Inverter system for vehicle and control method thereof

An inverter system for a vehicle, comprising:

• an energy storage storing electrical energy;
• a first inverter including a plurality of first switches and converting the energy stored in the energy storage into AC power;
• a second inverter including a plurality of second switches, which are different from the first switches, the second inverter converting the energy stored in the energy storage into AC power, and connected in parallel with the first inverter to the energy storage;
• a motor driven by AC power converted through the first inverter and the second inverter;
• and
• a controller for controlling operations of the first inverter and the second inverter based on power requirements of the motor,
• wherein the plurality of first switches are silicon carbide field effect transistors (SiC-FETs), and the plurality of second switches are silicon-insulated gate type bipolar transistors (Si-IGBTs), and
• wherein the controller controls the plurality of first switches to drive the first inverter when the power requirements of the motor are lower than a preset power value.