The invention relates to a method for operating a current converter, in particular of an electric machine, in which, for the or for each semiconductor switch of the current converter, a control signal (P′) for setting a switch-off speed (Anew) is generated, wherein an electric intermediate circuit voltage (Udc) of an intermediate circuit is measured and compared to a voltage threshold value (Uthresh), wherein an operating temperature (TB) of the respective semiconductor switch is measured and compared to a temperature threshold value (Tthresh), wherein a load current (Ic) switched by means of the respective semiconductor switch is measured and compared to a current threshold value (Ithresh), and wherein the control signal (P′) for setting the switch-off speed (Anew) is generated on the basis of the comparisons.


    Access

    Download


    Export, share and cite



    Title :

    Method for operating a current converter and current converter operating according to said method


    Contributors:
    GU QIONG (author) / HOFFMANN HOLGER (author) / SLAVIK THOMAS (author)

    Publication date :

    2020-07-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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 / H03K PULSE TECHNIQUE , Impulstechnik



    METHOD FOR OPERATING A CURRENT CONVERTER AND CURRENT CONVERTER OPERATING ACCORDING TO SAID METHOD

    GU QIONG / HOFFMANN HOLGER / SLAVIK THOMAS | European Patent Office | 2019

    Free access


    METHOD FOR OPERATING DC-DC CONVERTER

    DANIEL SPESSER | European Patent Office | 2016

    Free access

    CONVERTER AND METHOD FOR OPERATING SAME

    SCHIERLING HUBERT | European Patent Office | 2015

    Free access

    Converter and method for operating same

    SCHIERLING HUBERT | European Patent Office | 2018

    Free access