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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS)
Fredy E. Hoyos
Universidad Nacional de Colombia - Sede Medellín
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

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Simulation, bifurcation, and stability analysis of a SEPIC converter controlled with ZAD Aquiles J. Morelo; Simeón Casanova Trujillo; Fredy E. Hoyos
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 1: February 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (629.561 KB) | DOI: 10.11591/ijece.v10i1.pp728-737

Abstract

This article presents some results of SEPIC converter dynamics when controlled by a center pulse width modulator controller (CPWM). The duty cycle is calculated using the ZAD (Zero Average Dynamics) technique. Results obtained using this technique show a great variety of non-linear phenomena such as bifurcations and chaos, as parameters associated with the switching surface. These phenomena have been studied in the present paper in numerical form. Simulations were done in MATLAB.
Discrete and continuous model of three-phase linear induction motors considering attraction force and end-effects Nicolás Toro-García; Yeison Alberto Garcés-Gómez; Fredy E. Hoyos
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 11, No 4: December 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1983.297 KB) | DOI: 10.11591/ijpeds.v11.i4.pp1737-1749

Abstract

The continuous model of the linear induction motor (LIM) has been made considering the edge effects and the attraction force. Taking the attraction force into account is im- portant when considering dynamic analysis when the motor operates under mechanical load. A laboratory prototype has been implemented from which the parameters of the equivalent LIM circuit have been obtained. The discrete model has been developed to quickly obtain computational solutions and to analyze non-linear behaviors through the application of discrete control systems. In order to obtain the discrete model of the LIM we have started from the solution of the continuous model. To develop the model, the magnetizing inductance has been considered, which reflects the edge effects. In the results, the model is compared without considering the edge effects or the attraction force with the proposed model.
Co-Authors Aquiles J. Morelo Nicolás Toro-García Simeón Casanova Trujillo Yeison Alberto Garcés-Gómez