Journal Article

·2023 OPEN ACCESS

Wavelet methods for fractional electrical circuit equations

Sadiye Nergis Tural-Polat YTU , Arzu Turan Dıncel YTU

Physica Scripta

Abstract

Abstract Classical electric circuits consists of resistors, inductors and capacitors which have irreversible and lossy properties that are not taken into account in classical analysis. FDEs can be interpreted as basic memory operators and are generally used to model the lossy properties or defects. Therefore, employing fractional differential terms in electric circuit equations provides accurate modelling of those circuit elements. In this paper, the numerical solutions of fractional LC, RC and RLC circuit equations are considered to better model those imperfections. To this end, the operational matrices for Bernoulli and Chebyshev wavelets are used to obtain the numerical solutions of those fractional circuit equations. Chebyshev wavelets are orthogonal, and under some circumstances, Bernoulli wavelets can be orthogonal. The wavelet methods’ quick convergence and minimal processing load depend on the orthogonality principle. In the proposed method, those FDEs are transformed into algebraic equation systems using operational matrices employing the discrete Wavelets. The performance of those two wavelet methods are compared and contrasted for computational load, speed, and absolute error values. The paper exploits discrete Bernoulli and Chebyshev wavelets for the numerical solution of fractional LC, RC and RLC circuit equations. The fast convergence, low processing burden, and compactness of the Bernoulli and Chebyshev wavelet methods for fractional circuit equation solutions represent the novel contributions of this paper. Numerical solutions and comparisons are also presented to validate the method.

Keywords

Wavelet Legendre wavelet Chebyshev iteration Mathematics RLC circuit Orthogonality Bernoulli's principle Lossy compression Applied mathematics Mathematical analysis Fast wavelet transform Chebyshev equation Chebyshev polynomials Algorithm Topology (electrical circuits) Computer science Discrete wavelet transform Wavelet transform Orthogonal polynomials Capacitor Physics Voltage

Subject Areas

Fractional Differential Equations Solutions ·Modeling and Simulation ·Physical Sciences
Advanced Control Systems Design ·Control and Systems Engineering ·Physical Sciences
Iterative Methods for Nonlinear Equations ·Numerical Analysis ·Physical Sciences

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