An automatic frequency control system based on MicroTCA

Xinghai TANG; Yajuan LIU; Junqiang ZHANG; Lin LI; Qiang GU

doi:10.11889/j.0253-3219.2016.hjs.39.070102

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An automatic frequency control system based on MicroTCA

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS | 更新时间：2021-05-24

- An automatic frequency control system based on MicroTCA
- NUCLEAR TECHNIQUES Vol. 39, Issue 7, Article number: 070102(2016)
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800;
  2.中国科学院大学北京 100049
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2016.hjs.39.070102
  CLC： TL503.6
- Received：14 March 2016，
  
  Revised：31 March 2016，
  
  Published：2016-07
- 稿件说明：
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Xinghai TANG, Yajuan LIU, Junqiang ZHANG, et al. An automatic frequency control system based on MicroTCA[J]. Nuclear techniques, 2016, 39(7): 070102
DOI：

Xinghai TANG, Yajuan LIU, Junqiang ZHANG, et al. An automatic frequency control system based on MicroTCA[J]. Nuclear techniques, 2016, 39(7): 070102 DOI： 10.11889/j.0253-3219.2016.hjs.39.070102.

摘要

高品质的束流是产生高品质同步辐射光或自由电子激光的关键，电子直线加速器作为同步辐射光源的注入器，其性能表现直接影响到束流品质。为降低噪声（温度变化、机械振动等）的干扰，本文研究和实现了一个通用、鲁棒、高效、可扩展性好的电子直线加速器低电平控制系统。目前已经实现了自动频率控制（Automatic Frequency Control

AFC）功能，更多控制功能将会陆续实现。该系统基于MicroTCA，选用实验物理与工业控制系统（Experimental Physics and Industrial Control System

EPICS）架构，采用C/C++开发，利用PID （Proportion-Integral-Differential）算法和最小二乘法，能够采用两种不同的方法进行自动频率控制。在巴西Sirius光源直线加速器实验装置上对该控制系统进行调试和测试，结果表明，两种AFC方法都是有效的，且存在明显差异，未来将进一步优化和完善。

Abstract

Background

High quality electronic beam is the key to produce high quality synchrotron radiation or free-electron laser (FEL). Microwave electronic LINAC plays the role of injector

whose performance influences the quality of electronic beam deeply.

Purpose

In order to minimize the noise interference (temperature

microphonics

etc)

we develop a universal

robust

efficient and extendible Low Level Radio Frequency (LLRF) control system

in which automatic frequency control (AFC) function is already implanted and more functions will be embedded in the future. Methods: This system

based on MicroTCA

adopts Experimental Physics and Industrial Control System (EPICS) structures

and develops in C/C++. The core algorithms are Proportion-Integral-Differential (PID) and Least-Squares method.

Results

Two different ways of AFC were realized and the system was tested on Sirius-LINAC test facility.

Conclusion

The result shows that the cavity is well tuned when the AFC system is on

and obvious differences are found. This system will be optimized and enlarged in the future.

关键词

Keywords

references

赵明华 , 林国强 , 钟少鹏 , . 上海光源150. MeV电子直线加速器的设计与调试 . 中国物理C , 2008 . 32 ( 增1 ): 244 - 246 .

Minghua ZHAO , Guoqiang LIN , Shaopeng ZHONG , . Design and commissioning of a 150 MeV linac for SSRF . Chinese Physics C , 2008 . 32 ( Suppl 1 ): 244 - 246 .

汪宝亮 , 赵明华 , 侯汨 , . 上海光源次谐波聚束器的优化设计及测试 . 强激光与粒子束 , 2008 . 20 ( 6 ): 1053 - 1056 .

Baoliang WANG , Minghua ZHAO , Mi HOU , . Optimization and test of sub-harmonic buncher for Shanghai Synchrotron Radiation Facility . High Power Laser and Particle Beams , 2008 . 20 ( 6 ): 1053 - 1056 .

后接. 上海光源储存环闭轨校正与轨道慢反馈研究[D]. 上海:中国科学院上海应用物理究所, 2008.

HOU Jie. Study of closed orbit correction and slow orbit feedback for the SSRF storage ring[D]. Shanghai:Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2008

张俊强 , 殷重先 , 高永强 , . FPGA实现次谐波聚束器的幅相控制 . 核技术 , 2012 . 35 ( 7 ): 499 - 502 .

Junqiang ZHANG , Chongxian YIN , Yongqiang GAO , . An FPGA-based amplitude and phase control of sub-harmonic buncher . Nuclear Techniques , 2012 . 35 ( 7 ): 499 - 502 .

李林. 软X射线自由电子激光LLRF控制系统建模及算法研究[D]. 上海:中国科学院上海应用物理究所, 2015.

LI Lin. RF system modeling and research on algorithm of digital low level RF system of soft X-ray free electron lasers[D]. Shanghai:Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2015

Martin K, Lyudvig P, Christian S, et al. Drivers and software for MicroTCA.4[R]. Dresden, Germany, 2014. DOI:10.1109/RTC.2014.7097449 http://dx.doi.org/DOI:10.1109/RTC.2014.7097449

阎映炳. 上海光源束流位置测量数据采集系统研制及初步应用研究[D]. 上海:中国科学院上海应用物理究所, 2009.

YAN Yingbing. Research of SSRF BPM data acqusition system and preliminary application[D]. Shanghai:Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2009

Thomas S. Vector sum control of pulsed accelerating fields in lorentz force detuned superconducting cavities[D]. Hamburg:DESY, 1998

Farkas Z D, Hogg H A, Loew G A. SLED:a method of doubling slac's energy[R]. SLAC-PUB-1453, 1974

Rong L Y, Yao Y, Xu X N, et al. The improvements of LLRF control system for CSNS LINAC[R]. Lawrence Berkeley National Laboratory, 2013

原通文. 基于嵌入式系统的电子直线加速器自动频率跟踪系统[D]. 北京:北京机械工业自动化研究所, 2002.

YUAN Tongwen. An AFC system of LINAC based on embeded-system[D]. Beijing:Beijing Research Institute of Automation for Machinery Industry, 2002

范咏峰 , 李平 . 浅析PID参数整定 . 中国仪器仪表 , 2002 . ( 3 ): 24 - 28 . DOI: 10.3969/j.issn.1005-2852.2002.03.008 http://doi.org/10.3969/j.issn.1005-2852.2002.03.008 .

Yongfeng FAN , Ping LI . PID controller tuning . China Instrumentation , 2002 . ( 3 ): 24 - 28 . DOI: 10.3969/j.issn.1005-2852.2002.03.008 http://doi.org/10.3969/j.issn.1005-2852.2002.03.008 .

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