• CN:11-2187/TH
  • ISSN:0577-6686

›› 2008, Vol. 44 ›› Issue (7): 38-44.

• 论文 • 上一篇    下一篇

超磁致伸缩驱动器频率相关的动态磁滞模型

郑加驹; 王洪礼; 曹淑瑛   

  1. 天津大学机械工程学院; 河北工业大学电气工程与自动化学院
  • 发布日期:2008-07-15

Frequent-dependent Dynamic Hysteresis Model of Giant Magnetostrictive Actuator

ZHENG Jiaju;WANG Hongli;CAO Shuying   

  1. School of Mechanical Engineering, Tianjin University School of Electrical Engineering & Automation, Hebei University of Technology
  • Published:2008-07-15

摘要: 考虑超磁致伸缩驱动器频率相关的涡流损耗和异常损耗,将Jiles-Atherton静态磁化强度模型扩展为动态磁化强度模型。基于动态磁化强度模型及驱动器结构动力学原理,建立驱动器的动态磁滞模型,并应用遗传算法辨识该模型的参数。试验结果表明,该模型能在较宽的频率范围内较好地描述驱动器的动态磁滞特性,对驱动器的性能估计和控制器设计具有重要指导意义。

关键词: 参数辨识, 超磁致伸缩驱动器, 磁滞非线性, 动态磁化强度模型

Abstract: The Jiles-Atherton static magnetization model is extended to a dynamic magnetization model by considering the frequency-dependent eddy current loss and anomalous loss of the giant magnetostrictive actuator. A dynamic hysteresis model is established based on the dynamic magnetization model and the structural dynamic principle of the actuator. Moreover, a genetic algorithm is used to identify the parameters of the model. Experimental results show that the proposed model can better describe the dynamic hysteresis characteristics of the actuator in a wide frequency range. Therefore, the model has important significance for performance estimation and controller design of the actuator.

Key words: Hysteresis nonlinearity, Dynamic magnetization model, Giant magnetostrictive actuator (GMA), Parameter identification

中图分类号: