| Abstract |
Speed-sensorless field oriented control of an induction motor is implemented on a 16-bit micro-controller using the machine as a reference model for a speed adaptation algorithm. The combination with a flux observer allows to determine adaptation parameters and improves robustness in the area of low stator frequencies, compared to a feed-forward flux model. Thus, good performance is achieved even in the very low speed region. To ensure field orientation around zero stator frequency, an additional algorithm based on the magnetic saturation of the
motor is proposed. |
