Results 11 to 20 of about 6,872,512 (287)

An Improved Modulation Strategy Combining Phase Shifted PWM and Phase Disposition PWM for Cascaded H-Bridge Inverters

open access: yesEnergies, 2017
: Multilevel modulation strategy is an important factor affecting the output performance of multilevel converters. In this paper, the relationship between phase-shifted pulse width modulation (PWM) and phase disposition PWM is analyzed, and then an ...
Muxuan Xiao, Qianming Xu, Honglin Ouyang
doaj   +2 more sources

Modified Phase-Shifted PWM for Cascaded Half-Bridges of Photovoltaic Application

open access: yesIEEE Access, 2020
Photovoltaic power plants are generally far away from loads such as cities and industrial zones. Moreover, long-distance power transmission for renewable energy will become an inevitable trend in the future.
Xiaoguang Diao   +5 more
doaj   +1 more source

M-ary Amplitude Shift Keying Power and Information Synchronous Transmission Based on Phase-Shifted Full-Bridge

open access: yesApplied Sciences, 2022
This paper proposes an M-ary amplitude shift keying (MASK) power and information synchronous transmission system based on phase-shifted full-bridge (PSFB) for applications in wireless power transmission (WPT).
Xin Zhang   +5 more
doaj   +1 more source

Performance Analysis of Modular Multilevel Converter with NPC Sub-Modules in Photovoltaic Grid-Integration

open access: yesApplied Sciences, 2022
In this article, a three-phase modular multilevel converter (MMC) with three-level neutral point clamped converter (NPC) sub-modules (SMs) along with the placement of transformers in place of arm inductors is proposed for PV grid integration. Compared to
Suresh Mikkili   +3 more
doaj   +1 more source

VSG Control for Cascaded Three-Phase Bridge Based Battery Inverter

open access: yesWorld Electric Vehicle Journal, 2023
With the increasing number of new energy sources connected to the grid, the unbalanced output of three-phase grid-connected inverters and the lack of no inertia and damping characteristics in the traditional microgrid control system will seriously affect
Xiaojing Qi, Jianyong Zheng
doaj   +1 more source

Medium-Voltage Drives (MVD) - Pulse Width Modulation (PWM) Techniques

open access: yes, 2023
In order to keep up with rising customer demand, more and more MVDs are being used to fuel MV motors. Power delivery to a load may be modulated by changing the pulse width.
KAÇAR, FIRAT   +3 more
core   +1 more source

A Circulating Current Suppression Strategy for MMC Based on the 2N+1 PWM Approach

open access: yesWorld Electric Vehicle Journal, 2023
Compared with other topologies, the modular multilevel converter (MMC) has the advantages of higher scalability and lower harmonic distortion. When carrier-based pulse-width modulation approaches are used for the MMC, the number of carriers increases for
Guozheng Zhang   +3 more
doaj   +1 more source

A Single-Carrier-Based Pulse-Width Modulation Template for Cascaded H-Bridge Multilevel Inverters

open access: yesIEEE Access, 2021
Multiplicity of the triangular carrier signals is a criterion for the extension of sinusoidal pulse-width modulation, SPWM, to a number of output voltage levels per phase-leg in cascaded H-bridge (CHB) multilevel inverter (MLI).
Charles Ikechukwu Odeh   +2 more
doaj   +1 more source

Superfast multifrequency phase-shifting technique with optimal pulse width modulation

open access: yesOptics Express, 2011
The technique of generating sinusoidal fringe patterns by defocusing squared binary structured ones has numerous merits for high-speed three-dimensional (3D) shape measurement. However, it is challenging for this method to realize a multifrequency phase-shifting (MFPS) algorithm because it is difficult to simultaneously generate high-quality sinusoidal
Wang, Yajun, Zhang, Song
openaire   +3 more sources

HIL-RT Implementation of UHVDC Transmission System Based on Series-Connected VSC Modules

open access: yesIEEE Access, 2019
This paper presents an ultra-high-voltage direct current (UHVDC) transmission system based on the series-connected voltage source converter (VSC) modules.
Xiaofan Fu   +5 more
doaj   +1 more source

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