A New Approach to Examine the Dynamics of Switched-Mode Step-Up DC–DC Converters—A Switched State-Space Model

Adam Tomaszuk and Kamil Borawski ()
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Adam Tomaszuk: Department of Automatic Control and Robotics, Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland
Kamil Borawski: Department of Automatic Control and Robotics, Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland

Energies, 2024, vol. 17, issue 17, 1-13

Abstract: Power electronic converters are important elements of many modern devices. Therefore, there is a need for a thorough analysis of their behavior and the ability to properly control them. Typically, the converter’s dynamics are investigated using the small-signal averaging method, which does not provide detailed information about the converter. In particular, it does not account for the switching ripple effect. In this paper, a novel switched state–space model of the interleaved step-up DC–DC converter is introduced. That model incorporates high-frequency information, which allows for a more in-depth dynamics analysis. The results, i.e., step and frequency responses, obtained from both theoretical models are compared to the interleaved step-up DC–DC converter model implemented in PSpice ver. 16.6 from Cadence Design Systems.

Keywords: interleaved step-up DC–DC converter; dynamics; switched state–space model; step response; frequency response (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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