Influence of simplifications of the rotational magnetization model on calculation accuracy
ISSN: 0332-1649
Article publication date: 5 May 2015
Abstract
Purpose
The purpose of this paper is to present the differences in results of numerical calculations arising from different simplifications of the rotational magnetization model in typical dynamo sheets.
Design/methodology/approach
A comprehensive model of rotational magnetization processes in typical dynamo sheets should take into consideration the magnetic hysteresis and eddy current phenomena and also certain anisotropic properties. The chosen model of the rotational magnetization is briefly presented in this paper. A method of the inclusion of the rotational magnetization model into equations of the magnetic field distribution is described. The correctness of these equations has been verified experimentally. Numerical calculations of the rotational magnetization in two types of dynamo sheets were carried out for several simplifications of the described model.
Findings
Results of numerical calculations of the rotational magnetization with the omission of the hysteresis phenomenon or with the omission of eddy currents were compared with results obtained with the use of the comprehensive model of the rotational magnetization.
Practical implications
The paper presents comments and recommendations concerning the omission of both the hysteresis phenomenon and eddy currents in the analysis of the rotational magnetization in dynamo sheets and the impact of these simplifications on numerical calculation results.
Originality/value
The content of the paper refers to very important issues of modeling and calculations of the rotational magnetization in typical dynamo steel sheets.
Keywords
Acknowledgements
This paper was supported by Research Grant No. DEC-2011/01/B/ST7/04479: “Modelling of nonlinearity, hysteresis, and anisotropy of magnetic cores in electromechanical converters with rotating magnetic field” financed by the National Science Centre (Poland).
Citation
Mazgaj, W. and Warzecha, A. (2015), "Influence of simplifications of the rotational magnetization model on calculation accuracy", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 34 No. 3, pp. 740-753. https://doi.org/10.1108/COMPEL-10-2014-0281
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited