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Abstract
In this paper, concepts of fractional-order (FO) derivatives are reviewed and discussed with regard to element models applied in the circuit theory. The properties of FO derivatives required for the circuit-level modeling are formulated. Potential problems related to the generalization of transmission-line equations with the use of FO derivatives are presented. It is demonstrated that some formulations of FO derivatives have limited applicability in the circuit theory. Out of the most popular approaches considered in this paper, only the Grünwald–Letnikov and Marchaud definitions (which are actually equivalent) satisfy the semigroup property and are naturally representable in the phasor domain. The generalization of this concept, i.e., the two-sided fractional Ortigueira–Machado derivative, satisfies the semigroup property, but its phasor representation is less natural. Other ideas (including the Riemann–Liouville and Caputo derivatives—with a finite or an infinite base point) seem to have limited applicability.
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Authors (3)
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Jacek Gulgowski
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Damian Trofimowicz mgr inż.
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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ENERGIES
no. 13,
ISSN: 1996-1073 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Gulgowski J., Stefański T., Trofimowicz D.: On Applications of Elements Modelled by Fractional Derivatives in Circuit Theory// ENERGIES -Vol. 13,iss. 21 (2020), s.5768-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/en13215768
- Verified by:
- Gdańsk University of Technology
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