Overloss coefficient in magnetic laminations during PWM supply voltage

Author

Zakrzewski, K.A.

Author_Institution

Inst. of Mechatron. & Inf. Syst., Tech. Univ. of Lodz, Lodz

fYear

2008

fDate

7-10 April 2008

Firstpage

212

Lastpage

214

Abstract

The idea of presented method based on the analytical solution of Maxwell\´s equations in the lamination material was described by the author in the previous work [Zakrzewski, K., 1970], taking into account approximation of constitutive static hysteresis loop by elliptic form of the function B = f(H). In previous elaborated formula, for new isotropic and anisotropic materials it is needed to introduce so called "anomaly coefficient" A₀ deduced from comparison of measured and calculated value of power losses in arbitrary frequency for assumed induction. It is possible to enlarge this method for estimation of loss increase generated by PWM voltage supply in magnetic laminations. The overloss coefficient will be introduced.

Keywords

Maxwell equations; PWM power convertors; eddy current losses; laminations; Maxwell equations; PWM supply voltage; anisotropic materials; anomaly coefficient; constitutive static hysteresis loop approximation; isotropic materials; lamination material; magnetic laminations; overloss coefficient; power losses; PWMvoltage; magnetic laminations; power losses;

fLanguage

English

Publisher

iet

Conference_Titel

Computation in Electromagnetics, 2008. CEM 2008. 2008 IET 7th International Conference on

Conference_Location

Brighton

ISSN

0537-9989

Print_ISBN

978-0-86341-891-4

Type

conf

Filename

4563423