Reduced-Order Flux Observers With Stator-Resistance Adaptation for Speed-Sensorless Induction Motor Drives

被引：116

作者：

Hinkkanen, Marko ^{[1
]}

Harnefors, Lennart ^{[2
]}

Luomi, Jorma ^{[1
]}

机构：

[1] Helsinki Univ Technol, Dept Elect Engn, FI-02015 Espoo, Finland

[2] ABB Power Syst, PSDC DCTU, SE-77180 Ludvika, Sweden

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2010年 / 25卷 / 05期

基金：

芬兰科学院;

关键词：

Flux observer; speed sensorless; stability conditions; stator-resistance estimation; FIELD-ORIENTED CONTROL; STABILITY ANALYSIS; MACHINE DRIVES; DESIGN;

D O I：

10.1109/TPEL.2009.2039650

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper deals with reduced-order flux observers with stator-resistance adaptation for speed-sensorless induction motor (IM) drives. A general analytical solution for the stabilizing observer gain is given. The gain has two free positive parameters (which depend on the operating point), whose selection significantly affects the damping, convergence rate, robustness, and other properties of the observer. The general stability conditions for the stator-resistance adaptation are derived. An observer design is proposed that yields a robust and well-damped system and requires a minimal amount of tuning work. The proposed observer design is experimentally tested using a 45-kW IM drive; stable operation at very low speeds under different loading conditions is demonstrated.

引用

页码：1173 / 1183

页数：11

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