High-Performance Control of Two Three Phase Permanent Magnet Synchronous Machines in an Integrated Inverter for Automotive Applications

The closed loop DSP control of an integrated dual inverter, able to independently drive two three-phase permanent magnet motors, is presented. By utilizing the neutral point of the main traction motor, only two inverter legs are needed for the three-phase auxiliary motor. Utilizing this topology one inverter leg is eliminated and an integrated, reduced component count drive is achieved.