Results 291 to 300 of about 768,970 (347)

Eddy current loss in grooved solid poles

IEEE Transactions on Magnetics, 1978
In this paper, the approximate equivalent circuit of the grooved solid pole synchronous motor is derived. In the approximate equivalent circuit, the upper part (grooved part) and the lower part (core part) of the grooved solid pole synchronous motor are separated.
H. Yamada, M. Nanba
openaire   +1 more source

Kriging Surrogate Model-Based Design of an Ultra-High-Speed Surface-Mounted Permanent-Magnet Synchronous Motor Considering Stator Iron Loss and Rotor Eddy Current Loss

IEEE transactions on magnetics, 2022
Soori Im, Soo-Gyung Lee, Dong-Min Kim, Gu Xu, Sungsik Shin, M. Lim   +5 more
semanticscholar   +1 more source

Analysis of Multi-Phase and Multi-Layer Factional-Slot Concentrated-Winding on PM Eddy Current Loss Considering Axial Segmentation and Load Operation

IEEE transactions on magnetics, 2018
The effects of multi-phase and multi-layer windings of the 12-slots 10-poles surface-mounted permanent magnet synchronous machines (SPMSMs) on eddy current losses in permanent magnets (PMs) are mainly investigated using the 3-D finite element analysis in
Qixu Chen, D. Liang, S. Jia, X. Wan
semanticscholar   +1 more source

Eddy current losses in round conductors

27th International Spring Seminar on Electronics Technology: Meeting the Challenges of Electronics Technology Progress, 2004., 2005
Eddy current losses in round conductors are discussed. An analytical approximation is presented. The proposed solution considers the wire diameter, the number of layers and wires in parallel, the distance from a possible air gap, the horizontal and vertical copper filling factors.
openaire   +1 more source

Eddy Current Losses of Winding of Transformer

EUROCON 2005 - The International Conference on "Computer as a Tool", 2005
This paper deals with the transformer losses especially eddy current losses in windings. Nowadays, there is the stress on the possibilities of lowering losses and optimisation of transformer dimension. Calculations were provided with using FEM method.
M. Krasl, R. Vlk, J. Grosiar
openaire   +1 more source

Eddy current losses due to alternating current strips

IEEE Transactions on Power Apparatus and Systems, 1975
A two dimensional solution for the vector potential and eddy current loss in a plurality of conducting regions due to a plurality of current sources is presented. The solution is applicable to those problems with boundaries which may be aligned with the coordinate surfaces of an orthogonal system of separable coordinates.
openaire   +1 more source

Magnetic Characteristics and Excess Eddy Current Losses

2009 IEEE Industry Applications Society Annual Meeting, 2009
To study the fundamental essence of excess losses and to achieve an accurate core loss separation formula, a dynamic finite element model for the non-linear hysteresis loop of laminations has been established. In the model, Maxwell's Equations are solved for the hysteresis character in the magnetic lamination, using the Galerkin finite element method ...
Yu Zhang, Ming-C. Cheng, Pragasen Pillay
openaire   +1 more source

Surface Eddy Current Loss Reduction in Additively Manufactured Permanent Magnet Rotor Active Parts

International Conference on Electrical Machines, 2018
This paper describes the development process, 3D finite element analysis and resulting design guidelines for reducing eddy current effects on rotor surfaces of permanent magnet synchronous machines considering the three-dimensional freedom when designing
S. Urbanek, B. Ponick
semanticscholar   +1 more source

Eddy Current Losses of Coaxial Magnetic Gears

2018 XIII International Conference on Electrical Machines (ICEM), 2018
Reduction of eddy current losses is essential for magnetic gears efficiency enhancement. These losses are resulting in output torque reduction, especially in high rotational speeds and high gear ratios. In this paper, we developed an approach for determination of the eddy current losses of a coaxial magnetic gear.
V. Mateev, M. Todorova, I. Marinova
openaire   +1 more source

Interstrand eddy current losses in Rutherford cable

Cryogenics, 1995
A continuum model is used to calculate the interstrand eddy current loss in the Superconducting Supercollider (SSC) magnets, and expressions are derived for the conductivities. An advantage of the model is that three contributions to the loss can be investigated separately: (1) the contribution of crossover conductance between strand layers; (2) the ...
W.J. Carr, V.T. Kovachev
openaire   +1 more source