Speed Sensorless Vector Control of Induction Motor Based on Full-Order Flux Observer

Author

Wu, Shanshan ; Li, Yongdong ; Zheng, Zedong

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing

Volume

3

fYear

2006

fDate

14-16 Aug. 2006

Firstpage

1

Lastpage

4

Abstract

This paper presents a DSP-based speed sensorless field oriented vector control system for induction motor. A full-order adaptive observer with stator current and rotor flux as its state variables is used here to estimate the rotor speed. Moreover, the stator resistance is also identified to update the stator resistance value used in the observer so that the rotor speed can be estimated accurately at low speeds. By using the proposed full-order flux observer, the drive system can operate well in a wide range of speed. The validity of the proposed method is confirmed by numerical simulations. Then a prototype is setup and experiments based on a DSP TMS320F2812 prove the excellent performances of the presented control algorithm

Keywords

induction motors; machine vector control; observers; rotors; DSP TMS320F2812; full-order flux observer; induction motor; rotor speed; speed sensorless vector control; Adaptive control; Induction motors; Machine vector control; Numerical simulation; Observers; Programmable control; Prototypes; Rotors; Stators; Voltage; full-order adaptive observer; induction motor; speed sensorless; vector control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International

Conference_Location

Shanghai

Print_ISBN

1-4244-0448-7

Type

conf

DOI

10.1109/IPEMC.2006.4778330

Filename

4778330