Results 21 to 30 of about 10,329 (261)

Research on Single-Phase PWM Converter with Reverse Conducting IGBT Based on Loss Threshold Desaturation Control

open access: yesEnergies, 2017
In the application of vehicle power supply and distributed power generation, there are strict requirements for the pulse width modulation (PWM) converter regarding power density and reliability.
Xianjin Huang   +3 more
doaj   +1 more source

A mine-used frequency converter filter device

open access: yesGong-kuang zidonghua, 2020
The mine-used frequency converter is connected with motor through a long cable, and there is phenomenon of voltage reflection in transmission process of pulse width modulation(PWM) pulse, which causes spike voltage at the motor end and seriously affects ...
RONG Xiang   +4 more
doaj   +1 more source

A Simple Carrier-Based Modulation for the SVM of the Matrix Converter [PDF]

open access: yes, 2013
Today, industry has not fully embraced the matrix converter solution. One important reason is its high control complexity. It is therefore relevant to propose a simpler but efficient modulation scheme, similar as three phase voltage source inverter ...
ARPILLIERE, Michel   +5 more
core   +1 more source

A VSC transmission system using flying capacitor multilevel converters and selective harmonic elimination pWM control

open access: yes, 2005
A transmission system based on voltage-source three-level flying capacitor (FC) multilevel converters with selective harmonic elimination pulse-width modulation (SHE-PWM) control is presented in this paper.
Lie Xu   +3 more
core   +1 more source

Designing a Passively Damped Quasi-Two-Level-Operated Modular Multilevel Converter for Drive Applications

open access: yesIEEE Access, 2020
This paper concentrates on the simplest quasi-two-level PWM operation mode for modular multilevel converters, where the internal currents within the converter are not controlled.
Jakub Kucka, Axel Mertens
doaj   +1 more source

VSC transmission system using flying capacitor multilevel converters and hybrid PWM control

open access: yes, 2007
A high-voltage direct current (HVDC) transmission system based on three-level flying capacitor (FC) multilevel converters with hybrid pulse-width modulation (PWM) is presented in this paper.
Agelidis, V.G., Xu, L.
core   +1 more source

Comparative Analysis among DSP and FPGA-based Control Capabilities in PWM Power Converters [PDF]

open access: yes, 2004
PWM power converters are close to be mature for standard diffusion. New FPGA technologies could now realise at best the digital control key-points: flexible performance and time to market.
Fratta, Antonino   +7 more
core   +1 more source

Stability Analysis With Considering the Transition Interval for PWM DC-DC Converters Based on Describing Function Method

open access: yesIEEE Access, 2018
The nonlinearity of the switching process in DC-DC converters can result in the inaccuracy and invalidation of traditional stability criterion based on linear modeling, which is very harmful in practice, especially for the DC-DC converters with high ...
Hong Li   +5 more
doaj   +1 more source

A single-phase direct buck-boost AC–AC converter with minimum number of components

open access: yesScientific Reports, 2023
In this paper, a single-phase direct pulse width modulation (PWM) buck-boost AC–AC converter is proposed. The proposed converter utilizes a minimum number of semiconductor switches and passive components that decreases the converter power losses and ...
Fawzy Adel   +3 more
doaj   +1 more source

PWM control and experiment of modular multilevel converters

open access: yes2008 IEEE Power Electronics Specialists Conference, 2008
A modular multilevel converter (MMC) is one of the next-generation multilevel PWM converters intended for high- or medium-voltage power conversion without transformers. The MMC consists of cascade connection of multiple bidirectional PWM chopper-cells and floating dc capacitors per leg, thus requiring voltage-balancing control of their chopper-cells ...
Makoto Hagiwara, Hirofumi Akagi
openaire   +2 more sources

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