Results 41 to 50 of about 4,946,619 (290)

Research and Development of Adjustable Discontinuous Pulse Width Modulation Method for Three-Phase Voltage Source Inverter

open access: yesEnergies, 2022
Continuous pulse width modulation (CPWM) and discontinuous pulse width modulation (DPWM) strategies are used to control voltage source inverter operation.
Andrey Dar’enkov   +4 more
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

A predictive control with flying capacitor balancing of a multicell active power filter [PDF]

open access: yes, 2008
Unlike traditional inverters, multicell inverters have the following advantages: lower switching frequency, high number of output levels, and less voltage constraints on the insulated-gate bipolar transistors.
Llor, Ana-Maria   +5 more
core   +1 more source

A high‐gain IΓ‐source hybrid single‐phase multilevel inverter for photovoltaic application

open access: yesIET Power Electronics, 2021
Impedance‐based step‐up converters are widely developed for photovoltaic applications due to providing single‐stage conversion, high‐efficiency, low voltage and current stresses, and high boost‐factor. An improved Γ‐source (IΓ‐source) single‐phase hybrid
Sako Ghasimi   +2 more
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Enhanced Torque Control of a PMSM Supplied by a Four-Leg Voltage Source Inverter Using the Third Harmonic [PDF]

open access: yes, 2008
This paper investigates an electrical drive composed of a four-leg voltage source inverter and a three-phase starconnected surface permanent magnet synchronous machine with concentrated windings. The inverter fourth leg is clamped to the neutral point of
Johan Gyselinck   +5 more
core   +1 more source

Two Inputs Five-Level Quasi-Z-Source Inverter [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2016
This paper combines quasi-Z-source into a typical five-level inverter, which includes two dc voltage sources, two quasi-Z-sources and five switching devices.
A. Baghbany Oskouei   +2 more
doaj  

Analysis of Z-Source Inverter For Space Vector PWM Fed 3-Phase InductionMotor [PDF]

open access: yesEngineering and Technology Journal, 2010
This paper presents analysis of operation and implementation of Z-source space vector pulse width modulation (SVPWM) inverter fed three phase induction motor. The Z-source is an alternative power conversion topology that can both buck and boost the input
Majid K. Al-Khatat
doaj   +1 more source

Modulation in Voltage Source Inverters: An Algebraic Approach

open access: yesIEEE Access
Pulse width modulation in voltage source inverters with an arbitrary number of phases is analyzed in this paper. The problem is treated as purely algebraic, without any use of space vectors. Regardless of avoiding space vectors, the same results are achieved. It is shown that the problem of determining duty ratio values does not have a unique solution,
Spasoje Mirić   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy