A method for the calculation of an apparent time invarying inductance for an iron core inductor

Author

Schwarz, Francise ; Klaassens, J. ; Heus, Rob

Author_Institution

Dept. of Electr. Eng., Delft Univ. of Technol., Delft, Netherlands

fYear

1976

fDate

8-10 June 1976

Firstpage

117

Lastpage

127

Abstract

A method for measurement of the instantaneous inductance L(t) of an iron core inductor is presented as function of the inductor current i, the rate of change di/dt of this current and the past history of the iron core at that moment. The inductance of a filter inductor is shown as a function of unidirectional continuous and discontinuous currents. The concept of an equivalent time invarying inductance L_egu is formulated for purpose of piecewise linear time domain analysis of switching networks and a method for its calculation is indicated. The usefulness of this new tool of analysis is confirmed by agreement of calculated and experimentally obtained data.

Keywords

inductance measurement; inductors; switched networks; apparent time invarying inductance; filter inductor; inductor current; instantaneous inductance measurement; iron core inductor; piecewise linear time domain analysis; switching networks; unidirectional continuous currents; unidirectional discontinuous currents; Computers; Inductance; Inductors; Iron; Magnetic cores; Materials; Power harmonic filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1976 IEEE

Conference_Location

Cleveland, OH

Type

conf

DOI

10.1109/PESC.1976.7072906

Filename

7072906