Results 31 to 40 of about 23,561,591 (251)

Hybrid power filters for three-phase four-wire systems

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Using the differential method for calculating the heat and mass transfer, numerical studies of thermal and aerodynamic parameters in the firebox tube furnaces with acoustic gas burners flame grazing at different amounts tiered burners on the side wall of
M. O. Chernyshov   +2 more
doaj   +1 more source

Second order phase field asymptotics for multi-component systems [PDF]

open access: yes, 2006
An asymptotic analysis of a phase field model for solidification in multicomponent alloy systems is presented. In the limit of vanishing interface thickness the related sharp interface model is approximated to second order by taking a non-constant ...
Stinner, Björn, Garcke, Harald
core   +1 more source

Finding connections between three interacting biological oscillators using phase dynamics modeling [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this work was to identify couplings between three interacting biological oscillators using phase dynamics modeling and to determine the influence of a pathological condition on the configuration of unidirectional triplewise couplings in ...
Dick, Olga Evgenievna
doaj   +1 more source

Compact Three Phase Multilevel Inverter for Low and Medium Power Photovoltaic Systems

open access: yesIEEE Access, 2020
A new three phase multilevel inverter with reduced number of components count is proposed in this paper. This inverter is designed using a single DC source per phase to generate multiple level output voltage which makes it suitable for low and medium ...
Md. Halim Mondol   +5 more
doaj   +1 more source

Flux Weakening Controller Design for Series-Winding Three-Phase PMSM Drive Systems

open access: yesWorld Electric Vehicle Journal, 2023
Series-winding three-phase PMSMs have a higher bus voltage utilization than the conventional three-phase PMSMs with star connection. This topology is suitable for applications with a limited bus voltage. However, the zero-sequence current controller will
Senyi Liu   +3 more
doaj   +1 more source

Multi-phase System Supplied by SVM VSI: A New Fast Algorithm to Compute Duty Cycles [PDF]

open access: yes, 2004
La version éditeur de cette article est disponible à l'adresse suivante : http://www.epe-association.org/epe/index.phpMany authors proposed SVM VSI applied to multi-phase ...
HAUTIER, Jean-Paul   +2 more
core   +1 more source

Zero‐Sequence current measurement uncertainty in three‐phase power systems during normal operation

open access: yesIET Generation, Transmission & Distribution, 2021
Zero‐sequence currents in high‐voltage power systems during normal operation can have a significant influence on nearby infrastructure. It is therefore necessary to gain insight into typical levels of zero‐sequence currents in a variety of operational ...
Sjoerd Nauta, Ramiro Serra
doaj   +1 more source

Influence of the Skin and Proximity Effects on the Thermal Field in Flat and Trefoil Three-Phase Systems with Round Conductors

open access: yesEnergies
The passage of current generates heat and increases the temperature of electrical components, which affects the environment, support insulators and contacts.
Paweł Jabłoński   +3 more
doaj   +1 more source

Budeanu’s Distortion Power Components Based on CPC Theory in Three-Phase Four-Wire Systems Supplied by Symmetrical Nonsinusoidal Voltage Waveforms

open access: yesEnergies
Budeanu’s power theory, in its fundamental version, describes single-phase sinusoidal and nonsinusoidal systems. Over time, this elementary description has been extended to three-phase three-wire and four-wire systems, regardless of power conditions ...
Zbigniew Sołjan, Tomasz Popławski
doaj   +1 more source

Reduced Reference Frame Transformation Assessment in Unbalanced Three-Phase Four-Wire Systems

open access: yesIEEE Access, 2023
Three-phase four-wire systems require a reference frame similar to that used in 3-phase 3-wire system configurations that allow them to be easily analysed, modelled and controlled.
Francisco Casado-Machado   +3 more
doaj   +1 more source

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