Non‐linear Dynamics of Electrical Machines: A Kind of Electro‐Mechanical Sommerfeld Effect?

Electrical machines in modern applications, as for example in electric mobility, are operated at high and rapidly changing rotational speeds. Under such conditions, lateral rotor oscillations due to unbalanced magnetic pull and modified flux linkage may affect the torque and rotational motion and th...

Full description

Saved in:
Bibliographic Details
Published inProceedings in applied mathematics and mechanics Vol. 18; no. 1
Main Authors Boy, Felix, Hetzler, Hartmut
Format Journal Article
LanguageEnglish
Published Berlin WILEY‐VCH Verlag 01.12.2018
Online AccessGet full text

Cover

More Information
Summary:Electrical machines in modern applications, as for example in electric mobility, are operated at high and rapidly changing rotational speeds. Under such conditions, lateral rotor oscillations due to unbalanced magnetic pull and modified flux linkage may affect the torque and rotational motion and thus the operational reliability. Such a scenario, which shows certain similarities to the SOMMERFELD‐effect in classical rotordynamics, is analysed within this paper using a computationally fast model, based on LAGRANGE‐MAXWELL equations and the permeance harmonic method.
ISSN:1617-7061
1617-7061
DOI:10.1002/pamm.201800193