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.
SYSTEM AND METHOD FOR PROTECTING INVERTER IN VEHICLE FROM OVERVOLTAGE
07.10.2021
Patent
Elektronische Ressource
Englisch
SYSTEM AND METHOD FOR PROTECTING INVERTER IN VEHICLE FROM OVERVOLTAGE
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Europäisches Patentamt | 2021
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