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All Journal Jurnal Sains Teknologi dan Lingkungan (JSTL) Journal of Computer Science and Informatics Engineering (J-Cosine) Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro Jurnal Abdi Insani International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Jurnal Pepadu Journal of Electrical Engineering
Ida Bagus Fery Citarsa
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Religion Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences

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PENYULUHAN PEMANFAATAN CATU DAYA LISTRIK MANDIRI DI DESA GILI GEDE INDAH KABUPATEN LOMBOK BARAT Ida Bagus Fery Citarsa; I Nyoman Wahyu Satiawan; Supriono; Cipta Ramadhani
Jurnal Abdi Insani Vol 7 No 1 (2020): Jurnal Abdi Insani Universitas Mataram
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v7i1.299

Abstract

Salah satu daerah di Kabupaten Lombok Barat yang belum teraliri listrik dari PLN adalah Pulau Gili Gede. Masyarakat di sana masih menghadapi beberapa kendala dalam penyediaan kebutuhan primer, seperti ketersediaan air bersih, keterbatasan tenaga listrik dan masalah telekomunikasi. Saat ini untuk ketersediaan kebutuhan tenaga listrik dipenuhi dengan mengandalkan genset dengan kapasitas sangat terbatas yang dibiayai dari iuran warga. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengatasi persoalan yang dihadapi oleh masyarakat di Desa Gili Gede Indah, berkaitan dengan masalah ketersediaan tenaga listrik, diusulkan pembuatan suatu catu daya listrik mandiri. Hal ini dilakukan dengan metode penyuluhan mengenai prinsip kerja dan penggunaan catu daya listrik mandiri kepada masyarakat di Desa Gili Gede Indah. Pada waktu yang telah disepakati, tim pelaksana yang beranggotakan staf pengajar Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram telah melaksanakan kegiatan pengabdian kepada masyarakat di Desa Gili Gede Indah dengan memberikan penyuluhan cara penggunaan sekaligus serah terima catu daya mandiri bertenaga batere sehingga mitra pelaksana dapat memahami prinsip kerja dan cara penggunaan kedua macam peralatan tersebut di atas dengan baik. Dengan menggunakan catu daya mandiri bertenaga batere ini dapat menunjang kegiatan masyarakat yang membutuhkan layanan tenaga listrik sehingga dapat meningkatkan kinerja dan produktivitas mereka.
Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage Satiawan, I Nyoman Wahyu; Ida Bagus Fery Citarsa; Warindi; I Ketut Wiryajati; Supriono; Ni Made Seniari; I Made Budi Suksmadana
International Journal of Electrical, Energy and Power System Engineering Vol. 5 No. 3 (2022): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.5.3.93-98

Abstract

This paper investigates PWM method for the dual-inverter fed open end winding three-phase induction motor drives. This is aimed to improve the quality of the output voltage as well as to enhance the motor performance by solving the drawback of the PWM method. The proposed PWM method operates two inverters in different technique, i.e one inverter operates in square wave mode (slow switching) and one inverter in PWM mode (fast switching). Although the PWM method can improve the quality of the inverter output voltage over the two-level inverter output, the proposed PWM method causes an excessive ripple in both torque and stator current especially at the transient period. The drawback is solved by applying a new switching strategy that manage the inverter switches operate in turn between slow switching and fast switching in one circle of operation. The proposed method is verified via simulation. The result shows that the quality of output voltages improves for all modulation indices in comparison with two-level inverter. Furthermore, torque ripple is reduced, and current ripple are improved as the current waveform is enhanced to be more symmetrical.
Metoda Kombinasi Modulasi Pergeseran Tingkat Lebar Pulsa dengan Variabel Frekuensi Pembawa Pada Inverter Model Jembatan: Combination Method Of Level Shift Pulse Width Modulation With Carrier Frequency Variables On A Bridge Model Inverter Wiryajati, I Ketut; I Nyoman Wahyu Satiawan; Ida Bagus Fery Citarsa; I Made Budi Suksmadana; Supriono
Journal of Computer Science and Informatics Engineering (J-Cosine) Vol 8 No 1 (2024): Juni 2024
Publisher : Informatics Engineering Dept., Faculty of Engineering, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jcosine.v8i1.595

