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<p>Demand for low-cost and lightweight chargers for electric vehicles led to the development of onboard integrated battery chargers (IBCs). Among various topologies, Single-phase single-stage converters are preferred due to their wide supply compatibility and compact design. However, they exhibit second-order harmonics in output currents and struggle to achieve high voltage gains. To mitigate these challenges, this paper proposes a reconfigurable single-phase, single-stage IBC. It leverages propulsion components, utilizing motor winding inductance for harmonic suppression and modular charging to reduce high voltage requirements. A 2.2 kW prototype demonstrates almost unity power factor operation with low total harmonic distortion <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="40009_2025_1790_Article_IEq1.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="48" /> </InlineMediaObject> <EquationSource Format="TEX">\((3.1\%)\)</EquationSource> </InlineEquation> and output ripple <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="40009_2025_1790_Article_IEq2.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="56" /> </InlineMediaObject> <EquationSource Format="TEX">\((3.04\%)\)</EquationSource> </InlineEquation>. The working of the proposed topology, along with the results obtained is discussed in this article.</p>

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A Reconfigurable Single-Phase Single-Stage Integrated Battery Charger for Modular Charging of High-Voltage Batteries in Electric Vehicles with Second-Order Harmonic Component Suppression

  • 期刊论文

  • 发表日期：

    2025年9月4日

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  • Jojin Thomas,
  • A. Venkadesan,
  • M. Vishvanath

摘要

Demand for low-cost and lightweight chargers for electric vehicles led to the development of onboard integrated battery chargers (IBCs). Among various topologies, Single-phase single-stage converters are preferred due to their wide supply compatibility and compact design. However, they exhibit second-order harmonics in output currents and struggle to achieve high voltage gains. To mitigate these challenges, this paper proposes a reconfigurable single-phase, single-stage IBC. It leverages propulsion components, utilizing motor winding inductance for harmonic suppression and modular charging to reduce high voltage requirements. A 2.2 kW prototype demonstrates almost unity power factor operation with low total harmonic distortion \((3.1\%)\) and output ripple \((3.04\%)\) . The working of the proposed topology, along with the results obtained is discussed in this article.