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[1]杨淑英,丁大尉,李曦,等.基于反电动势滑模观测器的异步电机矢量控制[J].电机与控制学报,2016,20(10):23-30.[doi:10. 15938 /j. emc. 2016. 10. 004]
 YANG Shu-ying,DING Da-wei,LI Xi,et al.Back-EMF based sliding mode observer for vector control of induction machine[J].,2016,20(10):23-30.[doi:10. 15938 /j. emc. 2016. 10. 004]
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年10
页码:
23-30
栏目:
出版日期:
2016-10-01

文章信息/Info

Title:
Back-EMF based sliding mode observer for vector control of induction machine
作者:
杨淑英 丁大尉 李曦 张兴
( 合肥工业大学 电气与自动化工程学院,安徽 合肥 230009)
Author(s):
YANG Shu-ying DING Da-wei LI Xi ZHANG Xing
( School of Electrical Engineering and Automation,Hefei University of Technology,Hefei 230009,China)
关键词:
异步电机 无速度传感器 反电动势 参数鲁棒性 高阶滑模观测器
Keywords:
 induction machine speed sensorless control back electromotive force parameter robustness high-order sliding mode observer
分类号:
TM 343 + . 2
DOI:
10. 15938 /j. emc. 2016. 10. 004
文献标志码:
A
摘要:
为提高异步电机无速度传感器控制参数鲁棒性,同时减小滑模抖振,研究了一种基于反电 动势高阶滑模观测器的异步电机速度观测和矢量定向方案。在对异步电机数学模型变换的基础 上,通过非奇异终端滑模观测器的设计,实现了对反电动势的准确观测。据此设计了转速适应率, 实现了转速观测,并由反电动势和转子磁链之间的故有相位关系,实现了转子磁场的直接定向。该 方案的突出优势在于其较强的参数鲁棒性: 一方面,其矢量定向的准确性不受转子电阻这一易变参 数的影响; 另一方面,转子电阻的变化对速度观测精确度的影响较小。同时高阶滑模观测器的设计 有效地抑制了滑模抖振,提高了观测精确度。仿真结果验证了该方案的有效性,展示了其较强的参 数鲁棒性。
Abstract:
To improve robustness of speed sensorless control of induction motor and reduce sliding mode control chattering,a high-order sliding mode observer for back electromotive force ( EMF) in induction machine ( IM) is investigated to achieve the speed estimation and the vector orientation. By operating the mathematical model of IM,and designing on a non-singular terminal sliding mode observer,the EMF was observed accurately. Further,the speed adaptation law and speed observation scheme were figured out, meanwhile,based on the phase property of the observed EMF out of the rotor flux,the direct orientation of vector control was obtained with the designed observer. One of the advantages of the strategy is with high parameter robustness. Namely,the accuracy of the vector orientation is not affected by the parameter of rotor resistance,and the negative impact on speed accuracy is scarcely perceptible. In addition,the chattering disturbance resulting from the discontinuous control in sliding mode observer is inhibited well in the high-order sliding mode observer,improving the observation accuracy. The simulation results show the validity and robustness of the proposed strategy.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2015 - 09 - 11
作者简介: 杨淑英( 1980—) ,男,博士,副教授,研究方向为大功率风力发电用变流器及电机驱动控制;
丁大尉( 1991—) ,男,硕士研究生,研究方向为异步电机驱动控制;
李 曦( 1992—) ,女,硕士研究生,研究方向为异步电机驱动控制;
张 兴( 1963—) ,男,教授,博士生导师,研究方向为特种电源系统、大功率风力发电用变流器及大型光伏并网发电。
更新日期/Last Update: 2016-12-08