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 :

    2021-10-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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



    SYSTEM AND METHOD FOR PROTECTING INVERTER IN VEHICLE FROM OVERVOLTAGE

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

    Free access

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

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    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

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