Numeerisen analyysin ja laskennallisen
tieteen seminaari
31.10.2005 klo
14.15
U356
D.Sc. Anouar Belahcen, Laboratory of
Electromechanics
Numerical analysis
of electrical machines: Field, forces and performances
The structure and different constructions of rotating electrical
machines are explained. The working principle and the equations of
magnetic and mechanical field are presented and developed into adequate
form for FEM implementation. Different aspects related to the
application of these equations to the analysis of rotating electrical
machines are discussed. The problems related to the non-linearity of
iron as well as these related to the coupling of magnetic field with
mechanical and electrical fields are raised and presented. Some
post-processing method to calculate the magnetic forces, torque and
other quantities of importance are presented also.
Contents
- Introduction
- Rotating electrical machines
- Structure and principle of operation
- Field solution
- Maxwell equations
- FE method
- Type of elements
- Performances
- Steady state
- Transient (time integration)
- Forces and torque
- Magnetic forces
- magnetostriction
- Challenges and needs