga diperlukan pengaturan tegangan menggunakan konverter daya seperti DC chopper. DC chopper empat kuadran dipilih karena dapat mengatur kecepatan motor dalam dua arah dan melakukan pengereman. Lalu dpat dimonitoring melalui interface Simulink, yang memungkinkan pengoperasian tanpa saklar langsung dari laptop atau komputer. In the early 20th century, science and technology developed rapidly, especially in information technology and production automation. Industrial machinery began to be controlled by automation systems such as PLCs and computers. One of the implementations of this automation technology is electrical machinery, especially direct current (DC) machines, direct current (DC) motors have become popular in industry due to their ability to produce large starting torque and easy rotation control. However, load changes often cause unstable motor speed, so voltage regulation using a power converter such as a DC chopper is required. The four-quadrant DC chopper was chosen because it can adjust the motor speed in two directions and perform braking. It can then be monitored through a Simulink interface, which allows switchless operation directly from a laptop or computer.
Rancang Bangun Kendali Konverter Empat Kuadran untuk Motor DC dengan Interface GUI Matlab Fitri, Dahlia Hidul; Krismadinata; Padrigalan, Kathleen Ebora
MSI Transaction on Education Vol 5 No 3 (2024): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v5i3.154

Abstract

Motor listrik, khususnya motor DC, mempunyai peran penting dalam proses produksi industri untuk mencapai hasil optimal. Motor DC digunakan dalam berbagai aplikasi industri seperti conveyor, elevator, dan peralatan tekstil karena kemudahan pengaplikasian dan skala pengaturan kecepatan yang lebih lebar dibandingkan motor arus bolak-balik. Namun, penurunan kecepatan akibat beban sering menjadi masalah sehingga diperlukan sistem pengendalian, seperti kendali konverter empat kuadran (DC chopper), untuk mengatur arah putaran dan pengereman serta kecepatan motor DC. DC chopper mengubah tegangan DC menjadi tegangan DC variabel yang dapat dikendalikan, dan DC chopper empat kuadran memungkinkan kontrol tegangan motor DC pada empat daerah (positif atau negatif). Dalam penelitian ini, DC chopper digunakan untuk mengendalikan tegangan motor DC yang diintegrasikan dengan interface GUI Matlab untuk monitoring sistem. GUI Matlab dapat pengoperasian alat menggunakan komputer tanpa perlu mengaktifkan saklar manual, sehingga proyek ini dapat dijalankan dengan dua metode. Pada penelitian ini, pengujian sistem kendali konverter empat kuadran untuk motor DC dilakukan dengan interface GUI Matlab. Electric motors, especially DC motors, play an important role in industrial production processes to achieve optimal results. DC motors are used in various industrial applications such as conveyors, elevators, and textile equipment due to their ease of application and wider speed regulation scale compared to alternating current motors. However, speed degradation due to load is often a problem so a control system, such as a four-quadrant converter control (DC chopper), is needed to regulate the rotation and braking direction and speed of DC motors. A DC chopper converts a DC voltage into a controllable variable DC voltage, and a four-quadrant DC chopper allows control of the DC motor voltage in four regions (positive or negative). In this research, a DC chopper is used to control the DC motor voltage integrated with a Matlab GUI interface for system monitoring. The Matlab GUI allows operation of the device using a computer without the need to activate a manual switch, so this project can be run using two methods. In this research, testing of the four-quadrant converter control system for DC motors was conducted with the Matlab GUI interface.
Sistem Pengontrolan FAN DC dan Monitoring Tegangan serta Arus DC Menggunakan Bluetooth HC-05 Berbasis Mikrokontroler Bustarino, Dandi; Krismadinata
MSI Transaction on Education Vol 5 No 4 (2024): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v5i4.155

