Results 31 to 40 of about 3,833,099 (322)

Rotor Position Synchronization in Central-Converter Multi-Motor Electric Actuation Systems

Energies, 2021
The aerospace industry is increasingly transitioning from hydraulic and pneumatic drives to power-electronic based drive systems for reduced weight and maintenance.
Cláudio de Andrade Lima, James Cale, Kamran Eftekhari Shahroudi   +2 more
doaj   +1 more source

Evolution and Modern Approaches for Thermal Analysis of Electrical Machines [PDF]

, 2009
In this paper, the authors present an extended survey on the evolution and the modern approaches in the thermal analysis of electrical machines. The improvements and the new techniques proposed in the last decade are analyzed in depth and compared in ...
Boglietti, Aldo, Cavagnino, Andrea, Mejuto, C., Mueller, M., Shanel, M., Staton, D.   +5 more
core   +1 more source

A Novel Exact Analytical Solution Based on Kloss Equation towards Accurate Speed-Time Characteristics Modeling of Induction Machines during No-Load Direct Startups

Applied Sciences, 2021
The acceleration time of induction machines (IMs) is essential for proper protection-relay settings of the machine to prevent voltage sags in local power areas. In this paper, mathematical modeling of IMs’ speed-time characteristics during no-load direct
Martin Ćalasan, Mohammed Alqarni, Marko Rosić, Nikola Koljčević, Basem Alamri, Shady H. E. Abdel Aleem   +5 more
doaj   +1 more source

Intelligent Bearing Fault Diagnosis Method Based on HNR Envelope and Classification Using Supervised Machine Learning Algorithms

Advances in Electrical and Electronic Engineering, 2021
Research on data-driven bearing fault diagnosis techniques has recently drawn more and more attention due to the availability of massive condition monitoring data.
Ilias Ouachtouk, Soumia El Hani, Khalid Dahi   +2 more
doaj   +1 more source

High temperature superconducting rotating electrical machines: An overview

Energy Reports, 2023
Superconducting rotating machines are more efficient, smaller and lighter than conventional ones. Thus, they can reduce energy consumption and can be an enabling technology in applications that require light-weight machines.
Calvin C. T. Chow, M. Ainslie, K. Chau
semanticscholar   +1 more source

A comprehensive overview of high-speed solid-rotor induction machines: Applications, classification, and multi-physics modeling

International Journal of Electrical Power & Energy Systems
Solid-rotor induction machines have gained significant attention in various industrial applications due to their robustness, reliability, and cost-effectiveness.
Vladimir Bilek, Jan Barta, Marek Toman, Petr Losak, Gerd Bramerdorfer   +4 more
doaj   +1 more source

Local weak observability conditions of sensorless AC drives [PDF]

, 2015
Alternating current (AC) electrical drive control without mechanical sensors is an active research topic. This paper studies the observability of both induction machine and synchronous machine sensorless drives.
Duc, Gilles, Koteich, Mohamad, Maloum, Abdelmalek, Sandou, Guillaume   +3 more
core   +3 more sources

Internet of Things-Based Control of Induction Machines: Specifics of Electric Drives and Wind Energy Conversion Systems

Energies
The Internet of Things (IoT) is introduced in systems with electrical machines, such as in electric drive systems, wind energy generating systems, and small and special machines, to remote monitor and control the operation for data acquisition and ...
Maria G. Ioannides, Anastasios P. Stamelos, Stylianos A. Papazis, Erofili E. Stamataki, Michael E. Stamatakis   +4 more
doaj   +1 more source

Comparitive study of the influence of harmonic voltage distortion on the efficiency of induction machines versus line start permanent magnet machines [PDF]

, 2012
Induction machines have nearly reached their maximal efficiency. In order to further increase the efficiency the use of permanent magnets in combination with the robust design of the induction machine is being extensively researched. These so-called line
Debruyne, Colin, Derammelaere, Stijn, Desmet, Jan, Vandevelde, Lieven   +3 more
core  

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source