A. Dittrich, PARAMETER SENSITIVITY OF PROCEDURES FOR ONLINE ADAPTATION OF THE ROTOR TIME CONSTANT OF INDUCTION MACHINES WITH FIELD-ORIENTED CONTROL, IEE proceedings. Electric power applications, 141(6), 1994, pp. 353-359
Procedures for on-line adaptation of the rotor time constant are often
based on error models involving two or more machine parameters. A mis
match between the parameters in the model and in the machine has stron
g influence on the adaptation result and therefore on the quality of t
he field orientation. The parameter sensitivity of four simple adaptat
ion methods is analysed theoretically and investigated by means of sim
ulation studies. A new way to improve the parameter robustness by cons
tructing a vector error signal is shown.