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All Journal Jurnal Rekayasa Energi dan Mekanika Journal of Electronic and Electrical Power Application Applied Engineering, Innovation, and Technology
DARMAWAN, ISRA' NUUR
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Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Applied Engineering, Innovation, and Technology

 1 
Analysis of Duty Cycle, Inductance, and Capacitance Variations on Buck Converter Performance Using PSIM Software Darmawan, Isra' Nuur; Kholistianingsih, Kholistianingsih; Nugroho, Slamet Fajar Budhi; Johara, Nur
Applied Engineering, Innovation, and Technology Vol. 2 No. 2 (2025)
Publisher : MSD Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62777/aeit.v2i2.38

Abstract

This study investigates the influence of duty cycle, inductance, and capacitance variations on the performance of a buck converter through simulation using PSIM software. The research aims to quantify how these parameters affect output voltage and ripple, which are key factors in achieving efficient and stable DC–DC conversion for renewable energy applications. The converter was modeled with an input voltage of 48 V, an intended output voltage of 24 V, and a switching frequency of 20 kHz. Simulation results show that the output voltage increases linearly with the duty cycle. At a 50% duty cycle, the converter achieved an output voltage of 23.9 V, confirming accurate voltage regulation. Furthermore, ripple voltage was found to decrease significantly with higher inductance and capacitance values, reaching a minimum of 0.1 V when L is 750 μH and C is 1,250 μF. These results demonstrate that optimizing LC parameters can substantially improve voltage stability and filtering efficiency. The findings provide practical design guidance for high-efficiency buck converters used in renewable energy and power electronic applications.
Effect of Rotor Teeth Width Variations on Back EMF Constant of a 12-Slot 8-Pole Permanent Magnet Synchronous Generator: A Finite Element Analysis Darmawan, Isra' Nuur; Mudilulail, Sahid Aktob; Kholistianingsih, Kholistianingsih
Applied Engineering, Innovation, and Technology Vol. 1 No. 1 (2024)
Publisher : MSD Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62777/aeit.v1i1.10

Abstract

Permanent Magnet Synchronous Generators (PMSGs) are widely used for converting mechanical energy into electrical energy through electromagnetic induction. Unlike conventional generators, PMSGs utilise permanent magnets to generate the excitation field, eliminating the need for external excitation coils. This study investigates the effects of rotor teeth width variations on the performance characteristics of a 12-slot, 8-pole PMSG using Finite Element Method (FEM) simulations. Specifically, the influence of rotor teeth width on flux density and back electromotive force (EMF) constant are explored. Three different rotor teeth widths, 5 mm, 7.5 mm, and 10 mm, are considered, and their impact on the generator's performance is evaluated. The FEM simulations reveal that increasing the rotor teeth width leads to a significant increase in the back-EMF constant values. The smallest back-EMF of 12.057 V and the lowest constant are observed for the 5 mm rotor teeth width, while the largest back-EMF of 20.774 V and the highest constant correspond to the 10 mm rotor teeth width. These findings highlight the importance of optimising rotor teeth geometry in PMSGs to achieve desired performance characteristics.
Effect of Magnet Thickness and Width Variation on Back EMF of 18-Slot 16-Pole Permanent Magnet Synchronous Generator Darmawan, Isra' Nuur; Abidin, Asroful; Ramadhan, Muhammad Afif Makruf; Rizki, Achmad
Applied Engineering, Innovation, and Technology Vol. 1 No. 1 (2024)
Publisher : MSD Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62777/aeit.v1i1.11

Abstract

Permanent magnet synchronous generators (PMSG) converts mechanical energy into electrical energy through electromagnetic induction, with the excitation field generated by permanent magnets instead of coils. This paper investigates the effects of varying magnet thickness and width on the back electromotive force (back EMF) of an 18-slot 16-pole PMSG using finite element method (FEM) simulations. The aim is to understand how these geometric parameters influence the back EMF values, which are crucial for generator design and performance evaluation. The FEM modelling results show that a 5 mm magnet thickness yields the highest back EMF value of 130.47 V, while a 15 mm magnet width produces a back EMF of 100.65 V. Additionally, the back EMF constant (KE) is maximized at 0.79 V·s/rad for a 5 mm magnet thickness and 0.55 V·s/rad for a 15 mm magnet width. These findings provide insights into optimising magnet dimensions for improving the efficiency and output characteristics of PMSGs in various applications.
Co-Authors Afif Safarli, Rizki Asroful Abidin Ayu Margiyanti, Niken Dwi Dody Wahjudi Johara, Nur Kholistianingsih Kholistianingsih Kholistianingsih Mauludin Sodik, Muhammad Mudilulail, Sahid Aktob Nugroho, Slamet Fajar Budhi Pangestu, Ilham Panorama Filardi, Ananda Ramadhan, Muhammad Afif Makruf Rifadila Fahmi, Ananda Rizki, Achmad Septia Nugroho, Rudi Sudaryanto, Eko Tri Watiningsih, Tri