吉林大学学报(工学版) ›› 2004, Vol. ›› Issue (3): 422-426.

• 论文 • 上一篇    下一篇

在线消除准-周期干扰的自适应算法

徐昱琳, 薛立   

  1. 中原工学院 电气工程系, 河南 郑州 450007
  • 收稿日期:2004-02-11 出版日期:2004-07-01

On-line adaptive algorithm for quasi-periodic disturbance rejection

XU Yulin, XUE Li   

  1. Department of Electrical Engineering, Zhongyuan Institute of Technology, Zhengzhou 450007, China
  • Received:2004-02-11 Online:2004-07-01

摘要: 提出了一种基于锁相回路结构的自适应算法。给出了该算法的频域分析及参数设计。该算法可在线估测出准 周期干扰信号的相位及幅值,并能消除准 周期干扰的影响,可被直接嵌入工业控制器而无需改变控制器的结构。通过在卷绕传输系统中的应用验证了该自适应算法能很好地估测出干扰信号的参数,并能有效地抑制准-周期干扰的影响。

关键词: 自动控制技术, 消除准-周期干扰, 锁相回路, 自适应算法

Abstract: Since industrial web winding and its transport system were subjected to quasi-periodic disturbance and the disturbance frequency normally varies slowly with the winding rotation speed, and adaptive algorithm based on a phase-locked loop structure was proposed. This algorithm can cancel the disturbance after the simultaneous estimation of its phase and magnitude. The frequency analysis and the parameter design of this algorithm were also discussed. The adaptive algorithm can be plugged into the existing controller without any structure modification. Simulation results show that the proposed method can reject the quasi-periodic disturbances.

Key words: automatic control technology, quasi-periodic disturbances rejection, phase-locked loop, adaptive algorithm

中图分类号: 

  • TP273.2
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