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<p>Optimizing onboard battery chargers becomes a crucial task as the transportation industry embraces more electric vehicles (EVs). In order to increase battery life, reduce energy consumption, and guarantee operational safety, efficient charging procedures are essential. In this work, an Integral Backstepping Control (IBSC) for an onboard charger system with a two-phase interleaved DC–DC bidirectional converter and a grid-connected bidirectional AC–DC converter is presented. We evaluate how well the IBSC performs in comparison to proportional integral (PI) control, backstepping control (BSC), integral sliding mode control (ISMC), and conventional sliding mode control (CSMC). Performance gains over conventional DC–DC converters are assessed in our investigation, which focuses on the interleaved DC–DC converter. According to simulation data, the charging process is much improved in terms of accuracy, efficiency, and power quality when the IBSC and interleaved converter are integrated. Notably, the IBSC has a high power factor, decreased total harmonic distortion (THD) in accordance with IEEE 519-2014, and better static and dynamic performance as shown by the ISE and IAE metrics. Additionally, compared to traditional converters, the two-phase interleaved converter design significantly lowers current and voltage ripple at the battery, demonstrating the promise of sophisticated control strategies in electric vehicle charging technology.</p>

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Robust control of bidirectional onboard charger based interleaved DC–DC converter

  • 期刊论文

  • 发表日期：

    2025年11月20日

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  • Khadija Oualifi,
  • Hassan Abouobaida,
  • Youssef Mchaouar,
  • Ambe Harrison,
  • Abdelmoghit Fathelkhair,
  • Hajar Akli,
  • Younes Abouelmahjoub

摘要

Optimizing onboard battery chargers becomes a crucial task as the transportation industry embraces more electric vehicles (EVs). In order to increase battery life, reduce energy consumption, and guarantee operational safety, efficient charging procedures are essential. In this work, an Integral Backstepping Control (IBSC) for an onboard charger system with a two-phase interleaved DC–DC bidirectional converter and a grid-connected bidirectional AC–DC converter is presented. We evaluate how well the IBSC performs in comparison to proportional integral (PI) control, backstepping control (BSC), integral sliding mode control (ISMC), and conventional sliding mode control (CSMC). Performance gains over conventional DC–DC converters are assessed in our investigation, which focuses on the interleaved DC–DC converter. According to simulation data, the charging process is much improved in terms of accuracy, efficiency, and power quality when the IBSC and interleaved converter are integrated. Notably, the IBSC has a high power factor, decreased total harmonic distortion (THD) in accordance with IEEE 519-2014, and better static and dynamic performance as shown by the ISE and IAE metrics. Additionally, compared to traditional converters, the two-phase interleaved converter design significantly lowers current and voltage ripple at the battery, demonstrating the promise of sophisticated control strategies in electric vehicle charging technology.