Citation:
Abstract:
In this paper, an improved PI (proportional integral) stator resistance estimation for a DTC(direct torque controlled) induction motor is proposed. This estimation method is based on
an on-line stator resistance correction regarding the variations of the stator current
estimation error. In fact, the input variable of the PI estimator is the stator current estimation
error. The main idea is to tune accurately the stator resistance value relatively to the
evolution of the stator current estimation error gradient to avoid the drive instability and …