Experimental High-Performance Control of Two Permanent Magnet Synchronous Machines in an Integrated Drive for Automotive Applications

Closed-loop control of an integrated dual-inverter to drive two permanent magnet motors independently is presented and evaluated experimentally. By utilizing the neutral point of the three-phase main motor, only two inverter legs are needed for the two-phase auxiliary motor. A modified field oriented control scheme for this integrated inverter was introduced and employed in real-time control. Experimental results show that the inverter is able to control two drives independently. An integrated, component-count-reduced drive is achieved.