Rotor Speed Identification Using Two Nonlinear Observers for Induction Motor Drive

Author(s):  
Moulay Rachid Douiri ◽  
Mohamed Cherkaoui ◽  
Ahmed Essadki ◽  
Sidi Mohamed Douiri
2011 ◽  
Vol 383-390 ◽  
pp. 352-357
Author(s):  
Li Yong Yang ◽  
Liu Shuo

This paper proposes an analysis of the vector-controlled induction-motor (IM) drive with a novel modelreference adaptive system (MRAS)-type rotor speed estimator .In this scheme which stator-current-error-based MRAS is used instead of the rotor-flux-error-based MRAS scheme,an stator-current-error-based MRAS is used for estimate the IM rotor speed ,and this is used as feedback signals for the indirect field oriented control technique (IFOC),which is a widely used control method for Induction Motor drive (IM). For improving the dynamic characteristic of the system, it is very improtant for vector control to proceed parameter tuning.Some experimental results based on TMS 320F2812 DSP are provided to verify the proposed system performance in a low speed at no-load and load conditions.


Author(s):  
Oleg Shonin ◽  
◽  
Nikita Novozhilov ◽  
Sergei Kryltsov ◽  
◽  
...  

Author(s):  
Benheniche Abdelhak ◽  
Bensaker Bachir

<p>In this paper a sensorless Backstepping control scheme for rotor speed and flux control of induction motor drive is proposed. The most interesting feature of this technique is to deal with non-linearity of high-order system by using a virtual control variable to render the system simple. In this technique, the control outputs can be derived step by step through appropriate Lyapunov functions. A high gain observer is performed to estimate non available rotor speed and flux measurements to design the full control scheme of the considered induction motor drive. Simulation results are presented to validate the effectiveness of the proposed sensorless Backstepping control of the considered induction motor.</p>


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