A study of end turn inductance calculation of BLDC motors
This paper presents the different calculating methods of stator end turn leakage inductance at brushless dc motors (BLDC) with different winding types. The calculations are carried both analytically and numerically. The results of the two dimensional (2D) calculations have been compared with the results of three dimensional (3D) ones for the same motor. Finite Element Method (FEM) is used for 2D and 3D numerical analysis.
End winding reactance computation using a 3D finite element program
The computation of end winding reactance using a 3-D finite element program is presented. The program used is FLUX3D, which takes into account the exact geometry of the machine and the 3-D distribution of the flux density. Special attention is focused on induction machines. Different windings are analyzed and, when available, experimental results are compared against computed values. The comparison shows very good agreement between the two values. >
3D electromagnetic model of a full superconducting generator
A three-dimensional electromagnetic model of a full superconducting generator is presented. Magnetic field calculations by two different methods (analytical and finite element) are given for a single winding surrounded by an iron core. The results of the two methods are compared with each other and with experimental results. Results are also given for a full generator in steady state, in terms of characteristic reactances of the machine and magnetic fields in the end region. >