Torque Based Model Reference Adaptive System Updating Rotor Time Constant in Induction Motor Drives

被引：0

作者：

Cao, Pengpeng ^{[1
]}

Zhang, Xing ^{[1
]}

Yang, Shuying ^{[1
]}

Xie, Zhen ^{[1
]}

Zhang, Yuwei ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Elect Engn & Automat, Hefei, Anhui, Peoples R China

来源：

2017 IEEE TRANSPORTATION ELECTRIFICATION CONFERENCE AND EXPO, ASIA-PACIFIC (ITEC ASIA-PACIFIC) | 2017年

关键词：

induction motor drive; lyapunov theorem; rotor time constant; torque model; FIELD-ORIENTATION; SPEED; IDENTIFICATION; RESISTANCE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electromagnetic torque can be used to form a model reference adaptive system (MRAS) to achieve online identification of rotor time constant in an induction motor drive. The steady-state torque error caused by rotor time constant error is established in this paper. Based on the steady-state analysis, the converging relationship in the MRAS is found out to be lost for some operating points. Then the torque based adaptive scheme is further derived with Lyapunov theorem and the limitation of the scheme is also exposed, due to that Lyapunov stability criterion is not always satisfied. Besides, it is revealed that the torque model is more applicable to heavy-load operation. Experimental results are given to verify the proposed analysis.

引用

页码：871 / 875

页数：5

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