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Design Optimization and Control System of a 3-Phase T-Type Active Front End for Bi-Directional Charging Technologies for Electric Vehicles.

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Title: Design Optimization and Control System of a 3-Phase T-Type Active Front End for Bi-Directional Charging Technologies for Electric Vehicles.
Authors: Polat, Hakan1,2 (AUTHOR), Geury, Thomas1,2 (AUTHOR), El Baghdadi, Mohamed1,2 (AUTHOR), Hegazy, Omar1,2 (AUTHOR) omar.hegazy@vub.be
Source: Energies (19961073). Feb2026, Vol. 19 Issue 3, p656. 25p.
Subject Terms: *Genetic algorithms, *Power electronics, *Electrical load, *Wide gap semiconductors, *Electric vehicles, *Supervisory control systems, *Mathematical optimization
Abstract: Most electric vehicles use 400 V batteries, while some companies are moving to 800 V to reduce current in electric drives. More cars are expected to adopt 800 V at the DC terminals of the batteries, but 400 V will remain common for the duration of this transition, so future off-board chargers must support a wide voltage output range. Silicon carbide switches are used to keep the power–electronics interface compact and scalable. The AC/DC stage of a modular silicon carbide-based interface is designed using a T-type active front end and a dual active bridge. The T-type front end is optimized with a genetic algorithm. The resulting model is used to tune the inner current and outer voltage controllers. Bode analysis shows an inner current loop bandwidth of 4.25 kHz with a phase margin of 53 ° and a gain margin of 30 dB. The outer voltage loop reaches 50 Hz with a phase margin of 108 ° and a gain margin of 33 dB. The controller is implemented on a dSPACE MicroLabBox. Tests show peak efficiency of 98.5% in G2V mode and 98.3% V2G mode. THD stays under 5% above 4 kW and reaches 3% at peak power. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 191587135
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Design Optimization and Control System of a 3-Phase T-Type Active Front End for Bi-Directional Charging Technologies for Electric Vehicles.
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Feb2026, Vol. 19 Issue 3, p656. 25p.
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  Data: *<searchLink fieldCode="DE" term="%22Genetic+algorithms%22">Genetic algorithms</searchLink><br />*<searchLink fieldCode="DE" term="%22Power+electronics%22">Power electronics</searchLink><br />*<searchLink fieldCode="DE" term="%22Electrical+load%22">Electrical load</searchLink><br />*<searchLink fieldCode="DE" term="%22Wide+gap+semiconductors%22">Wide gap semiconductors</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+vehicles%22">Electric vehicles</searchLink><br />*<searchLink fieldCode="DE" term="%22Supervisory+control+systems%22">Supervisory control systems</searchLink><br />*<searchLink fieldCode="DE" term="%22Mathematical+optimization%22">Mathematical optimization</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Most electric vehicles use 400 V batteries, while some companies are moving to 800 V to reduce current in electric drives. More cars are expected to adopt 800 V at the DC terminals of the batteries, but 400 V will remain common for the duration of this transition, so future off-board chargers must support a wide voltage output range. Silicon carbide switches are used to keep the power–electronics interface compact and scalable. The AC/DC stage of a modular silicon carbide-based interface is designed using a T-type active front end and a dual active bridge. The T-type front end is optimized with a genetic algorithm. The resulting model is used to tune the inner current and outer voltage controllers. Bode analysis shows an inner current loop bandwidth of 4.25 kHz with a phase margin of 53 ° and a gain margin of 30 dB. The outer voltage loop reaches 50 Hz with a phase margin of 108 ° and a gain margin of 33 dB. The controller is implemented on a dSPACE MicroLabBox. Tests show peak efficiency of 98.5% in G2V mode and 98.3% V2G mode. THD stays under 5% above 4 kW and reaches 3% at peak power. [ABSTRACT FROM AUTHOR]
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    Identifiers:
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        Value: 10.3390/en19030656
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 25
        StartPage: 656
    Subjects:
      – SubjectFull: Genetic algorithms
        Type: general
      – SubjectFull: Power electronics
        Type: general
      – SubjectFull: Electrical load
        Type: general
      – SubjectFull: Wide gap semiconductors
        Type: general
      – SubjectFull: Electric vehicles
        Type: general
      – SubjectFull: Supervisory control systems
        Type: general
      – SubjectFull: Mathematical optimization
        Type: general
    Titles:
      – TitleFull: Design Optimization and Control System of a 3-Phase T-Type Active Front End for Bi-Directional Charging Technologies for Electric Vehicles.
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            NameFull: Polat, Hakan
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            NameFull: Geury, Thomas
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            NameFull: El Baghdadi, Mohamed
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            NameFull: Hegazy, Omar
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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              Value: 19
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              Value: 3
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            – TitleFull: Energies (19961073)
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