Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS

SHEN Li; CHI Yun-Long; HUANG Chuan; TANG Jing-Yu

Chinese Physics C> 2008, Vol. 32> Issue(S1) : 22-24

Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS

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Abstract：
The China Spallation Neutron Source (CSNS) Rapid Cycling Synchrotron (RCS) is a high beam power proton accelerator. The task of RCS injection system is to inject the negative hydrogen ions coming from linac into RCS by stripping method. This power supply demands that its output pulse current falling edge be controlled by the program. The power supply uses the IGBT power amplifying method to generate the pulse current and makes it follow the setting waveform by the power supply's feedback control system. The tracking error is one of the important specifications of the power supply. To satisfy the tracking error less than 2%, the frequency of the IGBT topology requested is more than 400kHz. The IGBT topology is connected by the IGBT H bridges in series and parallel, and works in the phase shifted method to divide the current, the voltage and improve the equivalent frequency. High power, high frequency, fast speed response and optimal feedback control strategy are the key to the good performance of painting bumper magnets pulsed power supply.

References

[1]

. IHEP, China Spallation Neutron Source (CSNS) Concept Design, July 2004(in Chinese)(中国科学院高能物理研究所, 中国散裂中子源工程(CSNC)概念设计报告, 2004年7月)2. TANG J Y. CHEN Y. CHI Y L et al. Injection System Design for the CSNS/RCS, EPAC20063. Dewan S. (DPS), Eng W. (BNL), Holmes R. (IE) et al.1.12 MVA Peak Two Quadrant Pulse Switch Mode PowerSupply for SNS Injection Bump Magnet, EPAC20024. Dewan S. (DPS), Eng W. (BNL) et al. 1400A, +/- 900VPeak Pulse Switch Mode Power Supplies for SNS InjectionKickers, EPAC20035. Yoshiro Irie (JAERI/KEK). Some Aspects of the J-PARC3-GeV Rapid Cycling Synchrotron, October 13, 20066. Takayana T. Kamiya J.Watanabe Met al. Design of the In-jection Bump System of the 3-GEV RCS in J-PARC, IEEE20067. Peng Sheng. SNS Power Supply and Magnet Control Sys-tem, 20068. YU C B et al. Automatic Control Principle, January 2006(in Chinese)(余成波等. 自动控制原理, 2006年1月出版)

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SHEN Li, CHI Yun-Long, HUANG Chuan and TANG Jing-Yu. Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS[J]. Chinese Physics C, 2008, 32(S1): 22-24.

SHEN Li, CHI Yun-Long, HUANG Chuan and TANG Jing-Yu. Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS[J]. Chinese Physics C, 2008, 32(S1): 22-24. shu

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Received: 2008-01-09
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS

Corresponding author: SHEN Li,

Received Date: 2008-01-09

Accepted Date: 1900-01-01

Available Online: 2008-01-04

Abstract: The China Spallation Neutron Source (CSNS) Rapid Cycling Synchrotron (RCS) is a high beam power proton accelerator. The task of RCS injection system is to inject the negative hydrogen ions coming from linac into RCS by stripping method. This power supply demands that its output pulse current falling edge be controlled by the program. The power supply uses the IGBT power amplifying method to generate the pulse current and makes it follow the setting waveform by the power supply's feedback control system. The tracking error is one of the important specifications of the power supply. To satisfy the tracking error less than 2%, the frequency of the IGBT topology requested is more than 400kHz. The IGBT topology is connected by the IGBT H bridges in series and parallel, and works in the phase shifted method to divide the current, the voltage and improve the equivalent frequency. High power, high frequency, fast speed response and optimal feedback control strategy are the key to the good performance of painting bumper magnets pulsed power supply.

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Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS

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通讯作者: 陈斌, bchen63@163.com

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