The University of Southampton
University of Southampton Institutional Repository

On the switching control of the DC–DC zeta converter operating in continuous conduction mode

On the switching control of the DC–DC zeta converter operating in continuous conduction mode
On the switching control of the DC–DC zeta converter operating in continuous conduction mode

Here, a switching control mechanism for the stabilization of a DC–DC zeta converter operating in continuous conduction mode is proposed. The switching control algorithm is based on a control Lyapunov function and extends the method proposed for a two-dimensional boost converter model presented in the literature to a four-dimensional zeta converter model. The local asymptotical stability of the operating point is established using LaSalle's invariance principle for differential inclusions. By applying spatial regularization, a modified switching control algorithm reduces the switching frequency and keeps the state-trajectory around a neighbourhood of the operating point. The method works well even if the operation point changes significantly and it is valid for both step-up and step-down operations. Furthermore, by approximating the state-trajectory near the operating point, an explicit relation between the modified switching algorithm and the switching frequency is obtained, which allows to choose systematically the desired switching frequency for the converter to operate. The effectiveness of the proposed method is illustrated with simulation results.

1751-8644
1185-1198
Sarkawi, Hafez
faa025bf-3fac-4f25-8126-0481a3579f65
Ohta, Yoshito
aa21505a-73bf-4e10-a0fb-a84006c69daf
Rapisarda, Paolo
79efc3b0-a7c6-4ca7-a7f8-de5770a4281b
Sarkawi, Hafez
faa025bf-3fac-4f25-8126-0481a3579f65
Ohta, Yoshito
aa21505a-73bf-4e10-a0fb-a84006c69daf
Rapisarda, Paolo
79efc3b0-a7c6-4ca7-a7f8-de5770a4281b

Sarkawi, Hafez, Ohta, Yoshito and Rapisarda, Paolo (2021) On the switching control of the DC–DC zeta converter operating in continuous conduction mode. IET Control Theory and Applications, 15 (9), 1185-1198. (doi:10.1049/cth2.12115).

Record type: Article

Abstract

Here, a switching control mechanism for the stabilization of a DC–DC zeta converter operating in continuous conduction mode is proposed. The switching control algorithm is based on a control Lyapunov function and extends the method proposed for a two-dimensional boost converter model presented in the literature to a four-dimensional zeta converter model. The local asymptotical stability of the operating point is established using LaSalle's invariance principle for differential inclusions. By applying spatial regularization, a modified switching control algorithm reduces the switching frequency and keeps the state-trajectory around a neighbourhood of the operating point. The method works well even if the operation point changes significantly and it is valid for both step-up and step-down operations. Furthermore, by approximating the state-trajectory near the operating point, an explicit relation between the modified switching algorithm and the switching frequency is obtained, which allows to choose systematically the desired switching frequency for the converter to operate. The effectiveness of the proposed method is illustrated with simulation results.

Text
Zeta Converter Control_IETCTA_AcceptedVersion - Accepted Manuscript
Download (1MB)

More information

Accepted/In Press date: 12 February 2021
e-pub ahead of print date: 22 March 2021
Published date: June 2021
Additional Information: Funding Information: The first author would like to thank Universiti Teknikal Malaysia Melaka and the Ministry of Higher Education Malaysia for the financial support. The work of the second and the third authors was supported by JST CREST Grant Number JPMJCR15K1, Japan. Publisher Copyright: © 2021 The Authors. IET Control Theory & Applications published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology

Identifiers

Local EPrints ID: 449211
URI: http://eprints.soton.ac.uk/id/eprint/449211
ISSN: 1751-8644
PURE UUID: ed1551d6-bc47-4696-8e18-610be75a832f

Catalogue record

Date deposited: 19 May 2021 18:19
Last modified: 16 Mar 2024 11:07

Export record

Altmetrics

Contributors

Author: Hafez Sarkawi
Author: Yoshito Ohta
Author: Paolo Rapisarda

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×