A boot-strap estimator for joint flux and parameters online identification for ...

• Author(s): Leite, V. ; Araújo, R. ; Freitas, D.
• Date: 2003
• Persistent ID: http://hdl.handle.net/10198/2215
• Origin: Biblioteca Digital do IPB
• Subject(s): Induction motors; Estimation techniques; Variable speed drives; Adaptive control
• Document Type: Article
• Language: English

Description

This paper presents a new approach for joint rotor flux and electrical parameters on-line identification in vector controlled high-performance induction motor drives based on a boot-strap estimator that uses a reduced order extended Kalman filter for rotor flux components and rotor parameters estimation and a recursive prediction error method for stator parameters estimation. Within the prediction error method some approaches are used and compared that affect both the adaptation gain and the direction in which the updates of stator parameters are made. The induction motor model structures are described in the rotor reference frame in order to reduce the computational effort by using a higher sampling time interval.