State-space Modelling and Digital Controller Design for DC-DC Converter

The recent development in digital technology offers better platform for easy implementation of advance control algorithm in power converter design making digital control a viable alternative to analogue counterpart. Controller design for power converters has been very challenging due to non-linear c...

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Main Authors: Ibrahim, O., Yahaya, N.Z., Saad, N.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.25617 /
Published: Universitas Ahmad Dahlan 2016
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099927488&doi=10.12928%2fTELKOMNIKA.v14i1.3042&partnerID=40&md5=cd243471b94033b4930d2635eea6d4c5
http://eprints.utp.edu.my/25617/
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Summary: The recent development in digital technology offers better platform for easy implementation of advance control algorithm in power converter design making digital control a viable alternative to analogue counterpart. Controller design for power converters has been very challenging due to non-linear characteristics of power switches, the supply voltage variability, load current changes and circuit element variation. This paper presents dynamic averaged state-space modelling of non-ideal dc-dc boost converter with parasitic and digital controller design for boost converter using digital redesign and direct digital design methods. The system was simulated in Matlab/Simulink to investigate the dynamic performance of the two controllers� transient response, control bandwidth and response to variable supply voltage. The results demonstrated fast transient and wide control bandwidth for tight voltage regulation to variable input voltage. © 2016. Universitas Ahmad Dahlan. All rights reserved.