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Parameter Analysis for Arc Snubber of EAST Neutral Beam Injector 被引量：4

Parameter Analysis for Arc Snubber of EAST Neutral Beam Injector
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摘要 According to the B-H curve and structural dimensions of the snubber by the Fink- Baker Method, the inductive voltage and the eddy current of any core tape with the thickness of the saturated regions are derived when the accelerator breakdown occurs. Using the Ampere＇s law, in each core tape, the eddy current of the core lamination is equal to the arc current, and the relation of the thickness of the saturated regions for different laminations can be deduced. The total equivalent resistance of the snubber can be obtained. The transient eddy current model based on the stray capacitance and the equivalent resistance is analyzed, and the solving process is given in detail. The exponential time constant and the arc current are obtained. Then, the maximum width of the lamination and the minimum thickness of the core tape are determined. The experimental time constant of the eddy current obtained, with or without the bias current, is approximately the same as that by the analytical method, which proves the accuracy of the adopted assumptions and the analysis method. According to the B-H curve and structural dimensions of the snubber by the Fink- Baker Method, the inductive voltage and the eddy current of any core tape with the thickness of the saturated regions are derived when the accelerator breakdown occurs. Using the Ampere＇s law, in each core tape, the eddy current of the core lamination is equal to the arc current, and the relation of the thickness of the saturated regions for different laminations can be deduced. The total equivalent resistance of the snubber can be obtained. The transient eddy current model based on the stray capacitance and the equivalent resistance is analyzed, and the solving process is given in detail. The exponential time constant and the arc current are obtained. Then, the maximum width of the lamination and the minimum thickness of the core tape are determined. The experimental time constant of the eddy current obtained, with or without the bias current, is approximately the same as that by the analytical method, which proves the accuracy of the adopted assumptions and the analysis method.
作者 王海田 李格 曹亮 党晓强 傅鹏
机构地区 Department of Electrical Engineering Department of Electronic and Information Engineering Institute of Plasma physics
出处 《Plasma Science and Technology》 SCIE EI CAS CSCD 2010年第4期499-505,共7页 等离子体科学和技术（英文版）
基金 supported by Research Fund for the Doctoral Program of Higher Education of China (No.20060248012) Shanghai-Canada Research Council cooperation (06SN07113) Auxiliary Heating Project of EAST upgrade, National Program on Key Basic Research Project (973 Program) of China (No.2010GB108003)
关键词 EAST NBI B-H curve snubber Ampere＇s law eddy current arc current EAST NBI, B-H curve, snubber, Ampere＇s law, eddy current, arc current
分类号 TL629.1 [核科学技术—核技术及应用]
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参考文献13

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同被引文献21

  • 1胡立群,张晓东,姚若河.EAST托卡马克的中性束注入方案[J].核技术,2006,29(2):149-152. 被引量：17
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  • 3HAUGHIAN J, LOU K, BYRNS R, et al. Fabrication and testing of the flexible transmission line to the TFTR neutral beam ion sources [C] // Proceedings of the 10^th Symposium on Fusion Engineering. Philadelohia, USA: [s.n.],1983:1629-1633.
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  • 6CLAESEN R, BAUR U, BERTOLINI E, et al. The JET neutral injection 160 kV transmission lines, the associated snubbers and the SF6 tower for the termination of the transmission lines housing of the snubbers and voltage breaks[C]//The 14^th Symposium on Fusion Technology. Congress Center of the Palais des Papes. Avignon, France: Pergamon Press. 1986: 941-947.
  • 7LI G, ZHOU Y G.Compact digital high voltage cnarger[C]//IEEE. PAC.Knoxville, Tennessee:IEEE,2005: 3964-3966.
  • 8BRAMBILLA A,DALLAGO E,BERTOLOZZI P L.Circuit analysis of a power pulse generator for electrostatic precipitators[J].IEEE, 1990,137(2):83-88.
  • 9WATANABE K, MIZUNO M. Development of a high performance core snubber for high power neutral beam injectors[J]. Review of Scientific Instruments, 1998, 69(12): 4136-4141.
  • 10MONDINO P L, BAYETTI P, PIETRO E D, et al. ITER neutral beam system[J]. Nuclear Fusion, 2000, 40(3):501-507.

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Plasma Science and Technology
2010年 第4期

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