Analysis of LLC Converters in ISOP-Systems with Iterative First Harmonic Approximation

Breidenstein D, Blamberger L, Dürbaum T (2025)

Publication Type: Conference contribution

Publication year: 2025

Publisher: Mesago PCIM GmbH

Pages Range: 2221-2228

Conference Proceedings Title: PCIM Europe Conference Proceedings

Event location: Nuremberg DE

ISBN: 9783800765416

DOI: 10.30420/566541294

Abstract

An input-series and output-parallel connection of DC-DC converters enables the extension of voltage and power capabilities for available power semiconductors. The inherent balancing characteristic ensures equal power distribution when controlling all modules with a common control signal. However, parameter tolerances cause mismatches. To study their impact in a system consisting of LLC converters, this paper presents a new method based on iterative first harmonic approximation. The power distribution between two LLC converters within the ISOP-system is derived for estimated tolerances. A test setup consisting of two GaN-based LLC converters with an intentionally caused parameter mismatch verifies the new model.

Authors with CRIS profile

Daniel Breidenstein Lehrstuhl für Optoelektronik Thomas Dürbaum Professur für Elektromagnetische Felder

How to cite

APA:

Breidenstein, D., Blamberger, L., & Dürbaum, T. (2025). Analysis of LLC Converters in ISOP-Systems with Iterative First Harmonic Approximation. In PCIM Europe Conference Proceedings (pp. 2221-2228). Nuremberg, DE: Mesago PCIM GmbH.

MLA:

Breidenstein, Daniel, Lukas Blamberger, and Thomas Dürbaum. "Analysis of LLC Converters in ISOP-Systems with Iterative First Harmonic Approximation." Proceedings of the 2025 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2025, Nuremberg Mesago PCIM GmbH, 2025. 2221-2228.

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