Abstract

Switching is very important in energy conversion systems. The conversion process requires a good and reliable method. This research identifies methods or techniques for pulse width modulation. This technique proposes a new model of modulation technique, namely by combining level shifted modulation techniques, and adjusting the frequency in such a way that it produces a signal that suits the inverter's needs. The inverter tested in this research is an inverter with a bridge model configuration. The proposed research and methods were verified using MATLAB and Simulink software. The results obtained are the ratio of total harmonic distortion (THD) are 25.07%, 76, 66% and 9.183%, respectively
PENINGKATAN KETERAMPILAN INSTALASI PERANGKAT KERAS KOMPUTER SEBAGAI SARANA PENINGKATAN KOMPETENSI SISWA SMK MAGANG I Ketut Wiryajati; I Nyoman Wahyu Satiawan; Ida Bagus Fery Citarsa; Made Budi Suksmadana; Supriono; I Ketut Perdana Putra; Ida Ayu Sri Adnyani
Jurnal Pepadu Vol 5 No 3 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i3.5969

Abstract

In the rapidly developing digital era, technical skills in information and communication technology are very important for Vocational High School (SMK) students, especially those who are doing internships. Mastery of computer hardware, such as installation and maintenance, is a vital skill to compete in the world of work. Intensive training in computer hardware installation during internships aims to improve the competence of vocational high school students, making them better prepared to face industry demands.The training methods used include planning based on needs analysis, orientation, balanced implementation between theory and practice, and continuous evaluation. This training succeeded in improving students' practical and theoretical skills, with 85% of participants being able to complete installation tasks well. In addition, the average student score in the theory exam increased from 60% to 85%. As many as 80% of participants obtained competency certificates, which increased their competitiveness in the job market.In conclusion, this training is effective in improving the technical competence of vocational high school students in computer hardware installation, making them better prepared to enter the world of work.
Quadratic Polynomial-Based APSD PWM Technique for Dual Three-Phase Inverters Wiryajati, I Ketut; Wahyu Satiawan; I Made Budi Suksmadana; Ida Bagus Fery Citarsa; Supriono
Journal of Electrical Engineering Vol. 1 No. 4 (2025): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jte.v1i4.3957

Abstract

Three-phase inverters are widely used in industrial applications, including motor drives, renewable energy systems, and electric vehicles. One significant issue in these systems is harmonic distortion, which lowers power efficiency and degrades output voltage quality. To address this, the study proposes a quadratic polynomial fitting technique to optimize Pulse Width Modulation (PWM) signals, aiming to reduce harmonics and improve power quality. This research focuses on a dual three-phase inverter configuration, which provides better current distribution, reduced power losses, and increased resilience to electrical disturbances. The use of quadratic polynomial fitting allows for more precise PWM waveform generation, resulting in lower Total Harmonic Distortion (THDi). The methodology involves mathematical modeling, simulation using MATLAB/Simulink, and experimental validation with a prototype inverter. Results indicate that the technique significantly reduces THDi, especially at optimal modulation indices. Additionally, implementing an LC filter further improves harmonic suppression, producing a cleaner and more stable output. This approach enhances power conversion performance and is highly suitable for industrial and renewable energy applications where efficiency and power quality are critical
PENINGKATAN KETERAMPILAN INSTALASI PERANGKAT KERAS KOMPUTER SEBAGAI SARANA PENINGKATAN KOMPETENSI SISWA SMK MAGANG I Ketut Wiryajati; I Nyoman Wahyu Satiawan; Ida Bagus Fery Citarsa; Made Budi Suksmadana; Supriono; I Ketut Perdana Putra; Ida Ayu Sri Adnyani
Jurnal Pepadu Vol 5 No 3 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i3.5969

Abstract

In the rapidly developing digital era, technical skills in information and communication technology are very important for Vocational High School (SMK) students, especially those who are doing internships. Mastery of computer hardware, such as installation and maintenance, is a vital skill to compete in the world of work. Intensive training in computer hardware installation during internships aims to improve the competence of vocational high school students, making them better prepared to face industry demands.The training methods used include planning based on needs analysis, orientation, balanced implementation between theory and practice, and continuous evaluation. This training succeeded in improving students' practical and theoretical skills, with 85% of participants being able to complete installation tasks well. In addition, the average student score in the theory exam increased from 60% to 85%. As many as 80% of participants obtained competency certificates, which increased their competitiveness in the job market.In conclusion, this training is effective in improving the technical competence of vocational high school students in computer hardware installation, making them better prepared to enter the world of work.
Pengaruh Kombinasi Jumlah Slot Stator - Kutub Magnet Rotor pada Unjuk Kerja Motor BLDC nyoman wahyu satiawan; Ida Bagus Fery Citarsa; I Made Budi Suksmadana; I Ketut Wiryajati
DIELEKTRIKA Vol 13 No 1` (2026): DIELEKTRKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v13i1`.451

