ORIGINAL RESEARCH article
Front. Energy Res.
Sec. Electrochemical Energy Storage
This article is part of the Research TopicAdvances in Battery TechnologiesView all 4 articles
Robust H-Infinity Control of a Two-Phase Interleaved Boost Converter for Second-Life Battery Integration in Battery Energy Storage Systems
Provisionally accepted
- 1Jouf University College of Engineering, Sakaka, Saudi Arabia
- 2Prince Sattam bin Abdulaziz University College of Engineering, Al Kharj, Saudi Arabia
- 3Yanbu Industrial College, Yanbu, Saudi Arabia
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Integrating second-life batteries (SLBs) into energy storage systems (ESSs) offers a sustainable and cost-effective solution for extending battery utility. However, the inherent uncertainties and performance variations of these aged batteries present significant challenges in maintaining system stability and efficiency. Hence, this work introduces a robust control strategy employing an H-infinity (H∞) controller to regulate a two-phase interleaved boost (IBC) converter interfacing SLBs. The IBC topology effectively steps up the output voltage of SLBs while reducing current ripple and enhancing overall system performance. Also, the developed H∞ control, combined with the IBC, ensures resilience against system uncertainties and load variations, which are common in applications involving SLBs. Extensive simulation results demonstrate that the proposed H∞ control achieves robust output voltage during transient and parameters uncertainties, when compared to classical PI controller. This validates the proposed system suitability for integrating SLBs into modern battery energy storage applications. The proposed H∞ controller demonstrated over 50% reduction in steady-state output ripples across various tested conditions, exhibited strong robustness under severe parameter mismatches, and achieved over 40% faster dynamic response compared to the conventional PI controller.
Keywords: Interleaved boost converter (IBC), Second-Life Battery (SLB), Energy Storage System (ESS), Grid integration, H-infinity control
Received: 20 Aug 2025; Accepted: 30 Sep 2025.
Copyright: © 2025 ALHOSAINI, Aldosari and Baatyah. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Obaid Aldosari, om.aldosari@psau.edu.sa
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