04-06-2012, 05:29 PM
Novel Direct Torque Control Based on Space Vector Modulation With Adaptive Stator Flux Observer for Induction Motors
Novel Direct Torque Control Based on Space Vector .pptx (Size: 343.14 KB / Downloads: 4)
INTRODUCTION
Direct torque control based on space vector modulation (DTC-SVM) preserve DTC transient merits, furthermore, produce better quality steady-state performance
In a wide speed range, at each cycle period, SVM technique is used to obtain the reference voltage space vector to exactly compensate the
flux and torque errors.
SVM-DTC technique based on input-output linearization control scheme for induction machine drives is developed.
A robust full-order speed adaptive stator flux observer is designed for a speed sensor less DTC-SVM system and a speed-adaptive law
conclusion
A novel DTC-SVM scheme has been developed for the IM drive system, which is on the basis of input-output linearization control.
In this control method, a SVPWM inverter is used to feed the motor, the stator voltage vector is obtained to fully compensate the stator flux and torque errors.
Furthermore, a robust full-order adaptive flux observer is designed for a speed sensorless DTC-SVM system. The stator flux and speed are estimated synchronously.
