Design of speed adaptation law in sensorless control of induction motor in regenerating mode
In this paper, we propose a feedback gain design method for the full-order flux observer with adaptive speed loop, that minimizes the instability region of an adaptive speed estimator to a line in the torque/speed plane. We analyze its convergence performance and propose a pole assignment method allowing to take into account dynamics constraints and stability in regenerating mode at low speed. Simulations results are presented in order to validate the proposed design.
regenerating mode induction motor drive adaptive observer stabilizing pole assignment design