Adaptive Rotor Flux Observer Research Articles

Deadbeat flux level control of direct‐field‐oriented induction motor

AbstractA method for the deadbeat flux level control of a direct‐field‐oriented induction motor with position control loop has been developed that employs an adaptive rotor flux observer. The observer is a full‐order type and is used not only in the direct‐field‐oriented controller, but also to identify stator and rotor resistances of the motor. The observer reduces the sensitivity of a deadbeat controller to fluctuations in the motor parameters. The main advantage of this method is that it improves the efficiency of an induction motor without sacrificing dynamic performance.This paper describes the method as well as the fundamental characteristics of the system derived from experimental and simulation results.

Deadbeat Flux Level Control of Direct-Field-Oriented Induction Motor.

A method for the deadbeat flux level control of a direct-field-oriented induction motor with position control loop has been developed that employs an adaptive rotor flux observer. The observer is a full-order type and is used not only in the direct-field-oriented controller, but also to identify stator and rotor resistances of the motor. The observer reduces the sensitivity of a deadbeat controller to fluctuations in the motor parameters. The main advantage of this method is that it improves the efficiency of an induction motor without sacrificing dynamic performance. This paper describes the method as well as the fundamental characteristics of the system derived from experimental and simulation results.

Deadbeat flux level control of direct-field-oriented high-horsepower induction servo motor using adaptive rotor flux observer

A flux level deadbeat control of direct field oriented high-power induction servo motor drives using an adaptive rotor flux observer is presented. In this system, an adaptive rotor flux observer of a full-order type is used not only to construct the direct field oriented controller but also to identify the stator and rotor resistances of the servo motor. The rotor flux observer is used to reduce the sensitivity of a deadbeat controller to parameter sensitivity. The fundamental characteristics of this system are discussed on the basis of experimental and simulation results. The induction servo motor drive system employing this method is used to improve the efficiency of an induction servo motor without sacrificing dynamic performance. >