PI and fuzzy estimators for tuning the stator resistance in direct torque control of induction machines

被引：98
|
作者：
Mir, S [1 ]
Elbuluk, ME
Zinger, DS
机构：
[1] Univ Akron, Dept Elect Engn, Akron, OH 44325 USA
[2] No Illinois Univ, Dept Elect Engn, De Kalb, IL 60115 USA
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 1998年 / 13卷 / 02期
关键词：
estimators; fuzzy control; induction motor; stator resistance tuning; torque control;
D O I：
10.1109/63.662841
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：
Direct torque control (DTC) of induction machines uses the stator resistance of the machine for estimation of the stator flux. Variations of stator resistance due to changes in temperature or frequency make the operation of DTC difficult at low speeds. A method for the estimation of changes in stator resistance during the operation of the machine is presented. The estimation method is implemented using proportional-integral (PI) control and fuzzy logic control schemes. The estimators observe the machine stator current vector to detect the changes in stator resistance. The performance of the two methods are compared using simulation and experimental results. Results obtained have shown improvement in DTC at low speeds.
引用
收藏
页码：279 / 287
页数：9
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