Abstract

Sistem kontrol telah menjadi elemen krusial dalam berbagai industri, termasuk pertanian, di mana mikrokontroller digunakan untuk otomatisasi dan peningkatan efisiensi. Kenyamanan lingkungan kerja, seperti temperatur dan kelembaban, memainkan peran penting dalam produktivitas seseorang. Lingkungan yang tidak ideal dapat menyebabkan kelelahan dini dan menurunkan efektivitas kerja. Penelitian ini menggunakan metode percobaan untuk merancang sistem kontrol berbasis mikrokontroler Arduino Uno. Sistem ini memonitor tegangan dan arus melalui sensor yang terhubung ke smartphone via Bluetooth HC-05, serta mengontrol FAN DC menggunakan timer pada aplikasi smartphone yang dibuat dengan MIT App Inventor. Desain ini menunjukkan bagaimana teknologi sederhana dapat meningkatkan kenyamanan dan produktivitas dalam berbagai lingkungan kerja. Control systems have become a crucial element in a variety of industries, including agriculture, where microcontrollers are used for automation and efficiency improvement. The comfort of the work environment, such as temperature and humidity, plays an important role in a person's productivity. An environment that is not ideal can lead to premature fatigue and reduce work effectiveness. This research uses an experimental method to design a control system based on the Arduino Uno microcontroller. The system monitors voltage and current through sensors connected to a smartphone via Bluetooth HC-05, and controls the DC FAN using a timer on a smartphone app created with MIT App Inventor. This design shows how simple technology can improve comfort and productivity in a variety of work environments.
Pengembangan Jobsheet Electric Motor Control Training KIT dengan Pendekatan Saintifik Sari, Widia; Krismadinata, Krismadinata
Jurnal Pendidikan Teknik Elektro Vol 5 No 2 (2024): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v5i2.496

Abstract

This research was carried out because, in the electric machine control practicum course, there was no valid, practical, and effective job sheet as a guide in using the electric motor control training KIT in the field of induction motor control studies. This research aims to develop a job sheet with a scientific approach where practitioners can actively achieve practice objectives through implementing 5M activities. The research method used is R&D research (research and development) using a 4D model consisting of define, design, develop, and disseminate stages. The subjects in this research were D3 students in electrical engineering, Faculty of Engineering, Padang State University. Based on the research result, validity value data was obtained from the three validator lecturers, each of whom stated that they were valid, so it can be concluded that the jobsheet developed was valid. The practicality test was carried out by a lecturer in the electrical engineering department and 9 students from D3 electrical engineering. The practicality questionnaire filled out by the lecturer in the subject concerned and students as respondents obtained very practical results. The effectiveness test was carried out by carrying out a practicum based on a scientific approach using the electric motor control training KIT in 3 meetings with different materials. From these three tests, it was stated that the resulting job sheet was valid, practical, and effective for use as a guide in using the electric motor control training KIT in the electrical machine control practicum course in the field of induction motor control studies.
Optimalisasi Keterampilan Praktis melalui Pendampingan dan Pelatihan Peralatan Teknologi Kejuruan: Kasus Studi MGMP Teknik Instalasi Tenaga Listrik dan MGMP Teknik Audio Video di Pesisir Selatan Krismadinata, Krismadinata; Lapisa, Remon; Yelfianhar, Ichwan; Asnil, Asnil; Mulya, Hasan Sayuti; Armaliany, Telvi
Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Vol 24, No 2 (2024): Suluah Bendang: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/sb.05840

Abstract

Seiring dengan meningkatnya kebutuhan akan energi terbarukan, pemahaman tentang teknologi PLTS menjadi sangat penting. Namun, banyak guru yang masih memiliki keterbatasan dalam hal kompetensi dan fasilitas pendukung. Kegiatan ini dilaksanakan bertujuan untuk meningkatkan pemahaman dan keterampilan guru dalam pengajaran energi baru terbarukan terkhusus Pembangkit Listrik Tenaga Surya melalui program pendampingan dan pelatihan di MGMP Teknik Instalasi Tenaga Listrik dan MGMP Teknik Audio Video di Pesisir Selatan. Kegiatan yang dilakukan meliputi pemaparan teori mengenai komponen Off Grid Solar Training Kit, diikuti dengan sesi praktik yang berfokus pada pengoperasian dan pemanfaatan alat. Trainer ini dapat dimanfaatkan sebagai media pembelajaran yang efektif bagi guru dan siswa dalam mendukung proses belajar mengajar dengan cara yang interaktif dan praktis
Evaluation of Field Work Practice Programs with Using Logic Model Juliwardi, Ilham; ., Sukardi; ., Krismadinata
Journal of Education Reseach and Evaluation Vol 3 No 3 (2019): August
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (513.263 KB) | DOI: 10.23887/jere.v3i3.21854

