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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Advances in Applied Sciences Jurnal Jurusan Pendidikan Teknik Elektro Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Sains dan Teknologi Jurnal EECCIS JURNAL NASIONAL TEKNIK ELEKTRO WIDYA LAKSANA Jurnal Pendidikan Teknik Mesin Undiksha KOMTEKS: Komputer dan Teknologi Sains
M.T. S.T. I Wayan Sutaya .
Universitas Pendidikan Ganesha
Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Other

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Modeling and analysis of batteryless off-grid photovoltaic with adaptive multi-motor I Wayan Sutaya; Ida Ayu Dwi Giriantari; Wayan Gede Ariastina; I Nyoman Satya Kumara
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 17, No 1: March 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v17.i1.pp267-281

Abstract

This paper presents a model of a batteryless off-grid photovoltaic (PV) system with an adaptive multi-motor load. This model is developed as an effort to enhance the power output of batteryless off-grid PV systems for motor loads. Instead of using a single large-capacity motor, as commonly done in previous studies, the model distributes the load into several smaller motors and controls them adaptively. This approach allows for better control of the total load impedance to support maximum power point (MPP) tracking. A case study involving three three-phase induction motors, each with an operating power of 200 W, is conducted, where the power production of the proposed model is analysed by comparing it with the theoretical MPP and a fixed-load motor system that represents a single large motor. Under 1000 W/m² irradiance and using an 852 Wp PV array, the proposed model achieves a power output of 842 W, which corresponds to 98.83% of the MPP. In contrast, the system without this model only generates 298 W, or just 35.02% of the MPP. The testing process spans a 5-second period during the motor starting state. The power production analysis of the proposed model is presented in graphical form using MATLAB/Simulink.
Prototipe Sistem Deteksi Polusi Udara Perkotaan Berbasis IoT Menggunakan ESP32 dan Layar P5 Putu Mulyadi Artawan; Made Santo Gitakarma; I Wayan Sutaya
Jurnal Pendidikan Teknik Elektro Undiksha Vol. 14 No. 3 (2025): JPTE Periode Desember 2025
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpte.v14i3.112921

Abstract

Polusi udara perkotaan merupakan permasalahan lingkungan yang berdampak langsung terhadap kesehatan masyarakat sehingga diperlukan sistem pemantauan kualitas udara yang informatif dan mudah diakses. Penelitian ini bertujuan mengembangkan prototipe sistem deteksi polusi udara berbasis Internet of Things (IoT) menggunakan mikrokontroler ESP32 dengan tampilan panel LED P5. Sistem mengintegrasikan sensor MQ-135 untuk mendeteksi gas pencemar, sensor PMS5003 untuk mengukur partikel PM1.0, PM2.5, dan PM10, serta sensor DHT22 untuk memantau suhu dan kelembapan udara. Data ditampilkan secara real-time pada LED P5 dan dimonitor melalui aplikasi Blynk IoT. Pengujian sistem dilakukan di wilayah Kota Singaraja pada siang, sore, dan malam menunjukkan konsentrasi gas 637–880 ppm, suhu 28,7–31,0 °C, dan kelembapan 75–80%. Konsentrasi PM2.5 mencapai 28 µg/m³ dan PM10 15 µg/m³. Berdasarkan analisis Indeks Standar Pencemar Udara (ISPU), kualitas udara tergolong baik hingga sedang. Evaluasi menunjukkan RMSE sebesar 1,8 °C, 3%, dan 2 µg/m³, dengan validitas sekitar 90%.
Desain dan Implementasi Inverter Satu Fasa Berbasis SPWM Menggunakan Op-Amp untuk Aplikasi Perahu Nelayan Tradisional Kadek Agus Rediawan; I Gede Nurhayata; I Wayan Sutaya
Jurnal Pendidikan Teknik Elektro Undiksha Vol. 14 No. 3 (2025): JPTE Periode Desember 2025
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpte.v14i3.113121

Abstract

Penelitian ini bertujuan untuk merancang dan mengimplementasikan inverter satu fasa berbasis Sinusoidal Pulse Width Modulation (SPWM) menggunakan operational amplifier (op-amp) untuk aplikasi pada perahu nelayan tradisional. Sistem dilengkapi dengan rangkaian DC–DC converter sebagai penyesuai tegangan dari baterai. Pengujian dilakukan menggunakan variasi beban resistif hingga 260 W untuk menganalisis karakteristik keluaran. Hasil pengujian menunjukkan bahwa inverter menghasilkan tegangan AC sebesar 198–220 V dengan frekuensi rata-rata 49,6–50,2 Hz. Tegangan keluaran mengalami penurunan sekitar ±10,9% pada beban maksimum akibat rugi-rugi daya, dengan efisiensi berada pada kisaran 72–85%. Bentuk gelombang keluaran masih berupa pulsa SPWM dengan amplop sinusoidal karena belum menggunakan filter keluaran. Inverter dapat beroperasi sesuai prinsip perancangan, meskipun terdapat keterbatasan pada regulasi tegangan dan kualitas gelombang. Pengembangan lebih lanjut diperlukan melalui penambahan filter dan sistem kontrol tertutup.
Modifikasi Rewinding Motor Induksi Satu Fasa Menjadi Tiga Fasa untuk Meningkatkan Efisiensi Daya Lisrik I Gusti Bagus Alit Sudarma Putra; I Wayan Sutaya; Gede Indrawan
Jurnal Pendidikan Teknik Elektro Undiksha Vol. 14 No. 3 (2025): JPTE Periode Desember 2025
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpte.v14i3.113293

Abstract

Induction motors are widely used as electric drives, although single-phase induction motors still have limitations in torque and efficiency. This study analyzes the performance of a single-phase induction motor and compares it with a rewound three-phase induction motor through laboratory testing. The research was conducted by applying various loading conditions and measuring rotational speed, force, current, input power, and output power. Torque was obtained from the measured force and moment arm, while efficiency was calculated based on the ratio of output power to input power. The results show that single-phase induction motor produced 1204.5W input power, 62.27% efficiency, and 5.796 Nm torque at 1410 rpm. In comparison, the three-phase induction motor generated torque up to 5.688 Nm at 1442 rpm, maximum output power of 780 W with 1070 W input power, and 70% efficiency. Overall, the three-phase induction motor demonstrates superior performance and better energy efficiency than the single-phase motor.
Co-Authors Adi Ambara Sanuaka Adnya, Ida Made Wisnu Asprilla, Kajeng Sudirja D.G.H. Divayana Dwi Giriantari , Ida Ayu Gede Indrawan Gede Sugiartawan Bayu Permana Gede Widayana I Gede Nurhayata I Gede Nurhayata I Gusti Bagus Alit Sudarma Putra I Made Agus Oka Gunawan I N Satya Kumara Ida Ayu Dwi Giriantari Ida Made Wisnu Adnya Ida Nyoman Parahita K. U. Ariawan kadek aditya pradipta Kadek Agus Rediawan Kajeng Sudirja Asprilla Ketut Surawan Ketut Udy Ariawan Ketut Udy Ariawan Komang Suhartono Luh Joni Erawati Dewi Made Santo Gitakarma Made Wira Purnawan Nyoman Santiyadnya Parahita, Ida Nyoman Permana, Gede Sugiartawan Bayu pradipta, kadek aditya Purnawan, Made Wira Putu Mulyadi Artawan Rafsandita, I Gusti Lanang Yoga Sanuaka, Adi Ambara Sariyasa . Satia, I Nyoman Ari Suhartono, Komang Surawan, Ketut Wayan Gede Ariastina Wayan Gede Ariastina Wendryanto, Wendryanto Yundari, Yundari