Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS

doi:10.1107/S1600577523000528

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	Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS
	Y. Bai, X. Gong, Q. Lu, Y. Song, W. Zhu, S. Xue, D. Wang, Z. Peng and Z. Zhang
	2023
发表期刊	Journal of Synchrotron Radiation
ISSN	09090495
卷号	30 页码:308-318
摘要	Double-crystal monochromators (DCMs) are one of the most critical optical devices in beamlines at synchrotron sources, directly affecting the quality of the beam energy and position. As the performance of synchrotron light sources continues to improve, higher demands are placed on the stability of DCMs. This paper proposes a novel adaptive vibration control method combining variational modal decomposition (VMD) and filter-x normalized least mean squares (FxNLMS), ensuring DCM stability under random engineering disturbance. Firstly, the sample entropy of the vibration signal is selected as the fitness function, and the number of modal components k and the penalty factor α are optimized by a genetic algorithm. Subsequently, the vibration signal is decomposed into band frequencies that do not overlap with each other. Eventually, each band signal is individually governed by the FxNLMS controller. Numerical results have demonstrated that the proposed adaptive vibration control method has high convergence accuracy and excellent vibration suppression performance. Furthermore, the effectiveness of the vibration control method has been verified with actual measured vibration signals of the DCM. © 2023 International Union of Crystallography. All rights reserved.
DOI	10.1107/S1600577523000528
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67342
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Bai, X. Gong, Q. Lu, Y. Song, W. Zhu, S. Xue, D. Wang, Z. Peng and Z. Zhang. Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS[J]. Journal of Synchrotron Radiation,2023,30:308-318.
APA	Y. Bai, X. Gong, Q. Lu, Y. Song, W. Zhu, S. Xue, D. Wang, Z. Peng and Z. Zhang.(2023).Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS.Journal of Synchrotron Radiation,30,308-318.
MLA	Y. Bai, X. Gong, Q. Lu, Y. Song, W. Zhu, S. Xue, D. Wang, Z. Peng and Z. Zhang."Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS".Journal of Synchrotron Radiation 30(2023):308-318.

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