Abstract

Pemilihan jumlah slot stator dan jumlah kutub magnet rotor adalah hal yang sangat penting dalam perancangan sebuah motor BLDC karena kedua parameter tersebut secara langsung mempengaruhi performansi elektromagnetik, karakteristik torsi dan efesiensi. Kombinasi slot-kutub yang tidak sesuai dapat memicu peningkatan riak torsi (torgue ripple), coging torsi (cogging torque), rugi-rugi inti maupun rugi-rugi tembaga dan pada akhirnya dapat menurunkan performa dari motor. Paper ini menyelidiki pengaruh jumlah slot dan kutub terhadap unjuk kerja motor BLDC. Penyelidikan dilakukan dengan memodelkan motor BLDC dengan diameter luar stator, lebar airgap dan material magnet yang identik dengan beberapa kombinasi slot-kutub yakni 18/4, 18/8, 18/12 dan 24/22. Hasil investigasi mengkonfirmasi bahwa pertambahan jumlah kutub dari 4, 8 dan 12 pada jumlah slot tetap (18) meningkatkan magnitude, ripple dan coging torsi. Hasil ekperimen juga menemukan bahwa kombinasi slot-kutub (24/22) merupakan kombinasi terbaik dimana ripple torsi dan coging torsi menjadi sangat kecil dan halus. Semantara itu pengaruh kombinasi slot-kutub terhadap rugi-rugi memperlihatkan bahwa pertambahan jumlah kutub meningkatkan rugi-rugi besi dan rugi tembaga karena ketika kutub bertambah maka kecepatan motor akan menurun. Jika kecepatan sinkron menurun (untuk daya yang sama), maka arus akan meningkat sehingga rugi tembaga bisa meningkat pada motor dalam kondisi low-speed high-torque.
SOSIALISASI ENERGI TERBARUKAN KEPADA KELOMPOK TANI DI DUSUN BUANI, DESA BENTEK, KECAMATAN GANGGA, KABUPATEN LOMBOK UTARA Ida Bagus Fery Citarsa; I Ketut Wiryajati; I Nyoman Wahyu Satiawan; I Made Budi Suksmadana; Supriono Supriono; Made Sutha Yadnya; Ida Ayu Sri Adnyani
Jurnal Pepadu Vol 7 No 1 (2026): Jurnal Pepadu
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v6i3.7860

Abstract

Three key elements are needed to utilize renewable energy within a community: technological readiness, human resource readiness, and data on local energy potential. Human resource readiness can be measured based on the community's knowledge of renewable energy. Similarly, farmer groups, as part of the human resource that requires energy for their activities, both at home and in the workplace, need to prepare themselves with knowledge about renewable energy utilization to meet future needs. ‘Remaja Tani Serba Guna Buani’, one of the farmers group in Buani Hamlet, also needs assistance in preparing itself for renewable energy utilization. This is due to the lower-middle educational background of its members and the lack of sosialization to them. Therefore, sosialization on renewable energy is necessary to help them understand the various types of renewable energy and the potential for renewable energy in their area to support sustainable energy conservation. This activity was carried out in three stages: preparation, implementation, and evaluation. The evaluation revealed that 73.69% of participants answered the questions with a score of "fair to excellent," while 26.31% of participants answered the questions with a score of "very poor to poor." This indicates that the sosialization activities provided understanding to the majority of the farmer group members.
Co-Authors Adriansyah Ekosaputro Aris Widyatmoko Cipta Ramadhani Eka Meilia Suryanti I Ketut Perdana Putra I Ketut Wiryajat I Ketut Wiryajati I Made Ari Nrartha I Made Budi Sukmadana I Made Budi Suksmadana I Made Budi Suksmadana I Nyoman Wahyu Satiawan I Nyoman Wahyu Satiawan I Nyoman Wahyu Satiawan I Nyoman Wahyu Satiawan Wahyu Satiawan Ida Ayu Sri Adnyani Made Budi Suksmadana Made Sutha Yadnya Ni Made Seniari nyoman wahyu satiawan Paniran Paniran Rosmaliati, Rosmaliati Sahdan Ashari Supriono Supriono Supriono Supriono Supriono Supriono Wahyu Satiawan Warindi Warindi D