Results 1 to 10 of about 4,649 (262)

Investigation of Torque Enhancement in PMSMs for LEV Propulsion Using Magnet Segmentation

Energies
In this paper, the effect of eddy-current losses of permanent magnets (PMs) is studied by conducting analyses and experiments. PM segmentation is used to reduce eddy-current losses.
Ali Sinan Cabuk, Ozgur Ustun
doaj   +1 more source

Study of Rotor Slot Wedge Eddy Current Loss of Nuclear Power Turbo-generator under Negative Sequence Operation

Journal of Harbin University of Science and Technology, 2018
In order to study the generator rotor slot wedge eddy current loss under different conditions . The 1407MVA turbo generator at half speed is researched as an example. Mathematical model is established in 2D electromagnetic field.
GE Bao-jun, ZHOU Jia-ju, WANG Li-kun, TAO Da-jun, LI Meng-qiao, HAN Ji-chao   +5 more
doaj   +1 more source

Research on Transient Electromagnetic Field and Eddy Current Losses Reduction in End of Large-Capacity Synchronous Condenser During UHVDC System Faults

IEEE Access
During the fault process of the ultra-high voltage direct current (UHVDC) system, the winding of the large-capacity synchronous condenser (SC) generates strong impulse current, leading to excessive eddy current losses and easily causing local overheating
Erhang Zhu, Yanping Liang, Lulu He
doaj   +1 more source

Finite Element Solutions for Magnetic Field Problems in Terfenol-D Transducers

Sensors, 2020
An appropriate magnetic design helps ensure that the Terfenol-D (Terbium- Dysprosium-Iron alloy) rods in giant magnetostrictive transducers have the perfect magnetostriction ability.
Duo Teng, Yatian Li
doaj   +1 more source

Analysis and Design of Novel High Speed Permanent Magnet Machine Considering Magnet Eddy Current Loss

IEEE Access, 2020
In high speed permanent magnet (HSPM) machines, the computation of magnet eddy current loss is essential as these losses significantly affect the temperature of the permanent magnet (PM) and electromagnetic performance and can result in irreversible ...
Hamid Ali Khan, Faisal Khan, Naseer Ahmad, Jongsuk Ro   +3 more
doaj   +1 more source

An effective higher order finite element computation method for analyzing the eddy current losses in induction motors using subparametric transformations

Partial Differential Equations in Applied Mathematics
An enhanced sub-parametric finite element method is presented for analyzing the eddy current losses in induction motors using higher order sub-parametric transformations.
G. Padmasudha Kannan, K.V. Nagaraja, J.K. Madhukesh, R.S. Varun Kumar, R. Naveen Kumar   +4 more
doaj   +1 more source

Multi-field analysis of energy loss and temperature distribution in magnetic couplings

AIP Advances
The operation of magnetic couplings produces eddy current losses that lead to heat buildup. Excessive temperatures can demagnetize the couplings, ultimately causing transmission failure.
Shuangcheng Fu, Dong Yang, Zenghui Wu, Minghui Xu, Liang Tao, Faqi Zhou   +5 more
doaj   +1 more source

FEM-Based Quantification of Eddy-Current Losses for MV Cables in Trefoil Formation With Non-Magnetic Screens

IEEE Access
Circulating- and eddy-current losses occur in non-magnetic screens and armors of three medium-voltage (MV) single-core cables installed in trefoil formation, where they are bonded and earthed at both ends.
Marko Sucurovic, Dardan Klimenta, Nikolay Hinov, Dragan Tasic, Mladen Banjanin, Darius Andriukaitis   +5 more
doaj   +1 more source

Magnetic Performance of Eddy Current Suppressing Structures in Additive Manufacturing

Actuators
Additively manufactured soft-magnetic components are inherently bulky leading to significant eddy current losses when applied to electrical machines.
Carsten Klein, Christopher May, Matthias Nienhaus   +2 more
doaj   +1 more source

Rotor Eddy Current Loss Calculation of a 2DoF Direct-Drive Induction Motor

Energies, 2019
A two-degree-of-freedom direct-drive induction motor (2DoFDDIM), whose solid rotor is coated with a copper layer, is capable of linear, rotary, and helical motions and has widespread applications.
Wei Wu, Jikai Si, Haichao Feng, Zhiping Cheng, Yihua Hu, Chun Gan   +5 more
doaj   +1 more source