Cargando…
Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS
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 D...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10000807/ https://www.ncbi.nlm.nih.gov/pubmed/36891844 http://dx.doi.org/10.1107/S1600577523000528 |
_version_ | 1784903972801216512 |
---|---|
author | Bai, Yang Gong, Xuepeng Lu, Qipeng Song, Yuan Zhu, Wanqian Xue, Song Wang, Dazhuang Peng, Zhongqi Zhang, Zhen |
author_facet | Bai, Yang Gong, Xuepeng Lu, Qipeng Song, Yuan Zhu, Wanqian Xue, Song Wang, Dazhuang Peng, Zhongqi Zhang, Zhen |
author_sort | Bai, Yang |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-10000807 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-100008072023-03-11 Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS Bai, Yang Gong, Xuepeng Lu, Qipeng Song, Yuan Zhu, Wanqian Xue, Song Wang, Dazhuang Peng, Zhongqi Zhang, Zhen J Synchrotron Radiat Research Papers 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. International Union of Crystallography 2023-02-20 /pmc/articles/PMC10000807/ /pubmed/36891844 http://dx.doi.org/10.1107/S1600577523000528 Text en © Yang Bai et al. 2023 https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
spellingShingle | Research Papers Bai, Yang Gong, Xuepeng Lu, Qipeng Song, Yuan Zhu, Wanqian Xue, Song Wang, Dazhuang Peng, Zhongqi Zhang, Zhen Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS |
title | Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS |
title_full | Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS |
title_fullStr | Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS |
title_full_unstemmed | Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS |
title_short | Adaptive vibration control method for double-crystal monochromator base on VMD and FxNLMS |
title_sort | adaptive vibration control method for double-crystal monochromator base on vmd and fxnlms |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10000807/ https://www.ncbi.nlm.nih.gov/pubmed/36891844 http://dx.doi.org/10.1107/S1600577523000528 |
work_keys_str_mv | AT baiyang adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT gongxuepeng adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT luqipeng adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT songyuan adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT zhuwanqian adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT xuesong adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT wangdazhuang adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT pengzhongqi adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms AT zhangzhen adaptivevibrationcontrolmethodfordoublecrystalmonochromatorbaseonvmdandfxnlms |