Results 91 to 100 of about 148,390 (182)

Analysis and Implementation of the MNRV DPWM Methods Applied to Single-Phase Diode-Clamped Four-Level PWM Inverter

IEEE Access
This paper introduces the multi-neighboring reference vector discontinuous pulse-width modulation (MNRV DPWM) with offset voltage injection methodology tailored for single-phase diode-clamped four-level PWM inverters.
Min-Sup Song
doaj   +1 more source

Modified T-Type Three-Level Isolated PWM Half-Bridge DC-DC Converter With Wide ZVS Operating Range

IEEE Open Journal of Power Electronics
This article proposes a three-level isolated soft-switching DC-DC converter based on a modified T-type commutation cell. While wide-range zero-voltage switching (ZVS) in three-level converters is often achieved using auxiliary circuits or additional ...
Matheus Tauffer de Paula, Henrique Klesse Pasianotto, Roger Gules, Eloi Agostini   +3 more
doaj   +1 more source

PWM with Non-Triangular Discontinuous Carriers for Modular Multilevel Converters

International audienceThis paper introduces a PWM with phase-shifted non-triangular discontinuous carriers, suitable for low-voltage modular multilevel converters. It aims to reduce the harmonic distortion of the AC current and increase its RMS value.
Reymond-Laurina, Frédéric, Quéval, Loïc, Henn, Gustavo, Alves de Lima, Voldoire, Adrien   +3 more
core   +1 more source

Simplified Carrier-Based SVDPWM Methods Using Reduced Common Mode Voltage Vector Redundancy for Improving Output Current Ripple in Four-Level NPC Inverter

IEEE Access
In this article, new fast and Three-level reduced common-mode voltage (RCMV) space vector Discontinuous pulse width modulation (SVDPWM) strategies are proposed to achieve high performance in four-level neutral point clamped (4L-NPC) inverters.
Le Nam Pham, Quoc Dung Phan, Nho-van Nguyen   +2 more
doaj   +1 more source

Continuous and Discontinuous PWM Methods for Symmetrical Six-Phase Induction Motor with Single Isolated Neutral

, 2020
Among different types of six-phase machines, extensive works have been done on pulse-width modulation (PWM) methods for asymmetrical six-phase machine and symmetrical six-phase machine with 2-isolated neutral connection.
Tousizadeh, Mahdi, Che, Hang Seng, Shihab, Baten Md   +2 more
core  

On Discontinuous Galerkin Methods for Singularly Perturbed and Incompressible Miscible Displacement Problems [PDF]

, 2012
This thesis is concerned with the numerical approximation of problems of fluid flow, in particular the stationary advection diffusion reaction equations and the time dependent, coupled equations of incompressible miscible displacement in a porous medium.
CHAPMAN, JOHN,ROBERT, Chapman, John Robert   +1 more
core  

Hybrid DMS-ZVS-PWM With In-Depth Mathematical Model for Boosting Efficiency of Grid-Connected SEPIC Differential Mode Inverter

IEEE Access
Single-stage differential mode inverters (DMI) have been extensively utilized in three-phase grid-connected systems due to several advantages, such as few semiconductor devices resulting from their simple and modular configuration.
Ahmed Shawky, Mokhtar Aly, Waleed Alhosaini, Emad M. Ahmed, Emad A. Mohamed, Ahmed Alshahir   +5 more
doaj   +1 more source

Controle de um conversor CA-CC trifásico PWM de três níveis com fator de potência unitário utilizando DSP [PDF]

, 2003
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia Elétrica.O presente trabalho aborda o desenvolvimento e a implementação do controle de um retificador pré-regulador trifásico PWM de ...
Mussa, Samir Ahmad
core  

Conversor CC-CC trifásico ZVS PWM de três níveis [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Esta tese propõe uma topologia de conversor CC-CC trifásico de três níveis, modulado por largura de pulso e com comutação ...
Agostini Junior, Eloi
core  

High-Efficient Direct Power Control Scheme Using Predictive Virtual Flux for Three-Phase Active Rectifiers

Machines
In recent years, the pulse-width-modulation (PWM) converter has been found to have extensive applications in renewable energy, industrial fields, and others. The high efficiency requirement is crucial to operating a PWM rectifier in various applications,
Mihn Hoang Nguyen, Sangshin Kwak, Seungdeog Choi   +2 more
doaj   +1 more source