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- Title
Analysis of Dielectric Relaxation Spectra by Diffusive representations method : Case of Organic Dielectrics.
- Authors
SAADAOUI, Yahia; ZEGNINI, Boubakeur; SEGHIER, Tahar
- Abstract
This paper deals with the phenomena of polarization and dielectric relaxation of organic dielectrics in the particular context of simulation and identification, the concept of diffusive representation was been introduced in order to transform certain non-standard causal convolution operators such as fractional order integrations or derivations into dissipative input/output linear dynamic systems in a functional state space The application of diffusive representations for the identification of the relaxation parameters of an organic dielectric has shown the efficiency of this method compared to others used in the field, particularly in terms of simulation time and working memory. The elaboration of behavioral state models of linear but non-rational input-output systems using diffusive representation has given, so the identification of the characteristic parameters of these models, gathered in the diffusive symbol, has also presented in the frequency and time domain. The parameter of discretization K has a significant effect on the results obtained, hence its delicate choice. The parameters of the Cole-Cole relaxation model were identified with acceptable precision, which opens a wide field of application of this method in applications of electrical engineering.
- Subjects
DIELECTRICS; DIELECTRIC polarization; ELECTRICAL engineering; HUMAN behavior models; DIELECTRIC relaxation; PARAMETER identification
- Publication
Przegląd Elektrotechniczny, 2021, Vol 97, Issue 8, p52
- ISSN
0033-2097
- Publication type
Article
- DOI
10.15199/48.2021.08.10