Samir Ahmad Mussa
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View article: Cryogenic DC-DC Boost Converter Employing Superconducting Inductor
Cryogenic DC-DC Boost Converter Employing Superconducting Inductor Open
Cryogenic power electronics applications, commonly referred to as cryo-converters, offer key advantages over conventional ambient-temperature systems, including higher power density and improved efficiency. This paper presents the experime…
View article: Experimental Investigation of an Algorithmic Approach for Optimizing DAB Converter Design
Experimental Investigation of an Algorithmic Approach for Optimizing DAB Converter Design Open
This study endeavors to optimize a dual active bridge (DAB) converter for seamless integration into an electric vehicle's on-board charger (OBC). The optimization process employs an algorithm to ascertain the optimal construction parameter…
View article: High Static Gain DC–DC Double Boost Quadratic Converter
High Static Gain DC–DC Double Boost Quadratic Converter Open
This paper presents a study of a new topology of a DC–DC converter titled double quadratic boost non-isolated. This converter has high static gain and proposes to reduce the voltage stress on the switches, where the maximum voltage value a…
View article: Modelagem e Controle em Eixo Síncrono do Retificador Vienna Hexafásico
Modelagem e Controle em Eixo Síncrono do Retificador Vienna Hexafásico Open
Sistemas polifásicos apresentam benefícios comparados aos sistemas trifásicos tradicionais, como, por exemplo, as máquinas polifásicas possuem maior torque, menor pulsação de torque e maior robustez contra falhas, pois na falta de uma das …
View article: High static gain DC-DC Double Boost Quadratic Converter
High static gain DC-DC Double Boost Quadratic Converter Open
This paper presents a comprehensive study and the analysis of a topology of a no isolated DC-DC intituled Double Quadratic Boost converter with high static gain. This converter has the main advantage of high static gain and low voltage str…
View article: AC–AC Modular Multilevel Converter—Hexverter
AC–AC Modular Multilevel Converter—Hexverter Open
This article proposes the study, control and analysis of the topology of an AC–AC modular multilevel converter, known in the literature as the Hexverter. The Hexverter is capable of converting the energy between two AC systems with a reduc…
View article: Análise Estática e Dinâmica do Conversor CC-CC Duplo-Buck Quadrático
Análise Estática e Dinâmica do Conversor CC-CC Duplo-Buck Quadrático Open
Neste artigo será apresentado o conversor não-isolado CC-CC duplo buck quadrático. Esta topologia possui as vantagens de robustez, confiabilidade e alta taxa de conversão estática, além da redução dos esforços de tensão nos interruptores p…
View article: Asymmetrical Multilevel Hybrid Inverter - Analysis and Experimentation
Asymmetrical Multilevel Hybrid Inverter - Analysis and Experimentation Open
This paper describes a voltage-fed asymmetrical hybrid inverter based on a symmetrical hybrid multilevel DC-AC converter for high voltage/high power applications. The proposed inverter is controlled by two types of modulationpatterns: low …
View article: Retificador PFC Monofásico Bridgeless Baseado em Interruptores GaN HEMT Empregando Estratégia de Modulação Pwm de Alta Resolução Implementada em FPGA
Retificador PFC Monofásico Bridgeless Baseado em Interruptores GaN HEMT Empregando Estratégia de Modulação Pwm de Alta Resolução Implementada em FPGA Open
Interruptores de potência baseados em materiais do tipo wide bandgap propiciam o uso de elevada frequência de comutação sem aumento significativo das perdas do conversor. O artigo propõe a validação experimental de um retificador boost bri…
View article: High‐resolution FPGA‐pulse width modulation applied to PFC 2 MHz converter using eGaN field effect transistor
High‐resolution FPGA‐pulse width modulation applied to PFC 2 MHz converter using eGaN field effect transistor Open
This study proposes an implementation based on a low‐cost field‐programmable gate array (FPGA) of a high‐resolution pulse width modulation applied on a single‐phase power factor correction (PFC) converter operating with 2 MHz switch freque…
View article: GaN‐based single‐phase bridgeless PFC boost rectifier
GaN‐based single‐phase bridgeless PFC boost rectifier Open
A single‐phase GaN‐based bridgeless PFC Boost converter design is proposed regarding multi‐domain optimisation concepts. A design guideline describing elements losses are presented concerning the selected power converter topology. Experime…
View article: FPGA-Based Space Vector Modulation of an Indirect Matrix Converter
FPGA-Based Space Vector Modulation of an Indirect Matrix Converter Open
The insertion of powers sources onto the grid require an energy processing stage between generator and electrical grid, which adapts amplitude and frequency levels for alternating current (AC) quantities. The Indirect Matrix Converter is a…
View article: Six-Phase Bidirectional Rectifier: Modelling, Control and Experimental Results in αβ Reference Frame
Six-Phase Bidirectional Rectifier: Modelling, Control and Experimental Results in αβ Reference Frame Open
Poly-phase machines have been used for many years in motor drives and more recently in wind power generation. In wind generation the most common poly-phase system is the six-phase, which consists of a dual three-phase system, shifted by 30…
View article: Control System for Multi-Inverter Parallel Operation in Uninterruptible Power Systems
Control System for Multi-Inverter Parallel Operation in Uninterruptible Power Systems Open
This paper proposes a network communication system applied in a control strategy for parallel-connected multi-inverters, which is based on a distributed control system and a redundant communication system. The control system is produced by…
View article: Large-Signal Models of the Park Transformation and Phase-Locked Loop Algorithms
Large-Signal Models of the Park Transformation and Phase-Locked Loop Algorithms Open
The control of modern grid-connected converters often relies on Park Transform and synchronization algorithms. These are highly nonlinear subsystems integrated into even larger systems that include other nonlinearities. Thus, strictly spea…
View article: Estratégia de Paralelismo Baseado no Conceito de Impedância Virtual para Inversores Trifásicos a Quatro Fios
Estratégia de Paralelismo Baseado no Conceito de Impedância Virtual para Inversores Trifásicos a Quatro Fios Open
O artigo propõe uma estratégia para a conexão em paralelo de inversores trifásicos, a qual pode ser aplicada em sistemas baseados em fontes de alimentação ininterrupta (conhecidas como UPS – Uninterruptible Power Supply). A estratégia de c…