An on-board charger (OBC) for using AC power to charge a traction battery of an electric vehicle includes a DC/DC converter and a controller. The converter receives input power including a voltage having a DC voltage component and a voltage ripple varying at a frequency of the AC power. The controller generates a control signal for controlling the converter to convert the input power into an output power having a current for charging the battery. The controller includes a filter which enhances a sensed value of the current at the frequency to generate a locally-enhanced sensed value of the current. The controller determines a difference between a target and the locally-enhanced sensed value of the current and generates the control signal based on the difference such that the converter in converting the input power into the output power in response to the control signal adapts the current to the target.


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    Titel :

    On-board charger (OBC) having grid frequency rejecter



    Erscheinungsdatum :

    08.03.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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