A robust rotor flux observer of induction motor with unknown rotor and stator resistance

被引：2
|
作者：
Lin, F [1 ]
Zhang, CP [1 ]
Song, WC [1 ]
Chen, SS [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing, Peoples R China
来源：
IECON'03: THE 29TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1 - 3, PROCEEDINGS | 2003年
关键词：
induction motor drives; flux observer; Extended State Observer;
D O I：
10.1109/IECON.2003.1280074
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The perturbation of the motor parameters degrades the flux observer and the controller. This paper proposes a novel robust flux observer with the resistance uncertainty taken into account. By Extended State Observer (ESO) method, which extends the entire disturbance to a new state, the rotor flux and the variation of rotor resistance are obtained. This is a new kind of state observer constructive method with a special nonlinear and non-smooth feedback. For the variable stator resistance, a simple self-tuning law is designed, which is derived from the dynamic model of the induction motor. The stator resistance value is updated in the ESO. Simulations at high and low frequency illustrate the robustness of the presented method.
引用
收藏
页码：738 / 741
页数：4
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