A new scheme for sensorless induction motor control drives operating in low speed region

被引：22

作者：

Beguenane, R ^{[1
]}

Ouhrouche, MA

Trzynadlowski, AM

机构：

[1] Univ Quebec Chicoutimi, Dept Appl Sci, Chicoutimi, PQ G7H 2B1, Canada

[2] Univ Nevada, Dept Elect Engn, Reno, NV 89557 USA

来源：

MATHEMATICS AND COMPUTERS IN SIMULATION | 2006年 / 71卷 / 02期

关键词：

induction motor control drives; stator resistance estimation; direct field orientation; Kalman filtem; MRAS;

D O I：

10.1016/j.matcom.2006.01.001

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A novel simple stator resistance estimation technique for high-performance induction motor drives is proposed. It makes use of a synchronously revolving reference frame aligned with the stator current vector, so that the resistance can be straightforwardly derived from the mathematical model of the induction motor. A sensorless direct field orientation scheme is employed to validate the proposed solution, with the drive operating in the critical area of low speeds. A combination of two observers is used: a Kalman filter observer to estimate the rotor flux, and a MRAS observer for speed estimation. The stator resistance estimator alleviates the usual performance degradation of MRAS-based drives at low speeds, caused by the thermal drift of stator resistance. Computer simulations, including realistic disturbances, show high effectiveness of the described approach. (c) 2006 IMACS. Published by Elsevier B.V. All rights reserved.

引用

页码：109 / 120

页数：12

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