Control of Five Leg Inverter Based Two Motor Drive under Current Sensor Failure

This paper proposes a current sensor fault tolerant (CSFTC) control of the five-leg inverter (FLI) that drives the two induction motors independently. The simulation test validation is carried out when all current sensors or power supplies used for current sensor undergo failure. The proposed solution suggests employing generalized equations that leverage the PWM-generated voltage and the angular speed of the rotor. These equations enable the reconstruction of the stator phase current in the stationary reference frame (α-β).This scheme minimizing the system dependency on sensors in noisy environment. The proposed scheme is verified at different operating states of the drive system through the MATLAB/Simulink platform. The simulation result validate the effectiveness and feasibility of proposed scheme.