Results 31 to 40 of about 3,281 (295)

Mass reduction of superconducting power generators for large wind turbines

open access: yesThe Journal of Engineering, 2019
High temperature superconductors (HTS) enable very compact electric machines with high power density. Here, an HTS power generator based on authors’ previous double claw pole design is studied and improved.
Kevin Kails   +3 more
doaj   +1 more source

Fault-tolerant matrix-converter-controlled IPMSM-drive system using a predictive controller and sliding-mode estimator

open access: yesThe Journal of Engineering, 2019
This study proposes a fault-tolerant matrix-converter-controlled IPMSM-drive system, in which a predictive speed-loop controller and a predictive current-loop controller are implemented to improve its dynamic responses, including transient responses and ...
Tian-Hua Liu, Shuo-Feng Chang
doaj   +1 more source

Stochastic Modeling of Soft Magnetic Properties of Electrical Steels: Application to Stators of Electrical Machines [PDF]

open access: yes, 2012
La version éditeur de cet article est disponible à l'adresse suivante : 10.1109/TMAG.2012.2201734To take account of the uncertainties introduced on the soft magnetic materials properties (magnetic behavior law, iron losses) during the manufacturing ...
RAMAROTAFIKA, Rindra   +2 more
core   +1 more source

Sliding observer-based demagnetisation fault-tolerant control in permanent magnet synchronous motors

open access: yesThe Journal of Engineering, 2017
This study proposes a fault-tolerant control method for permanent magnet synchronous motors (PMSMs) based on the active flux linkage concept, which addresses permanent magnet (PM) demagnetisation faults in PMSMs. First, a mathematical model for a PMSM is
Changfan Zhang   +3 more
doaj   +1 more source

Study of the assembly, build and test of a linear transverse flux machine

open access: yesThe Journal of Engineering, 2019
This study discusses the topology development of a cylindrical transverse flux linear machine for use with a free piston engine. Despite its three-dimensional flux path, the stator of this topology can be made from regular laminated components and only ...
Junnan Wang   +3 more
doaj   +1 more source

Design and Optimization of the Injection Mold for Rubber Stators in Oil Production Single-Screw Pumps. [PDF]

open access: yesPolymers (Basel)
This study aimed to optimize the injection mold for oil production single-screw pump rubber stators. MOLDFLOW2023 analysis post-design determined the optimal gate position and gating system, and it also analyzed the impact of key parameters on quality ...
Chen H, Miao C, Lin G, Yang W, Li H.
europepmc   +2 more sources

Comparative performance of in-line rotor-stators for deagglomeration processes [PDF]

open access: yes, 2016
Comparative performance of in-line rotor-stators for deagglomeration ...
Gul Ozcan-Taskin (1260723)   +2 more
core   +1 more source

Research and Solutions to Minimize Frontal Area Overheating of Hydro Generator Stator with Vertical Axis

open access: yesEnergies, 2021
About ten hydroelectric power plants realized from 1970 to 1990 in Romania are confronted with stator overheating. The developed mathematical model analyzes the voltage stability based on modal analysis of the Jacobian matrix, identifying the hazardous ...
Victorita Radulescu
doaj   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

The electromagnetic performance of brushless permanent magnet DC motors - with particular reference to noise and vibration. [PDF]

open access: yes, 1991
A comprehensive analytical technique is developed for predicting the instantaneous magnetic field distribution in radial-field, surface-mounted permanent magnet brushless DC motors under any load condition and commutation strategy.
Zhu, Zi-Qiang
core  

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