Four-legged PWM inverters feeding two induction motors for a vehicle drive application

This paper presents two four-legged inverters feeding two induction machines. The first one utilises common legs for both motors. The second uses a common point of connection. An adequate control is developed and permits to obtain two three-phase voltage system on the machines. In a mobile robot application, these two structures allow the generation of trajectories. The experimental results of the common legs system are shown