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This paper describes the design of a new algorithm for the rotor resistance adaptation. The obtained adaptive observer is used for the improvement of the vector control of induction motor (IM) drives. The adaptive observer detects the rotor speed and flux components in the stationary reference frame using the stator voltages and currents. Stability analysis based on Lyapunov theory is performed in...
The present work presents a combined estimation of speed and rotor resistance of an induction motor (IM) drive using model reference adaptive system (MRAS). The reactive power is used to generate the error signal for the adaptation mechanism in this MRAS. The reference model consists of the instantaneous reactive power computed by machine reference line current and voltages. Hence, the reference model...
Accurate knowledge of most parameters is important for prices modelling and corrects operation of a number of induction motor control schemes. Stable and accurate operation of control scheme requires an appropriate on-line identification algorithm for the rotor resistance and considering of core loss. In this paper, we propose a full-order flux observer with adaptive speed loop, while core loss and...
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