<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A wide variety of nonlinear phenomena, such as bifurcation and chaos, have been observed in power electronics converters. Much research has been conducted on these behaviours in different converter topologies. The buck converter is known to exhibit chaotic behaviour in a wide parameter range, giving rise to unstable behaviours depending on the circuit parameters values. This paper investigates this bifurcation behaviour by varying the parameters of a voltage PI (Proportional Integral) controlled buck converter operating in continuous conduction mode, using a continuous-time model and constant frequency control signal. Furthermore, a novel and improved version of the PI compensation technique, designed using the multi-objective grey wolf optimiser (MOGWO), is proposed to stabilise the buck converter from chaotic state to periodic orbit.</p>
</abstract>

A wide variety of nonlinear phenomena, such as bifurcation and chaos, have been observed in power electronics converters. Much research has been conducted on these behaviours in different converter topologies. The buck converter is known to exhibit chaotic behaviour in a wide parameter range, giving rise to unstable behaviours depending on the circuit parameters values. This paper investigates this bifurcation behaviour by varying the parameters of a voltage PI (Proportional Integral) controlled buck converter operating in continuous conduction mode, using a continuous-time model and constant frequency control signal. Furthermore, a novel and improved version of the PI compensation technique, designed using the multi-objective grey wolf optimiser (MOGWO), is proposed to stabilise the buck converter from chaotic state to periodic orbit.

Chaos Elimination for a Buck Converter Using the Multi-Objective Grey Wolf Optimiser

LAADI Laboratory, Faculty of Science and Technology

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A wide variety of nonlinear phenomena, such as bifurcation and chaos, have been observed in power electronics converters. Much research has been conducted on...

Chaos Elimination for a Buck Converter Using the Multi-Objective Grey Wolf Optimiser

Published Online: May 15, 2023

Page range: 165 - 173

Received: Feb 14, 2023

Accepted: Mar 28, 2023

DOI: https://doi.org/10.2478/pead-2023-0012

Keywords
buck converter, nonlinear phenomena, bifurcation, multi-objective grey wolf optimiser

© 2023 Derradji Bakria et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Chaos Elimination for a Buck Converter Using the Multi-Objective Grey Wolf Optimiser

Published Online: May 15, 2023

Page range: 165 - 173

Received: Feb 14, 2023

Accepted: Mar 28, 2023

DOI: https://doi.org/10.2478/pead-2023-0012

Keywordsbuck converter, nonlinear phenomena, bifurcation, multi-objective grey wolf optimiser

© 2023 Derradji Bakria et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
buck converter, nonlinear phenomena, bifurcation, multi-objective grey wolf optimiser