Zobrazeno 1 - 10
of 206
pro vyhledávání: '"P.J. Leonard"'
Publikováno v:
Eastham, F, Cox, T, Leonard, P & Proverbs, J 2008, ' Linear induction motors with modular winding primaries and wound rotor secondaries ', IEEE Transactions on Magnetics, vol. 44, no. 11, pp. 4033-4036 . https://doi.org/10.1109/TMAG.2008.2001629
Linear induction motors commonly use double layer windings, which produce good sinusoidal travelling fields, but have relatively bulky end windings and use either half-filled slots or overhanging coil sides at the ends of the machine. Long stator sys
Publikováno v:
IEEE Transactions on Magnetics. 42:907-910
A dynamic hysteresis model is used with a 2-D magnetic vector potential finite element formulation. The scheme models traditional eddy current, static BH and anomalous losses. The model is used to predict the BH trajectory and hence the losses for a
Publikováno v:
IEEE Transactions on Magnetics. 38:609-612
The transient characteristics of an experimental test rig consisting of a fixed solid iron stator and moving rotor, when subjected to a step input voltage, are measured. A three-dimensional finite-element scheme that takes into account the nonlinear
Publikováno v:
IEEE Transactions on Magnetics. 38:537-540
Four finite-element formulations for modeling eddy current problems which involve a rotating conductor are examined and compared. The formulations are based on the A-/spl psi/ representation. The first formulation uses a single fixed mesh, nodal A el
Publikováno v:
IEEE Transactions on Magnetics. 36:1462-1467
The authors describe the modeling of the transient dynamic behavior of a solenoidal core type electromagnetic actuator using an overlapping finite element (FE) scheme. The FE scheme allows two topologically unconnected 2D finite element meshes to sli
Publikováno v:
IEEE Transactions on Energy Conversion. 14:1276-1281
The treatment of 3D machine problems using the finite element method to model the field is examined. Methods for coupling to external circuits are reviewed and it is shown that symmetry can be taken care of by the suitable scaling of partitions of th
Publikováno v:
IEEE Transactions on Magnetics. 34:2535-2538
Two finite element implementations for modelling eddy current problems with velocity are examined here. The formulations are based on the A-/spl psi/ representation. In one finite element implementation, the moving current density is represented as a
Autor:
P.J. Leonard, D. Rodger
Publikováno v:
IEEE Transactions on Magnetics. 33:1295-1298
This paper compares finite element formulations for modelling eddy current problems with jumps in conductivity. We study schemes which represent the eddy current regions using nodal or edge based magnetic vector potentials. The use of an additional e
Publikováno v:
IEEE Transactions on Magnetics. 33:2010-2013
This paper describes a 3D finite element scheme for use in dynamic simulations of electromagnetic devices with moving parts connected to an external circuit. The scheme handles source coils through a special coil region based on the magnetic scalar r
Publikováno v:
IEEE Transactions on Magnetics. 32:796-799
This paper describes an efficient scheme for incorporating multiple wire wound coils into 3D finite element electric machine models. The scheme is based on the magnetic scaler representation with an additional basis for each coil. There are no restri