Results 61 to 70 of about 74,738 (303)

Traction Drive Control System for Railway Electric Rolling Stock Based on the Application of Power Factor as an Optimization Criterion [PDF]

Problems of the Regional Energetics
The objective of this work is to provide theoretical substantiation for the possibility of using power factor as a criterion in the development of optimized automatic control systems for AC electric rolling stock traction drives.
Goolak S., Gorobchenko O., Holub H., Kulbovskiy I., Petrychenko O.   +4 more
doaj   +1 more source

Fault-tolerant control for a modular generator and converter scheme for direct-drive wind turbines : Industrial Electronics, IEEE Transactions on

, 2011
A modular power electronic converter, with a cascaded H-bridge multilevel inverter, has been proposed as the grid interface for a large direct drive wind turbine generator.
Parker, Max, Ng, Chong, Ran, Li, Parker, M.A.   +3 more
core   +1 more source

Understanding Further the Phenotypic Spectrum of Central Nervous System Inflammatory Demyelinating Disorders Using Unsupervised Clustering

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Central nervous system (CNS) inflammatory demyelinating syndromes, including multiple sclerosis (MS), aquaporin‐4 antibody–positive neuromyelitis optica spectrum disorder (AQP4 + NMOSD), and myelin oligodendrocyte glycoprotein (MOG) antibody–associated disease (MOGAD), occasionally overlap.
Bade Gulec, Elif Everest, Melih Tutuncu, Ugur Bilge, Sabahattin Saip, Ugur Uygunoglu, Aksel Siva   +6 more
wiley   +1 more source

Direct Flux Field Oriented Control of IPM Drives with Variable DC-Link in the Field-Weakening Region [PDF]

, 2009
This paper presents the direct flux control of an interior permanent-magnet (IPM) motor drive in the field-weakening region. The output torque is regulated by the coordinated control of the stator flux amplitude and the current component in quadrature ...
Pellegrino, Gian-Mario Luigi, Guglielmi, Paolo, Armando, Eric Giacomo, PELLEGRINO, GIAN - MARIO LUIGI   +3 more
core   +1 more source

Assessing the Sensitivity and the Clinical Impact of the 2023 American College of Rheumatology/EULAR Classification Criteria in Obstetric Antiphospholid Syndrome: Findings From a Multicenter Italian Cohort With a Long‐Term Follow‐Up

Arthritis Care &Research, EarlyView.
Objective The aim of this study was to evaluate the sensitivity of the 2023 American College of Rheumatology (ACR)/EULAR classification criteria for antiphospholipid syndrome (APS) in a real‐world cohort of women diagnosed with primary obstetric APS (oAPS) and to assess their ability to identify patients at risk of future pregnancy complications ...
Francesca Ruffilli, Cecilia Nalli, Francesca Crisafulli, Carlo Garaffoni, Marcello Govoni, Giulia Voltarel, Alba C. Pozzi, Beatrice Maranini, Ettore Silvagni, Alessandra Bortoluzzi, Angela Tincani   +10 more
wiley   +1 more source

Rheumatoid Arthritis and Coronary Artery Calcium Progression: A Case Cohort Analysis From ELSA‐Brasil

Arthritis Care &Research, EarlyView.
Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada, Marcos Rafael N. Cavalcante, Itamar de Souza Santos, Márcio S. Bittencourt, Vandrize Meneghini, Paulo A. Lotufo, Alessandra C. Goulart, Isabela M. Bensenor   +7 more
wiley   +1 more source

HX_D2F AC Drive Heavy-haul Freight Electric Locomotive

机车电传动, 2019
The main technical parameters and characteristics of HXD2F AC drive heavy axle load freight electric locomotive were introduced. The main performances and characteristics of electric control system, traction system, braking system and mechanical system ...
Haiping WANG, Shiyong LYU, Hua LI
doaj  

Measurement of the electrical quantities of the wet scrubber [PDF]

Journal on Processing and Energy in Agriculture, 2022
With the aim of reducing environmental, energy and quality problems in the field of farming of animal species, laboratory for agricultural technique in animal husbandry, Department of Agricultural Engineering, Faculty of Agriculture, University of Novi ...
Zoranović Miodrag, Ivanišević Mladen
doaj  

Feasibility of high frequency alternating current power distribution for the automobile auxiliary electrical system [PDF]

, 2011
This study investigates the feasibility and potential benefits of high frequency alternating current (HFAC) for vehicle auxiliary electrical systems. A 100Vrms, 50kHz sinusoidal AC bus is compared with 14V DC and 42V DC electrical systems in terms of ...
Antaloae, C. C.
core  

The Detection of Shaft Misalignments using Motor Current Signals from a Sensorless Variable Speed Drive

, 2014
Shaft misalignments are common problems in rotating machines which cause additional dynamic and static loads, and vibrations in the system, leading to early damages and energy loss.
Gu, Fengshou, Ball, Andrew, Fengshou Gu, Samieh Abusaad, Benghozzi, Ahmed, Ahmed Benghozzi, Ann Smith, Andrew Ball, Abusaad, Samieh, Smith, Ann   +9 more
core   +1 more source