Modelling material dependent parameters of layer type straight coils for fast transient pulses

Electrostatics 2015

物理学;数学

Tamus, Z.A.^1 ; Orosz, T.^1 ; Kiss, G.M.^1

Department of Electrical Power Engineering, Budapest University of Technology and Economics, Egry J. u. 18, Budapest

H-1111, Hungary^1

关键词: Accuracy of parameters;    Fast transients;    Frequency dependent parameters;    Lumped circuit models;    Lumped element model;    Signal-on;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/646/1/012048/pdf
DOI  :  10.1088/1742-6596/646/1/012048

来源: IOP

【 摘 要 】

The behavior of coils in case of fast transient pulses is different from that they show at low frequencies. If the dimensions of the coil, i.e. mainly the length of the winding is much shorter than the wavelength of the signal on the coil, a lumped element model can be effectively used taking the capacitances of windings into consideration. In this study a different type of straight, layered coil have been investigated in order to determine parameters of a lumped circuit model of the windings. The frequency dependent parameters are modeled by analytical and finite element calculations and the results are compared to the results of measurements on coils. The finite element method can improve the accuracy of parameter estimation.