Analysis and design of full-order flux observers for sensorless induction motors

被引：110
|
作者：
Hinkkanen, M [1 ]
机构：
[1] Helsinki Univ Technol, Power Elect Lab, FIN-02015 Espoo, Finland
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2004年 / 51卷 / 05期
关键词：
flux estimation; full-order adaptive observer; induction motor drives; speed sensorless;
D O I：
10.1109/TIE.2004.834964
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper deals with the flux estimation for sensorless induction motor drives. The linearized model of the speed-adaptive full-order flux observer is applied to help choosing the observer gain and the speed-adaptation gains. It is shown that the linearized model reveals potential instability problems that are difficult to find by other means. An observer gain and a method to vary the speed-adaptation gains in the field-weakening region are proposed. Experimental results show stable operation in a very wide speed range.
引用
收藏
页码：1033 / 1040
页数：8
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