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This paper presents a novel method of speed identification of induction motor speed sensorless DTC (direct torque control) based on MRAS (model reference adaptive system). It is difficult to identify speed at low speed and standstill area for traditional MRAS method due to traditional reference model of primitive motor model. The new MRAS speed identification method gains reference model from high...
In the paper, voltage space vector modulation technology is used for fuzzy direct torque control of AC induction motor with fuzzy stator resistance estimator, which can weaken the ripple of torque and flux of fuzzy direct torque control system, therefore the control system get swifter response velocity, stronger robustness and higher precision of velocity control. The computer simulated results verify...
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