Online rotor time constant identification of induction motors based on lyapunov stability theory

被引：0
|
作者：
Cao P. [1 ]
Zhang X. [1 ]
Yang S. [1 ]
Xie Z. [1 ]
Guo L. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Hefei University of Technology, Hefei, 230009, Anhui Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2016年 / 36卷 / 14期
关键词：
Four quadrant application; Indirect vector control; Lyapunov stability theory; Per-unit; Reactive power; Rotor time constant;
D O I：
10.13334/j.0258-8013.pcsee.151564
中图分类号：
学科分类号：
摘要：
The error in the rotor time constant Tr leads to oriented deviation in rotor flux for induction motor drive with indirect vector control. The effects of Tr error on rotor flux,electromagnetic torque and voltage were analyzed in detail. Then an optimization model of reactive power was presented based on Lyapunov stability theory. The stator frequency was introduced to the model to get per-unit value of reactive power error,thus,convergence rate of Tr was close at high speed and low speed. Moreover, this maked the estimation be available in four quadrant application. Simulation and experimental results have validated the effectiveness of the method. © 2016 Chin. Soc. for Elec. Eng.
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页码：3947 / 3954
页数：7
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