A system for protecting a vehicle inverter from overvoltage includes a first inverter having switching elements and converting energy from an energy storage device into AC power. A first motor is driven by receiving the converted AC power. A second inverter is connected in parallel with the first inverter, includes a switching elements, and converts energy from the energy storage device into AC power. A second motor is driven by receiving the converted AC power. A first capacitor is connected in parallel between the first inverter and the energy storage device and stores electric energy of the first motor during regenerative braking. A controller turns off a relay connecting the energy storage device and the motor when a voltage of the first capacitor is equal to or greater than a predetermined voltage and operates the switching elements in the inverters in response to first and second current commands.


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    Title :

    System and method for protecting inverter in vehicle from overvoltage


    Contributors:

    Publication date :

    2023-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / 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



    System and method for protecting inverter in vehicle from overvoltage

    CHON CHAE DUCK / HAN NAM KOO | European Patent Office | 2022

    Free access

    SYSTEM AND METHOD FOR PROTECTING INVERTER IN VEHICLE FROM OVERVOLTAGE

    CHON CHAE DUCK / HAN NAM KOO | European Patent Office | 2021

    Free access

    SYSTEM AND METHOD FOR PROTECTING INVERTER IN VEHICLE FROM OVERVOLTAGE

    CHON CHAE-DUCK / HAN NAM KOO | European Patent Office | 2021

    Free access

    SYSTEM AND METHOD FOR PROTECTING INVERTER IN VEHICLE FROM OVERVOLTAGE

    CHON CHAE-DUCK / HAN NAM-KOO | European Patent Office | 2021

    Free access

    SYSTEM AND METHOD FOR PROTECTING INVERTER IN VEHICLE FROM OVERVOLTAGE

    CHON CHAE DUCK / HAN NAM KOO | European Patent Office | 2021

    Free access