In a converter system having an AC/DC converter, and a method for operating a converter system, in which the terminal of the AC/DC converter on the direct-voltage side feeds a series circuit, which has a braking resistor and a controllable switch, the terminal of a DC/AC converter, in particular an inverter, on the direct-voltage side being connected in parallel to the series circuit. The output signal of a voltage-acquisition device is supplied to an evaluation unit, which generates a control signal for the controllable switch. The evaluation unit includes a device for determining the electric power supplied to the braking resistor, in particular from the intermediate circuit, which is determined by the device from the output signal of the voltage-acquisition device, in particular. The output signal of the device is supplied to a controller, in particular a linear controller, and the controller controls its set value toward the output signal of the device. The controller in particular has a linear controller element, in particular a PI controller element or integration element, whose set value, i.e. whose output signal, is forwarded to a difference generator for determining the difference between the set value and the value of the electric power, the set value being supplied, directly or via a limiter, to a parameterizable filter, whose output signal is supplied to a switching element, which in particular generates an output signal for opening or closing the controllable switch as a function of the exceeding or undershooting of a threshold value.


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    Titel :

    CONVERTER SYSTEM HAVING AN AC/DC CONVERTER, AND METHOD FOR OPERATING A CONVERTER SYSTEM


    Beteiligte:
    STARK MARCEL (Autor:in)

    Erscheinungsdatum :

    2021-03-11


    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 / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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