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

• Autores: E. E. Mombello
• Localización: Electrical engineering, ISSN 0948-7921, Vol. 85, Nº 3, 2003, págs. 137-146
• Idioma: alemán
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• Resumen

  • A methodology for determining the equivalent circuit impedances of a system of magnetically coupled coils is presented in this paper. The structure of the equivalent 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 requirementts for preserving the precision of the results, which are highly sensitive to small variations in the parameters, are given.