Digital LLRF controller for SSRF booster RF system upgrade
文献类型：期刊论文
| 作者 | Zhang, ZG; Zhao, YB; Xu, K; Zheng, X; Li, Z; Zhao, SJ; Chang, Q; Hou, HT; Ma, ZY; Luo, C |
| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| 出版日期 | 2015 |
| 卷号 | 26期号:3页码:— |
| ISSN号 | 1001-8042 |
| 通讯作者 | Liu, JF (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. |
| 英文摘要 | The low level radio frequency (LLRF) system for booster accelerator at Shanghai Synchrotron Radiation Facility (SSRF) was upgraded by a digital controller based on field programmable gate array (FPGA) technology. Parameters of voltage, frequency and field flatness in the two 5-cell cavities are controlled to meet the requirements of booster. In this article, the ramping curve of cavity voltage, amplitude and phase control loop with vector sum of the two 5-cell cavities, tuning loop and field flatness loop are analyzed and discussed in detail. A different method in tuning loop is adopted due to the limitations of ADC channels. The function realizes energy ramping of electron beam from 150 MeV to 3.5 GeV with a repetition rate of 2 Hz. With the new LLRF controller, the phase stability at ramping mode in 10 hours long operation is improved from +/- 1.5 degrees (RMS) with open loop to +/- 0.15 degrees (RMS) with close loop, while the detuning phase and field flatness are maintained to within +/- 2 degrees and +/- 1%, respectively. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358109700006 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/24900]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Zhang, ZG,Zhao, YB,Xu, K,et al. Digital LLRF controller for SSRF booster RF system upgrade[J]. NUCLEAR SCIENCE AND TECHNIQUES,2015,26(3):—. |
| APA | Zhang, ZG.,Zhao, YB.,Xu, K.,Zheng, X.,Li, Z.,...&Liu, JF.(2015).Digital LLRF controller for SSRF booster RF system upgrade.NUCLEAR SCIENCE AND TECHNIQUES,26(3),—. |
| MLA | Zhang, ZG,et al."Digital LLRF controller for SSRF booster RF system upgrade".NUCLEAR SCIENCE AND TECHNIQUES 26.3(2015):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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