电磁作动器出力特性及自适应抑制算法

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (1) : 298-304.

论文

电磁作动器出力特性及自适应抑制算法

张庆伟1，俞翔2，闫政涛3，杨理华4,5

作者信息 +

Output characteristics and adaptive suppression algorithm for electromagnetic actuator

ZHANG Qingwei1, YU Xiang2, YAN Zhengtao3, YANG Lihua4,5

Author information +

文章历史 +

摘要

针对隔振系统受到强烈干扰或冲击，导致控制器输出信号超出作动器工作电流范围，使控制系统失效的问题，提出了一种自适应饱和抑制算法。首先对电磁作动器特性进行分析，得出作动器会随电流增大产生磁饱和现象导致进入饱和区。然后在FXLMS算法基础上引入抑制因子对控制权系数更新进行修正，从而增强在受到强烈干扰或冲击系统的鲁棒性。仿真和实验结果表明，该算法较好地解决了作动器饱和影响，对双频激励取得了显著的控制效果，在受到冲击时展现了良好的鲁棒性。

Abstract

Aimed at the problem that the vibration isolation system is subject to strong interference or impact, which causes the controller output signal to exceed the operating current range of the actuator, which makes the control system fail. An adaptive saturation suppression algorithm is proposed. First, the characteristics of the electromagnetic actuator are analyzed, and it is concluded that the actuator will generate magnetic saturation with the increase of current and enter the saturation zone. Then, on the basis of the FXLMS algorithm, a suppression factor is introduced to modify the update of the control weight coefficient, thereby enhancing the robustness of the system under strong interference or impact. The simulation and test results show that the algorithm solves the saturation effect of the actuator well, achieves a significant control effect on dual-frequency excitation, and exhibits good robustness when subjected to impact.

导出引用

张庆伟1，俞翔2，闫政涛3，杨理华4,5. 电磁作动器出力特性及自适应抑制算法[J]. 振动与冲击, 2022, 41(1): 298-304

ZHANG Qingwei1, YU Xiang2, YAN Zhengtao3, YANG Lihua4,5. Output characteristics and adaptive suppression algorithm for electromagnetic actuator[J]. Journal of Vibration and Shock, 2022, 41(1): 298-304

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