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Sensorless vector and direct torque control
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TLDR
This paper presents a space-phasor model of A.C. machines based on artificial intelligence-based steady-state and transient analysis of electrical machines, estimators and investigates the role of magnetic saturation in the control of these machines.Abstract:
1. Introduction 2. The space-phasor model of A.C. machines 3. Vector and direct torque control of synchronous machines 4. Vector and direct torque control of induction machines 5. Torque control of switched reluctance motors 6. Effects of magnetic saturation 7. Artificial intelligence-based steady-state and transient analysis of electrical machines, estimators 8. Self-commissioning Indexread more
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Proceedings ArticleDOI
Robust speed-sensorless induction motor drive for traction applications
TL;DR: The speed adaptation mechanism in the MRAS-type speed and flux estimator has been improved and the speed estimator is extended with the magnetizing reactance estimator, over the wide range of the motor speed changes.
Journal ArticleDOI
Neural speed estimator for line-connected induction motor embedded in a digital processor
TL;DR: The use of artificial neural networks to estimate rotor speed by using current sensors for balanced and unbalanced voltage sources with a wide mechanical load range in a line-connected induction motor is proposed.
Proceedings ArticleDOI
A Vector-Control System Based on the Improved MRAS for PMSM
Huazhong Xu,Jun Xie +1 more
TL;DR: In this article, a vector-control system of the improved Model Reference Adaptive System (MRAS) based on speed positive feedback can improve the performance of the permanent magnet synchronous motor (PMSM).
Proceedings ArticleDOI
Model based torque estimation of Permanent Magnet Synchronous Machines
A. Zentai,Tamás Dabóczi +1 more
TL;DR: In this paper, a model-based machine torque estimation method was used in electronic power assisted steering systems. But this technique can also be used to detect machine failures and verify the failure of the machine current measurement sensors.
Proceedings ArticleDOI
Analysis and design of rotor MRAS speed sensorless with a novel approach
TL;DR: In this article, a modified MRAS for induction motors is presented, which is associated with vector control, and the speed estimation performances are improved especially at low speed, where Lyapunov theory based controllers are used to design the controllers of the vector control.