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Investigating the impact of discretization techniques on real-time digital control of DC-DC boost converters: A comprehensive analysis

Cağfer Yanarateş, Zhongfu Zhou Orcid Logo, Aytaç Altan

Heliyon, Volume: 10, Issue: 20, Start page: e39591

Swansea University Author: Zhongfu Zhou Orcid Logo

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DOI (Published version): 10.1016/j.heliyon.2024.e39591

Abstract

This paper provides a thorough comparative analysis of discretization techniques commonly utilized in digital control applications for DC-DC boost converters (DBCs). Given the crucial role of DC-DC converters in various industries such as renewable energy systems, electric vehicles, and portable ele...

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Published in: Heliyon
ISSN: 2405-8440
Published: Elsevier BV 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa68586
Abstract: This paper provides a thorough comparative analysis of discretization techniques commonly utilized in digital control applications for DC-DC boost converters (DBCs). Given the crucial role of DC-DC converters in various industries such as renewable energy systems, electric vehicles, and portable electronic devices, it is imperative to optimize their performance through efficient digital control. This study aims to improve the understanding of the effects of discretization methods on control system behaviour. It investigates their impact on the performance, stability and accuracy of control algorithms in the context of DBC, using dSPACE real-time interface (RTI) and hardware-in-the-loop (HIL) simulation for validation. This approach replicates real-world conditions, allowing performance to be evaluated in a controlled environment. The analysis examines behaviour in the time and frequency domains, providing insight into the strengths and weaknesses of each method. Experimental validation using MATLAB/Simulink/Stateflow on dSPACE RTI 1007 processor, DS2004 high-speed A/D and CP4002 timing and digital I/O boards ensures that the comparative analysis provides practical benefits for DBC digital control applications.
Keywords: Nonlinear systems, DC-DC boost converter, Discretization techniques, Internal distorting delays, Effective sample time determination
College: Faculty of Science and Engineering
Issue: 20
Start Page: e39591

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