Modeling of a coil system considering frequency-dependent inductances and losses. Determination of the equivalent circuit impedances

MOMBELLO E.

ELECTRICAL ENGINEERING (BERLIN. PRINT)

Springer Verlag

Año: 2003 vol. 85 p. 137 - 146

0948-7921

A methodology for determining the equivalentcircuit impedances of a system of magnetically coupledcoils is presented in this paper. The structure of theequivalent circuit has been proposed in previous works [Mombello (2000) Electr Eng 84:3–10; 84:11–19]. Starting from of a series of impedance measurements on the coil system for an appropriate frequency range, the necessary information is acquired to begin a process of identification of the circuit parameters. The parameter identification procedure is detailed, and consists of two successive minimization processes. Fundamental requirements for preserving the precision of the results, which are highly sensitive to small variations in the parameters, are given.