| Abstract |
The paper presents practical implementation results of three full-order extended Luenberger observers (FELOs) for joint state and parameter estimation of a PWM induction motor drive. Ob-I is for joint rotor time constant and rotor flux estimation, Ob-II for joint shaft speed and rotor flux estimation, and Ob-Ill for joint shaft speed, load torque as well as rotor flux estimation. The advantages of FELOs over extended Kalman filters are pointed out. The results show that the extended Luenberger observers are able to work satisfactorily in practical industry environment, generating the estimates with fast dynamics. |
