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INVERTER SYSTEM FOR VEHICLE

  • US 20200059190A1
  • Filed: 11/07/2018
  • Published: 02/20/2020
  • Est. Priority Date: 08/17/2018
  • Status: Active Grant
First Claim
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1. An inverter system for a vehicle, comprising:

  • an energy storage configured to store electrical energy;

    a first inverter that includes a plurality of first switching devices and configured to convert energy stored in the energy storage into alternating current (AC) power;

    a second inverter that includes a plurality of second switching devices that are different in type from the first switching devices, and is connected to the energy storage in parallel with the first inverter, and configured to convert the energy stored in the energy storage into AC power;

    a motor driven by the AC power converted by the first inverter and the second inverter; and

    a controller configured to generate a pulse-width modulation (PWM) signal based on required output of the motor and configured to operate the motor by inputting the generated PWM signal to at least one of the first inverter or the second inverter,wherein the first switching devices are silicon carbide-field effect transistors (SiC-FET) and the second switching devices are silicon-insulated gate bipolar transistors (Si-IGBT).

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