Results 51 to 60 of about 20,438 (288)

Model-Based Predictive Current Controllers in Multiphase Drives Dealing with Natural Reduction of Harmonic Distortion

open access: yesEnergies, 2019
An important drawback in the application of model-based predictive controllers for multiphase systems is the relatively high harmonic content. Harmonics arise due to the fixed sampling-time nature and the absence of modulation methods in the control ...
Cristina Martin   +3 more
doaj   +1 more source

PERFORMANCE ANALYSIS OF SIX-PHASE INDUCTION MACHINE-MULTILEVEL INVERTER WITH ARBITRARY DISPLACEMENT

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. This paper presents a d-q model of six-phase induction machine supplied by a two identical voltage source inverters suitable for analysis the dynamic steady under balanced operating condition.
Marwa Ben Slimene
doaj   +1 more source

A New Post-Fault Reconfiguration Strategy under Open-Phase Operation Conditions of Asymmetrical Double-Star Induction Machines

open access: yesEnergies, 2023
The fault tolerance proprieties of multiphase induction machines make them candidate technologies for future electrified transport systems. Indeed, the use of multiphase drives is primarily recommended for their redundancy, which allows them to handle ...
Koussaila Iffouzar   +5 more
doaj   +1 more source

Direct Simulation Monte Carlo for astrophysical flows: II. Ram pressure dynamics [PDF]

open access: yes, 2013
We use the Direct Simulation Monte Carlo (DSMC) method combined with an n-body code to study the dynamics of the interaction between a gas-rich spiral galaxy and intracluster or intragroup medium, often known as the ram pressure scenario.
Weinberg, Martin D.
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

A Generalized Fault Tolerant Control Based on Back EMF Feedforward Compensation: Derivation and Application on Induction Motors Drives

open access: yesEnergies, 2022
In this paper, a fault-tolerant three-phase induction drive based on field-oriented control is studied, and an analytical approach is proposed to elucidate the limitations of FOC in flux-torque regulation from the controller perspective.
Mahdi Tousizadeh   +5 more
doaj   +1 more source

The self-regulated AGN feedback loop: the role of chaotic cold accretion [PDF]

open access: yes, 2015
Supermassive black hole accretion and feedback play central role in the evolution of galaxies, groups, and clusters. I review how AGN feedback is tightly coupled with the formation of multiphase gas and the newly probed chaotic cold accretion (CCA). In a
Gaspari, M.
core   +2 more sources

Synchronous multiphase electric drive with multi-channel control

open access: yesVestnik IGEU, 2023
A promising way to improve the technical and economic characteristics of an AC electric drive is to design it based on an executive synchronous motor with an increased number of phases of the stator winding. However, the specific nature of the m-phase (m > 3) synchronous motor is determined by the energy transfer by the whole spectrum of spatial ...
openaire   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Power factor correction of an electrical drive system based on multiphase machines

open access: yes, 2014
International audienceThis paper deals with the energy efficiency improvement of an electrical drive which can be used both in wind energy conversion or motor drive applications.
Benbouzid, Mohamed   +3 more
core   +2 more sources

Home - About - Disclaimer - Privacy