The paper presents an original methodology to solve the problems of vector control degradation, due to the changes of motor electrical parameters, and the inadequate rejection of external disturbances and load variations, in induction motor drives. The solution of the first problem is reached by using a new algorithm, based on the extended Kalman filter (EKF) theory, for the contemporaneous estimation of rotor flux components and motor electrical parameters. Insensitivity to external disturbances and load variations is obtained by designing two fuzzy logic controllers (FLC) for the rotor flux and speed regulation loops. The inherent non-linear characteristics of the fuzzy controllers make it possible to obtain fast and accurate tracking of rotor flux and speed references in presence of varying load conditions, changes of mechanical parameters, process nonlinearities, and inaccuracy in the process modelling.

Robust Control of Vector-Controlled Induction Motor Drives

STASI, Silvio;CUPERTINO, Francesco
1998

Abstract

The paper presents an original methodology to solve the problems of vector control degradation, due to the changes of motor electrical parameters, and the inadequate rejection of external disturbances and load variations, in induction motor drives. The solution of the first problem is reached by using a new algorithm, based on the extended Kalman filter (EKF) theory, for the contemporaneous estimation of rotor flux components and motor electrical parameters. Insensitivity to external disturbances and load variations is obtained by designing two fuzzy logic controllers (FLC) for the rotor flux and speed regulation loops. The inherent non-linear characteristics of the fuzzy controllers make it possible to obtain fast and accurate tracking of rotor flux and speed references in presence of varying load conditions, changes of mechanical parameters, process nonlinearities, and inaccuracy in the process modelling.
EPE-PEMC '98 - 8th International Power Electronics & Motion Control Conference
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/20039
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact