A Digital Control Scheme of Power Supply System for RCS/CSNS

HU Wei; ZHANG Jing; QI Xin

Chinese Physics C> 2007, Vol. 31> Issue(11) : 1062-1066

A Digital Control Scheme of Power Supply System for RCS/CSNS

Institute of High Energy Physics, CAS, Beijing 100049, China

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Abstract：
A 1.6GeV proton rapid cycle synchrotron (RCS) was designed in the Chinese Spallation Neutron Source (CSNS) Project. The magnet power supply system of the synchrotron drives nine sets of independent 25Hz White Circuit. The output currents of the nine sets of magnet power supply are the DC-biased AC source. The currents (magnetic fields) must meet the requirements of the phase and amplitude accuracy during the accelerator repetition cycle. Because of the advantages of the digital control technique such as reliability, temperature drift rejection, and high integration and so on, it has been adopted more and more widely in the equipment design. To achieve the rigorous goals such as stability and THD (Total Harmonic Distortion) in the RCS/CSNS magnet power supply system, a digital control scheme will be implemented which will be presented in this paper.

References

[1]

. QI Xin, XU Zhong-Xiong. Resonant Magnet Power Supply System for the RCS/CSNS. Won Namkung ed. Proceedings of APAC 2004. Gyeongju: Pohang Accelerator Laboratory, 2004. 586-5882. LONG Feng-Li. Research and Design of Digital Power Supply. Lanzhou: Institute of Modern Physics, ChineseAcademy of Sciences, 2006 (in Chinese)(龙锋利. 数字化电源的设计和研制. 兰州: 首届加速器磁铁电源真空技术研讨讨会摘要文集, 2006)3. Büurkmann K et al. Performance of the White Circuits of the BESSY Ⅱ Booster Synchrotron. Rensfelt K G et al. ed.Proceeding of EPAC 1998. Stockholm: Institute of PhysicsPublishing, 1998. 2062-20644. CHEN C S et al. Performance of the New White Circuit in Upgrated 1.5GeV Booster Synchrotron. Regler M ed.Proceedings of EPAC 2000. Vienna: Austrian Academy of Sciences Press, 2000. 1829-1831

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HU Wei, ZHANG Jing and QI Xin. A Digital Control Scheme of Power Supply System for RCS/CSNS[J]. Chinese Physics C, 2007, 31(11): 1062-1066.

HU Wei, ZHANG Jing and QI Xin. A Digital Control Scheme of Power Supply System for RCS/CSNS[J]. Chinese Physics C, 2007, 31(11): 1062-1066. shu

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Received: 2007-01-05
Revised: 2007-01-22

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沈阳化工大学材料科学与工程学院沈阳 110142

A Digital Control Scheme of Power Supply System for RCS/CSNS

Corresponding author: HU Wei,

Institute of High Energy Physics, CAS, Beijing 100049, China

Received Date: 2007-01-05
Accepted Date: 2007-01-22
Available Online: 2007-11-05

Abstract: A 1.6GeV proton rapid cycle synchrotron (RCS) was designed in the Chinese Spallation Neutron Source (CSNS) Project. The magnet power supply system of the synchrotron drives nine sets of independent 25Hz White Circuit. The output currents of the nine sets of magnet power supply are the DC-biased AC source. The currents (magnetic fields) must meet the requirements of the phase and amplitude accuracy during the accelerator repetition cycle. Because of the advantages of the digital control technique such as reliability, temperature drift rejection, and high integration and so on, it has been adopted more and more widely in the equipment design. To achieve the rigorous goals such as stability and THD (Total Harmonic Distortion) in the RCS/CSNS magnet power supply system, a digital control scheme will be implemented which will be presented in this paper.