Inner loop Current Control Techniques for Speed controlled Double Inverter fed Wound Rotor Induction Motor Drive

The growing electrification of transport has prompted researchers to examine control methods for various electric machines. One such machine is double-inverter fed wound rotor induction machine (DI-WRIM). Field oriented control (FOC), direct torque control (DTC) and current oriented control (COC) techniques are often employed for this machine. Proportional+integral (PI) based FOC is the most popular closed loop control for a DI-WRIM drive. This paper tends to explore the DI-WRIM drive's performance with proportional+resonant control (PR) and hysteresis control. Further, the comparative results are presented for all the techniques. The efficacy of these techniques is validated through suitable simulation and experimental results.