现代防御技术 ›› 2022, Vol. 50 ›› Issue (1): 102-108.DOI: 10.3969/j.issn.1009-086x.2022.01.015

• 测试、发射技术 • 上一篇    

伺服系统速度环控制器参数的自整定及优化

李方俊, 王生捷   

  1. 北京机械设备研究所,北京 100854
  • 收稿日期:2021-08-30 修回日期:2021-10-22 出版日期:2022-02-28 发布日期:2022-02-23
  • 作者简介:李方俊(1993-),男,湖南常德人。博士生,主要研究方向为永磁同步电机伺服控制系统控制方法。

Research on Self⁃Tuning and Optimization of Speed Loop Controller Parameters in Servo System

Fang⁃jun LI, Sheng⁃jie WANG   

  1. Beijing Institute of Mechanical Equipment,Beijing 100854,China
  • Received:2021-08-30 Revised:2021-10-22 Online:2022-02-28 Published:2022-02-23

摘要:

针对交流伺服系统速度环控制器参数自整定及优化的需求,为使工程技术人员避免繁琐的调参过程,提出了一种基于转动惯量辨识的速度环控制器参数自整定及优化方法。首先,采用频率法分析伺服系统速度环控制器参数的设计规则;随后,采用遗忘因子递推最小二乘法,对控制器参数设计所需的系统转动惯量进行辨识;最后,在此基础上利用设计的变步长迭代算法,完成控制器参数寻优过程。仿真结果表明,采用遗忘因子递推最小二乘法,能够有效辨识出电机轴端的转动惯量。提出算法进行整定及优化后,速度环控制器参数能使系统具有良好的动态响应和鲁棒性。

关键词: 交流伺服系统, 速度环, 转动惯量, 参数自整定, 遗忘因子递推最小二乘法, 参数优化

Abstract:

In order to avoid the tedious parameter tuning process, a self-tuning and optimization method for the speed loop controller parameters based on inertia identification is proposed. The design rules of the speed loop controller parameters are analyzed with the frequency method. The inertia is identified with recursive least square method with a forgetting factor. The controller parameters optimization is performed using the variable step iterative algorithm designed in this paper. Simulation results show that using the recursive least square method with a forgetting factor can effectively identify the moment of the inertia of a motor. Speed loop controller parameters, which are optimized by the method proposed, can provide the system good dynamic response and robustness.

Key words: ac servo system, speed loop, inertia, self-tuning, recursive least square method with a forgetting factor, parameters optimization

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