3 research outputs found
Numerical Investigation of the Fractional Oscillation Equations under the Context of Variable Order Caputo Fractional Derivative via Fractional Order Bernstein Wavelets
This article describes an approximation technique based on fractional order
Bernstein wavelets for the numerical simulations of fractional oscillation
equations under variable order, and the fractional order Bernstein wavelets are
derived by means of fractional Bernstein polynomials. The oscillation equation
describes electrical circuits and exhibits a wide range of nonlinear dynamical
behaviors. The proposed variable order model is of current interest in a lot of
application areas in engineering and applied sciences. The purpose of this
study is to analyze the behavior of the fractional force-free and forced
oscillation equations under the variable-order fractional operator. The basic
idea behind using the approximation technique is that it converts the proposed
model into non-linear algebraic equations with the help of collocation nodes
for easy computation. Different cases of the proposed model are examined under
the selected variable order parameters for the first time in order to show the
precision and performance of the mentioned scheme. The dynamic behavior and
results are presented via tables and graphs to ensure the validity of the
mentioned scheme. Further, the behavior of the obtained solutions for the
variable order is also depicted. From the calculated results, it is observed
that the mentioned scheme is extremely simple and efficient for examining the
behavior of nonlinear random (constant or variable) order fractional models
occurring in engineering and science.Comment: This is a preprint of a paper whose final and definite form is
published Open Access in 'Mathematics' at
[http://dx.doi.org/10.3390/math11112503
Modeling of the Resonant Inverter for Wireless Power Transfer Systems Using the Novel MVLT Method
Wireless power transfer (WPT) is a power transfer technique widely used in many industrial applications, medical applications, and electric vehicles (EVs). This paper deals with the dynamic modeling of the resonant inverter employed in the WPT systems for EVs. To this end, the Generalized State-Space Averaging and the Laplace Phasor Transform techniques have been the flagship methods employed so far. In this paper, the modeling of the resonant inverter is accomplished by using the novel Modulated Variable Laplace Transform (MVLT) method. Firstly, the MVLT technique is discussed in detail, and then it is applied to model a study-case resonant inverter. Finally, a study-case resonant inverter is developed and utilized to validate the theoretical results with MATLAB/Simulink