Salam Waley Shneen
University of Technology–Iraq

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Review-Simulation Model of Power Electronic Converters by Using MATLAB Salam Waley Shneen; Suaad Makki Jiaad
Buletin Ilmiah Sarjana Teknik Elektro Vol. 8 No. 3 (2026): June
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v8i3.14047

Abstract

Power electronics is known as one of the most important branches of electrical science or electrical engineering, focusing on the design of electronic circuits for control and conversion applications of electrical quantities between the input and output of electronic converters. Power electronics is linked to control (control systems) on the one hand and conversion (electrical energy conversion) on the other. Semiconductors (diodes, transistors, and thyristors) are used in power electronics construction. Industrial applications are one of the most important uses of power electronics. The use of power electronics in many fields provides improved energy use with a high level of efficiency, such as in renewable energies (such as solar panels and wind turbines), as well as electric vehicles and related industrial applications. Converters are named according to their function. Rectifiers convert alternating current (AC) to direct current (DC) in either single-phase or three-phase. Converters are constructed using semiconductors, including diodes, transistors, and thyristors. The number of electronic switches varies depending on the type of converter and is determined by the type of power source and the type of load connected to the converter's output. Another type of converter, called an inverter, works in the opposite direction to a rectifier, converting DC to alternating current in either single-phase or three-phase. To further understand converters, this review presents a literature review of power converters according to research contributions. The first research contribution includes an overview of the power electronics overview. The second research contribution identifies converter types, and the third identifies their applications. To further enhance knowledge, we use theoretical mathematical representations of these types of power converters and select simulation models using MATLAB to analyze their behavior through simulation results. Based on the results, appropriate conclusions can be drawn and contributions can be identified for future work.
Investigation of Manufacture Tolerances on Torque Pulsation Profile of Interior Permanent Magnet Motor with Third Harmonic Injected Sinusoidal Rotor Iron Pole Ahlam Luaibi Shuraiji; Kassim Rasheed Hameed; Salam Waley Shneen
Buletin Ilmiah Sarjana Teknik Elektro Vol. 8 No. 1 (2026): February
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v8i1.14647

Abstract

Torque ripple is a significant undesirable aspect of permanent magnet (PM) machine. It is mainly contributed by cogging torque, which is inherit feature of the PM machine. Interior permanent magnet (IPM) motor with a sinusoidal + third-order harmonic injected rotor pole shape has been introduced as one of the most efficient rotor pole arc iron shape techniques to minimize the cogging torque. Such method showed a reduction in the cogging torque compared to the traditional designs. Generally, imperfections in the manufacturing process can exacerbate cogging torque and, by extension, torque ripple. This research assesses how manufacturing tolerances influence the torque ripple of the IPM motor having sinusoidal + third order harmonic rotor pole shape. The investigation has been carried out using two-dimension finite element analysis(2D-FEA) method, ANSOFT MAXWELL program. Different models of the IPMs with sinusoidal + third order harmonic rotor pole shape have been made to simulate healthy, eccentricity and PM diversity cases. According to the simulation results, it has been found that PM diversity leads to introduce additional harmonics in the cogging torque waveforms, i.e., in addition to the fundamental harmonic, which is the 60th harmonic orders, the 12th harmonic and its multiples harmonic orders were presented, consequently resulting in increasing the torque ripple. Moreover, the obtained results have shown that the static eccentricity has more negative effect on the torque ripple compared to the dynamic counterpart, i.e. the torque ripple of the static eccentricity is about 20% higher than that of the dynamic counterpart.