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浙江大学学报(工学版)
电气工程     
基于扩张状态观测器的永磁电机电流预测控制
张明晖,杨家强,陈磊,楼佳羽
浙江大学 电气工程学院,浙江 杭州 310027
Current predictive control method based on extended state observer for permanent magnetic synchronous motor
ZHANG Ming hui, YANG Jia qiang, CHEN Lei, LOU Jia yu
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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摘要:

针对永磁同步电机传统无差拍电流预测控制中系统参数失配以及模型不确定性带来的电流扰动问题,提出基于扩张状态观测器的电流预测控制算法.在传统无差拍电流预测控制算法的基础上,建立包含交、直轴电流和内、外扰动量的扩张状态观测器数学模型.引入权重因子,通过交、直轴电流观测值对预测控制中的参考电流进行修正,利用观测获得的控制系统扰动量对电机的参考电压进行修正.开展所提算法和传统的预测控制算法的实验对比研究.实验结果表明,采用该方法能够有效地减小系统电流环扰动和转矩波动,提高稳态转速精度.

Abstract:

A new current predictive control method based on extended state observer was proposed to reduce the disturbance of traditional dead-beat strategy, which was caused by parameter mismatch and model uncertainty. The math model of extended state observer was established based on the traditional deadbeat control. Then dq axis  currents were observed, and both internal and external disturbance were estimated. The observed DQ currents were used to amend reference currents with the help of weight factor. Reference voltages can be regulated by disturbance estimation. Experiments between traditional dead-beat control and improved method were conducted. Results demonstrate that the ripple of current and torque can be effectively reduced, and the steady-state speed precision can be improved.

出版日期: 2016-07-23
:  TM 315  
基金资助:

 国家自然科学基金资助项目(51177150);国家“973”重点基础研究发展规划资助项目(2013CB035604);浙江省公益性技术应用研究计划资助项目(2015C31125);浙江省自然科学基金资助项目(Y14E070011).

通讯作者: 杨家强,男,副教授. ORCID: 0000-0002-3822-3301.      E-mail: yjq1998@163.com
作者简介: 张明晖(1991-),男,硕士生,从事高精度伺服控制系统研究. ORCID: 0000-0001-5210-597X. E-mail: jn6067@zju.edu.cn
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引用本文:

张明晖,杨家强,陈磊,楼佳羽. 基于扩张状态观测器的永磁电机电流预测控制[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.07.023.

ZHANG Ming hui, YANG Jia qiang, CHEN Lei, LOU Jia yu. Current predictive control method based on extended state observer for permanent magnetic synchronous motor. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.07.023.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.07.023        http://www.zjujournals.com/eng/CN/Y2016/V50/I7/1387

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