Rotor time constant on-line estimation of induction motors based on MRAS

被引：0
|
作者：
Wang, Gaolin [1 ]
Yang, Rongfeng [1 ]
Zhang, Jiawan [1 ]
Yu, Yong [1 ]
Ma, Jianxiong [2 ]
Cai, Liang [2 ]
Xu, Dianguo [1 ]
机构：
[1] Harbin Institute of Technology, Harbin 150001, China
[2] Shanghai STEP Electric Corporation, Shanghai 201802, China
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2012年 / 27卷 / 04期
关键词：
Sensitivity analysis - Model reference adaptive control - Stators - Electric drives - Vector control (Electric machinery) - Estimation;
D O I：
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中图分类号：
学科分类号：
摘要：
Field-oriented controlled induction motor drives may be detuned due to rotor time constant variation. A rotor time constant estimation method based on model reference adaptive system (MRAS) with reactive power model is presented. Convergence of the estimator is proved using the Popov's super-stability theory. Since dead-time effect of inverter may induce reconstruction error of phase voltage and waveform distortion of stator current. A dead-time compensation strategy is presented to improve accuracy of model calculation. The stator current vector angle is obtained in synchronous rotating scheme. Then sensitivity of motor parameters to the model is analyzed. The feasibility of the proposed estimation is verified by experimental results of field-oriented vector controlled 11kW induction motor drive.
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页码：48 / 53
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