智能作动器Preisach迟滞参数辨识及补偿研究

王萍萍;刘 磊;栾晓娜

振动与冲击 ›› 2014, Vol. 33 ›› Issue (20) : 91-94.

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PDF(1783 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (20) : 91-94.
论文

智能作动器Preisach迟滞参数辨识及补偿研究

  • 王萍萍1, 刘 磊2, 栾晓娜1
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Parameter identification and compensation of Preisach hysteresis in smart actuators

  • WANG Ping-ping1,LIU Lei2,LUAN Xiao-na1
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文章历史 +

摘要

针对实现智能作动器精确运动需对迟滞非线性进行辨识、补偿问题,采用奇异值分解方法辨识Preisach模型参数,构造变幅值谐波输入信号满足持续激励条件;基于辨识模型设计逆模型前馈补偿Preisach迟滞非线性;通过压电平台检验该辨识、补偿方法。实验结果表明,奇异值分解法可有效辨识迟滞效应非线性模型,基于辨识结果的逆模型补偿可减小跟踪误差89.5%。

Abstract

The working performance of smart actuators is affected by the hysteretic effect nonlinearity. Thus, it is necessary to identify and compensate the hysteresis nonlinearity to achieve precision motion. At first, based on the singular value decomposition (SVD) method, the parameters of the Preisach model are identified using the de-signed harmonic input signals with varying amplitudes to satisfy PE condition. Then, based on the identified Preisach model, the mode-inversion feedforward is designed to compensate the hysteresis nonlinearity. Finally, the piezoelectric stage is used to validate the proposed identification and compensation methods. The experimental re-sults indicate that the hysteresis nonlinearity has been identified using the SVD method, the tracking error has been reduced by 89.5% using the model-inversion compensator. The proposed identification and compensation ap-proaches have been verified.

关键词

智能作动器 / Preisach迟滞效应 / 奇异值分解 / 逆模型

Key words

smart actuator / Preisach hysteresis effect / singular value decomposition / model inversion

引用本文

导出引用
王萍萍;刘 磊;栾晓娜. 智能作动器Preisach迟滞参数辨识及补偿研究[J]. 振动与冲击, 2014, 33(20): 91-94
WANG Ping-ping;LIU Lei;LUAN Xiao-na. Parameter identification and compensation of Preisach hysteresis in smart actuators [J]. Journal of Vibration and Shock, 2014, 33(20): 91-94

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