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HIRFL数字化高频低电平控制系统研究

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丛岩, 许哲, 李刚, 王贤武, 孙列鹏, 仪孝平. 2012: HIRFL数字化高频低电平控制系统研究, 原子核物理评论, 29(3): 248-252.
引用本文: 丛岩, 许哲, 李刚, 王贤武, 孙列鹏, 仪孝平. 2012: HIRFL数字化高频低电平控制系统研究, 原子核物理评论, 29(3): 248-252.
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2012: Research of Digital Low Level Radio Frequency Control System for HIRFL, Nuclear Physics Review, 29(3): 248-252.
Citation: 2012: Research of Digital Low Level Radio Frequency Control System for HIRFL, Nuclear Physics Review, 29(3): 248-252.
shu

HIRFL数字化高频低电平控制系统研究

  • 中国科学院近代物理研究所,甘肃兰州730000 中国科学院研究生院,北京100049

  • 中国科学院近代物理研究所,甘肃兰州,730000

  • 中国航天科工集团二院二十三所,北京,100048

Research of Digital Low Level Radio Frequency Control System for HIRFL

  • 摘要: In order to ensure that the beam quality is well enough, we need to precisely control the frequen- cy, amplitude and phase of cavity electric field. Traditional control system consists of amplitude loop and phase loop. And these two loops control amplitude and phase stability respectively. The digital low level radio frequency （LLRF） system, which uses advanced digital control technology, needs only one feed-back loop to control amplitude and phase stability. The phase control precision and stability of the system are higher than the traditional control system. The LLRF system is based on field programmable gate array （FPGA） and digital signal processing （DSP）, and implemented by direct digital frequency synthesis （DDS） and digital orthogonal modulation and demodulation （I/Q） technology. The digital LLRF system has been tested in a long-term stability and high-power experiments. The amplitude deviation is lower than ± 1 , and phase control accuracy is within ±1.
    Abstract: In order to ensure that the beam quality is well enough, we need to precisely control the frequen- cy, amplitude and phase of cavity electric field. Traditional control system consists of amplitude loop and phase loop. And these two loops control amplitude and phase stability respectively. The digital low level radio frequency （LLRF） system, which uses advanced digital control technology, needs only one feed-back loop to control amplitude and phase stability. The phase control precision and stability of the system are higher than the traditional control system. The LLRF system is based on field programmable gate array （FPGA） and digital signal processing （DSP）, and implemented by direct digital frequency synthesis （DDS） and digital orthogonal modulation and demodulation （I/Q） technology. The digital LLRF system has been tested in a long-term stability and high-power experiments. The amplitude deviation is lower than ± 1 , and phase control accuracy is within ±1.
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  • 刊出日期:  2012-09-20

HIRFL数字化高频低电平控制系统研究

  • 中国科学院近代物理研究所,甘肃兰州730000 中国科学院研究生院,北京100049
  • 中国科学院近代物理研究所,甘肃兰州,730000
  • 中国航天科工集团二院二十三所,北京,100048

摘要: In order to ensure that the beam quality is well enough, we need to precisely control the frequen- cy, amplitude and phase of cavity electric field. Traditional control system consists of amplitude loop and phase loop. And these two loops control amplitude and phase stability respectively. The digital low level radio frequency （LLRF） system, which uses advanced digital control technology, needs only one feed-back loop to control amplitude and phase stability. The phase control precision and stability of the system are higher than the traditional control system. The LLRF system is based on field programmable gate array （FPGA） and digital signal processing （DSP）, and implemented by direct digital frequency synthesis （DDS） and digital orthogonal modulation and demodulation （I/Q） technology. The digital LLRF system has been tested in a long-term stability and high-power experiments. The amplitude deviation is lower than ± 1 , and phase control accuracy is within ±1.

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