A 3-D Overlapping Finite-Element Scheme for Modeling Movement

Autor: P.C. Coles, H.C. Lai, D. Rodger

Publikováno v: IEEE Transactions on Magnetics. 40:533-536

This paper describes a three-dimensional (3-D) overlapping finite-element scheme for modeling movement in electromagnetic devices, which results in a continuously changing air gap. The method uses separate finite-element meshes to model the individua

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f3300b8f84d2a603f85be77bae960e7
https://doi.org/10.1109/tmag.2004.824885

Time-transient dynamic analysis of a rotational test-rig benchmark problem

Autor: H.C. Lai, D. Rodger, R.J. Hill-Cottingham, E. Melgoza, P.J. Leonard, P.C. Coles

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::edca62f8da9f8561c4a913ace238e0d0
https://doi.org/10.1109/20.996159

Numerical models of an induction machine

Autor: H.C. Lai, R.J. Hill-Cottingham, D. Rodger, P.C. Coles

Publikováno v: IEEE Transactions on Magnetics. 39:1551-1553

Measurements of the performance of a 5-kVA induction machine are compared with predictions carried out using finite elements and semianalytic techniques. Both transient and steady-state performance results are compared and sufficient dimensions are p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::78f63c7b1b55c52f1e4823e841ac41a8
https://doi.org/10.1109/tmag.2003.810424

A New High Efficiency Line Start Motor with High Starting Torque

Autor: D. Rodger, H.C. Lai, R.J. Hill-Cottingham, Francis Robinson, P.C. Coles

Publikováno v: Rodger, D, Lai, H C, Hill-Cottingham, R J, Coles, P C & Robinson, F 2006, ' A New High Efficiency Line Start Motor with High Starting Torque ' Paper presented at Power Electronics, Machines and Drives, 2006. The 3rd IET International Conference on, 1/01/06, pp. 551-555 .

A new electrical machine which starts directly on line and does not require power electronics has been developed. Compared with the standard line start induction motor it has about 30% less losses and a similar starting performance. The new machine h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfd2a78dcb0f2f6a472ec4469e6e0c83
https://purehost.bath.ac.uk/ws/files/134395391/A_New_High_Efficiency_Line_Start_Motor_with_High_Starting_Torque.pdf

Finite element modelling of thin skin depth problems using magnetic vector potential

Autor: H.C. Lai, P.J. Leonard, D. Rodger, P.C. Coles

Publikováno v: IEEE Transactions on Magnetics. 33:1299-1301

A technique for modelling thin skin depth eddy currents in 3D devices using the magnetic vector potential A is presented. An analytic solution for the magnetic field in the thin skin is used to develop a surface impedance which appears as a surface i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d4e345eac5cd20786f9f46cfd8e32716
https://doi.org/10.1109/20.582493