Fig. 10From: Sliding mode approach applied to sensorless direct torque control of cage asynchronous motor via multi-level inverterHarmonic spectra of the stator current (A) (a) for M-DTC with a three-level NPC inverter, (b) for SM-DTC with a two-level inverter and (c) for PI-DTC with a three-level NPC inverterBack to article page