Speed sensorless vector control of induction motor based on the MRAS theory

Author

Yaonan, Wang ; Jiantao, Lu ; Shoudao, Huang ; Sihai, Qiu

Author_Institution

Coll. of Electr. & Inf. Eng., Hunan Univ., China

Volume

2

fYear

2004

fDate

14-16 Aug. 2004

Firstpage

645

Abstract

In order to improve the reliability and adaptability of control system induction motor, a speed sensorless vector control system for induction motor based on DSP (TMS320F240) is presented. Combined with a rotor flux and speed observer based on a PI model reference adaptive system (MRAS), a speed sensorless field-oriented control (FOC) system for induction motors is introduced. The motor speed is estimated based on the difference between two flux estimators. The proposed control method, simulations, implementation data, and test results are given and show the good performance for the vector control system in torque, speed and robustness.

Keywords

PI control; control engineering computing; digital signal processing chips; electric machine analysis computing; induction motors; machine vector control; model reference adaptive control systems; observers; reliability; robust control; rotors; torque control; velocity control; DSP; PI model reference adaptive system; TMS320F240; field-oriented control system; induction motor; motor speed sensorless vector control; rotor flux; speed observer;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International

Conference_Location

Xi´an

Print_ISBN

7-5605-1869-9

Type

conf

Filename

1375643