Abstract

This study aims to evaluate the Implementation of Field Work Practices of SMK Negeri 1 Padang. Evaluation of Field Work Practices is seen from the aspects of Input, Process, Output, Outcome faced in the implementation of street vendors. The research method used is a combination of Concurrent Embedded design methods, combining quantitative and qualitative research methods sequentially, where in the first stage the study uses quantitative methods and in the second stage qualitative methods. The results showed that the Implementation of Field Work Practices at SMK Negeri 1 Padang Electrical Engineering expertise program as a whole included. Input evaluation according to reality obtained an average standard score of 74.27% with the Fair category, and Input evaluation according to expectations obtained an average standard score of 89.58% with the Very Good category. Process Indicators according to reality obtained a percentage level of 74.14% with the category Fair. As for the Process indicator as expected, a percentage level of 88.56% was obtained with the Good category. Output indicators according to reality obtained a percentage level of 72.65% with the category Fair. As for the Output indicator as expected, a percentage level of 89.13% was obtained. with the category of Very Good. Outcome indicators according to reality obtained a percentage level of 72.36% with the category Fair. As for the Outcome indicator as expected, a percentage level of 88.41% was obtained with the Good category. Based on the findings of this study it was concluded that the Field Work Practices program for students in the SMK Negeri 1 Padang  were still in the Fair category, which needed to be improved for each aspect.
Co-Authors Abdullah, MT, Dr. Rijal Ahmad Arif Ahyanuardi Ahyanuardi Akbar, Junaidi Andesta Putri, Welly Andre Kurniawan Anggrila, Bunga Anhar, Nur Fajri Anwar Anwar Aprialdi Armaliany, Telvi Asnil Asnil Asnil Asnil Bustarino, Dandi Candra, Oriza David Nugraha Dhea fatma dilla Dochi Ramadhani Dori Yuvenda Dwi Sudarno Putra Dwiprima Elvanny Myori, Dwiprima Elvanny Erita Astrid Fahmi Rizal Fitrah Hidayat Fitri, Dahlia Hidul Fivia Eliza Ganefri Ganefri . Gunawan, Andriyan Gusni Sushanti Hambali Hambali Hamdani Hamdani Hasan Maksum Ilham Juliwardi Irma Husnaini Irwan Irwan Jlinus, Nizwardi Kasman Rukun Lativa Mursyida Lita Sari Muchlis Lubis, Arina Luthfini Mahesu Agni Zaus Mhd Safei Minangsih, Maya Muhammad Djoni Bustan Muhammad Nur, Khaliq Muhammad Triyo Rahmanto Mulani, Firoj Mulianti Mulya, Hasan Sayuti Nizwardi Jalinus Padrigalan, Kathleen Ebora Puja Kusuma Purwanto, Wawan Putra, Rusnardi Rahmat Refdinal Nazir Remon Lapisa Reza Muhardian Ricky Maulana Ridwan Riki Fajri Rahmat Rini Widyastuti Rizka Amalia Samira Laila Luthfiani Sari, Widia Sesrima Badri Sri Haryati Sri Rizki Putri Primandari Sukardi, Sukardi Syafrijon, Syafrijon Syahril Syahril Tarig Elshaarani Totoh Andayono Unung Verawardina Unung Verawardina, Unung Usmeldi Usmeldi Winda Lestari Siregar Wulan Juswita Sari Yahfizham Yahfizham Yahfizham Yahfizham Yahfizham Yahfizham yana, Liyana Fatrina Yandra, Muvi Yelfianhar, Ichwan Yezi Arnovia Yuliawati Yunus YUPELMI, MIMI Yus Donald Chaniago