Results 41 to 50 of about 3,349,636 (246)

Wide Frequency PWM Rectifier Control System Based on Improved Deadbeat Direct Power Control

open access: yesWorld Electric Vehicle Journal, 2022
The precision of deadbeat direct power control depends on the parameters of the system model. In wide frequency applications, such as multi- electric aircraft and electric vehicles, variations in frequency and resistive parameters will affect the control
Wei Chen   +5 more
doaj   +1 more source

Discrete-time Sliding Mode Direct Power Control For Threephase Rectifiers

open access: yesEletrônica de Potência, 2010
In this paper a new discrete-time sliding mode control scheme for three-phase PWM rectifiers is proposed. Active and reactive powers are directly controlled using a virtual-flux oriented reference frame.
Francisco de Assis dos Santos Neves   +4 more
doaj   +1 more source

Power quality issues of 3MW direct-driven PMSG wind turbine [PDF]

open access: yes, 2015
This paper presents power quality issues of a grid connected wind generation system with a MW-class direct-driven permanent magnet synchronous generator (PMSG).
Ahmed, IA, Taylor, GA, Zobaa, AF
core   +1 more source

Power electronics didactic modules for direct current machine control [PDF]

open access: yes2009 International Conference on Power Engineering, Energy and Electrical Drives, 2009
Several didactic modules for an electric machinery laboratory are presented. The modules are dedicated for DC machinery control and get their characteristic curves. The didactic modules have a front panel with power and signal connectors and can be configurable for any DC motor type.
Cordeiro, Armando   +2 more
openaire   +2 more sources

MULTIFUNCTIONAL POWER QUALITY CORRECTION SYSTEM [PDF]

open access: yes, 2018
Study the system of electric power quality control based on AVI with PWM in the systems of group feed of electromechanics with the direct-current ...
KOLB, Andrii
core  

Cascade Failure in a Phase Model of Power Grids

open access: yes, 2012
We propose a phase model to study cascade failure in power grids composed of generators and loads. If the power demand is below a critical value, the model system of power grids maintains the standard frequency by feedback control.
Amaral L. A. N.   +15 more
core   +1 more source

Power system security enhancement by HVDC links using a closed-loop emergency control [PDF]

open access: yes, 2019
In recent years, guaranteeing that large-scale interconnected systems operate safely, stably and economically has become a major and emergency issue.
Allaoui, Tayeb   +4 more
core   +2 more sources

Developmental Disorders in Children Recently Diagnosed With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neurocognitive deficits in adult survivors of childhood cancer are well established, but less is known about developmental disorders (DD) arising shortly after cancer diagnosis. Using 2016–2019 linked Ohio cancer registry and Medicaid data, we compared DD among 324 children with cancer and 606,913 cancer‐free controls.
Jamie Shoag   +5 more
wiley   +1 more source

Optimal Control Design for Multiterminal HVDC [PDF]

open access: yes, 2013
This thesis proposes an optimal-control based design for distributed frequency control in multi-terminal high voltage direct current (MTDC) systems.
de Courreges d'Ustou, Benoit
core  

Exercise Interventions in Children, Adolescents and Young Adults With Paediatric Bone Tumours—A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Bone tumours present significant challenges for affected patients, as multimodal therapy often leads to prolonged physical limitations. This is particularly critical during childhood and adolescence, as it can negatively impact physiological development and psychosocial resilience.
Jennifer Queisser   +5 more
wiley   +1 more source

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