Prospects and Limitations of Power Balance Approach for Studying Forces and Electromagnetic Damping in Electrical Machines

Bishal Silwal*, Paavo Rasilo, Antero Arkkio

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
168 Downloads (Pure)

Abstract

A cage induction machine with dynamic rotor eccentricity is considered. In general, force and torque computations in the finite-element analysis of electrical machines are done using conventional direct methods. Many methods have been put forward with a claim to be more accurate than one another. In this paper, we assess the accuracy of the typical force computation method used in the finite-element analysis of electrical machines, for various types of mesh used in the machine's air gap during simulations. The possibility of using the power balance of the machine to validate the force calculation and alternatively calculate the force is discussed. Besides, its applicability to study the electromagnetic damping of mechanical vibrations due to unbalanced magnetic pull is presented.

Original languageEnglish
Article number8249751
Number of pages8
JournalIEEE Transactions on Magnetics
Volume54
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • Cage induction machine
  • eccentricity
  • finite-element method (FEM)
  • force computation
  • meshing
  • power balance

Fingerprint Dive into the research topics of 'Prospects and Limitations of Power Balance Approach for Studying Forces and Electromagnetic Damping in Electrical Machines'. Together they form a unique fingerprint.

Cite this