An on-line method for tracking the rotor time constant of an induction machine

被引：4

作者：

Wang, KY ^{[1
]}

Chiasson, J ^{[1
]}

Bodson, M ^{[1
]}

Tolbert, LM ^{[1
]}

机构：

[1] Univ Tennessee, ECE Dept, Knoxville, TN 37996 USA

来源：

ACC: PROCEEDINGS OF THE 2005 AMERICAN CONTROL CONFERENCE, VOLS 1-7 | 2005年

关键词：

induction motor; rotor time constant; parameter identification; resultants;

D O I：

10.1109/ACC.2005.1470383

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Field-oriented control methodology requires knowledge of the machine parameters and, in particular, the rotor time constant. The interest here is in tracking the value of T-R as it changes due to ohmic heating so that an accurate value is available to estimate the rotor flux linkages for a field-oriented controller. The approach presented here uses a nonlinear least-squares approach using measurements of the stator currents and voltages along with the rotor speed. The nature of this technique lends itself directly to an online implementation and therefore can be used to track the rotor time constant. Experimental results are presented to demonstrate the validity of the approach.

引用

页码：2739 / 2744

页数：6

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