Fractional RC and LC Electrical Circuits

In this paper we propose a fractional differential equation for the electrical RC and LC circuit in terms of the fractional time derivatives of the Caputo type. The order of the derivative being considered is 0 <  ≤ 1. To keep the dimensionality of the physical parameters R, L, C the new paramet...

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Detalles Bibliográficos
Autores: José Francisco Gómez-Aguilar, Juan Rosales-García, José Roberto Razo-Hernández, Manuel Guía-Calderón
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:México
Institución:Universidad de Guanajuato
Repositorio:Redalyc-UG
OAI Identifier:oai:redalyc.org:40430749013
Acceso en línea:https://www.redalyc.org/articulo.oa?id=40430749013
Access Level:acceso abierto
Palabra clave:Ingeniería
mittag
leffler functions •
electrical circuits •
fractional calculus •
fractional structures
Descripción
Sumario:In this paper we propose a fractional differential equation for the electrical RC and LC circuit in terms of the fractional time derivatives of the Caputo type. The order of the derivative being considered is 0 <  ≤ 1. To keep the dimensionality of the physical parameters R, L, C the new parameter σ is introduced. This parameter characterizes the existence of fractional structu- res in the system. A relation between the fractional order time derivative  and the new parameter σ is found. The numeric Laplace transform method was used for the simulation of the equations results. The results show that the fractional differential equations generalize the behavior of the charge, voltage and current depending of the values of . The classical cases are re- covered by taking the limit when  = 1. An analysis in the frequency domain of an RC circuit shows the application and use of fractional order differential equations.