[1]王淑玉,罗振鹏,张思清,等.优化反馈补偿闭环定子磁链观测器[J].微电机,2022,55(08):80-84.
WANG Shuyu,LUO Zhenpeng,ZHANG Siqing,et al.Optimal feedback compensation closed-loop stator flux observer[J].MICROMOTORS,2022,55(08):80-84.
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《微电机》[ISSN:1006-6977/CN:61-1281/TN]
卷:
55卷
期数:
2022年08期
页码:
80-84
栏目:
出版日期:
2022-09-28
- Title:
-
Optimal feedback compensation closed-loop stator flux observer
- 文章编号:
-
1001-6848(2022)08-0080-05
- 作者:
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王淑玉,罗振鹏,张思清,韩越,王小龙
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(内蒙古自治区机电控制重点实验室(内蒙古工业大学),内蒙古自治区 呼和浩特 010080)
- Author(s):
-
WANG Shuyu, LUO Zhenpeng, ZHANG Siqing, HAN Yue, WANG Xiaolong
-
(Inner Mongolia Key Laboratory of Electromechanical Control(Inner Mongolia University of Technology),Hohhot 010080,Inner Mongolia,China)
-
- 关键词:
-
磁链观测; 定子磁链观测器; 异步电机; 直接转矩控制
- Keywords:
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flux observer; stator flux observer; asynchronous motor; direct torque control
- 分类号:
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TM343
- 文献标志码:
-
A
- 摘要:
-
针对纯积分定子磁链观测器存在的直流偏置与积分漂移问题,对反馈闭环磁链观测器进行了优化,设计了一种改进的反馈补偿闭环磁链观测器。该观测器先利用磁链与反电动势两矢量的正交关系,控制二者的夹角余弦值为零,再通过简单的乘法运算,实现对磁链的动态补偿,从而得到正确的积分结果。理论分析显示,积分结果中的直流分量能够得到完全消除,同时仿真结果证明了,改进观测器的良好性能以及理论分析的正确性。
- Abstract:
-
Aiming at the DC bias and integral drift of pure integral stator flux observer, the feedback closed-loop flux observer is optimized and an improved flux observer is designed based on feedback compensation closed loop flux observer. Firstly, the orthogonal relationship between the flux linkage and the back electromotive force (EMF) is used to control the cosine of the angle between them to zero. Then through simple multiplication operation, the dynamic compensation of flux linkage is realized, and the correct integration result is obtained. Theoretical analysis shows that the DC component in the integration result can be completely eliminated. At the same time, the simulation results prove the good performance of the improved observer and the correctness of the theoretical analysis. Theoretical analysis shows that, the DC component in the integration result can be completely eliminated. The simulation results verify the good performance of the improved observer and the correctness of the theoretical analysis.
更新日期/Last Update:
2022-12-09