Effects of a new buffer magnetic circuit on preionization and discharge in a P70 Hall thruster

Journal of Propulsion Technology ›› 2011, Vol. 32 ›› Issue (6): 823-827.

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Effects of a new buffer magnetic circuit on preionization and discharge in a P70 Hall thruster

School of Electrical Engineering and Automation Harbin Institute of Technology, Harbin 150001, China;School of Computer and Information Engineering Harbin University of Commerce, Harbin 150028, China;School of Electrical Engineering and Automation Harbin Institute of Technology, Harbin 150001, China;School of Electrical Engineering and Automation Harbin Institute of Technology, Harbin 150001, China;School of Electrical Engineering and Automation Harbin Institute of Technology, Harbin 150001, China

Published:2021-08-15

P70霍尔推力器新型缓冲腔磁路对预电离及放电的影响

韩轲,魏立秋,纪延超,于达仁

哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨 150001;哈尔滨商业大学计算机与信息工程学院,黑龙江哈尔滨 150028;哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨 150001;哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨 150001;哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨 150001

作者简介:韩轲 (1980—),男,博士生,讲师,研究领域为电推进。E-mail:hanke@hit.edu.cn
基金资助:
国家自然科学基金(51007014,50877018);黑龙江省教育厅科学技术研究项目(12511138)。

Abstract

Abstract: To recycle fast electron energy from discharge channel into buffer chamber in a P70 Hall thruster, the characteristics of magnetic field were considered to improve the preionization ratio in the buffer chamber. The first characteristic is the higher magnetic flux density. The second characteristic is the negative gradient from gas distributor to discharge channel. The new magnetic circuit is designed by FEMM magnetic field calculation software. The magnetic field of new magnetic circuit satisfied the above characteristics on the premise of not changing the optimized magnetic field in the ionization and acceleration channel. Experimental results indicate that the amplitude of discharge current low frequency oscillation is smaller. The new magnetic circuit is helpful for prolonging the thruster lifetime and improving separation of ionization zone as well as the acceleration zone in discharge channel. 

Key words: Hall thruster; Magnetic circuit; Buffer chamber; Preionization

摘要： 为有效利用从P70霍尔推力器放电通道进入缓冲腔的快电子能量,考虑两个磁场特征以提高缓冲腔预电离率。一是提高磁感应强度,二是缓冲腔内从气体分配器到放电通道方向的负梯度。采用FEMM有限元磁场计算软件,在不改变推力器电离和加速通道内优化磁场特征的前提下,设计的新型缓冲腔磁路满足上述磁场特征。放电实验结果表明,在新型缓冲腔磁路下放电电流低频振荡幅值更小。新型磁路有助于延长推力器寿命,有助于电离和加速通道内电离与加速区的分离。

关键词: 霍尔推力器;磁路;缓冲腔;预电离

韩轲,魏立秋,纪延超,于达仁. P70霍尔推力器新型缓冲腔磁路对预电离及放电的影响[J]. 推进技术, 2011, 32(6): 823-827.

References

[2] 毛根旺,韩先伟,杨涓,等.电推进研究的技术状态和发展前景[J].推进技术, 2000, 21(5).(MAO Gen-wang, HAN Xian-wei, YANG Juan, et al.Research state of electric propulsion and its development prospect [J].Journal of Propulsion Technology, 0,1(5).)
[3] Bugrova A I, Lipatov A S, Kharchevnikov V K, et al.SPT-ATON tests at kurchatov institute stands [R].IEPC 1995-067.
[4] Bechu S, Gascon N, Roche S, et al.Comparison between two kinds of Hall thrusters:SPT100 and ATON [R].AIAA 2000-3524.
[5] Morozov A I, Bugrova A I, Desyatskov A V.ATON-thruster plasma accelerator [J]. Plasma Physics Reports, 7,3(7):587-597.
[6] Bishaev A M, Bugrova A I, Desyatskov AV.Spectral characteristics of SPT-ATON plasma radiation [C].USA: Proc.3rd International Conference on Spacecraft Propulsion, 2000:887-880.
[7] Yu D R, Wei L Q, Zhao Z Y.Effect of preionization in aton-type Hall thruster on low frequency oscillation [J].Physics of Plasmas, 8,5(2).
[8] Yoshikawa K, Toku H, Ueda M,et al.Hall accelerator with preionization discharge [P].United States Patent:2,1.
[9] Morozov A I, Bugrova A I, Desiatskov A D,et al.Research on two-stage engine SPT-MAG[R].IEPC 2003-290.
[10] Bugrova A I, Desyatskov A V, Kharchevnikov V K,et al.Investigation of physical processes in SPT MAG [R].IEPC 2005-146.
[11] Bugrova A I, Bishaev A M, Desyatskov A V, et al.Spectral investigation of SPT MAG insulator erosion [R].IEPC 2005-167.
[12] Bugrova A I, Desyatskov A V, Kharchevnikov V K, et al.Two-modes operation of SPT of second generation [R].IEPC 2007-221.
[13] 廖宏图,汪兆凌,康小录,等.稳态等离子体推力器磁场设计与数值分析[J].推进技术, 2002, 23(3).(LIAO Hong-tu, WANG Zhao-ling, KANG Xiao-lu,et al.Design and numerical analysis of the magnetic field of stationary plasma thruster [J].Journal of Propulsion Technology, 2,3(3).)
[14] Hofer R R, Jankovsky R S, Gallimore A D.High-specific impulse Hall thrusters, part 1:influence of current density and magnetic field [J].Journal of Propulsion and Power, 6,2(4).
[15] Zhurin V V, Kaufman H R, Robinson R S.Physics of closed drift thrusters [J].Plasmas Sources Science and Technology, 9,8:1-20.
[16] Yu D R, Wei L Q, Wei Z L.Experimental study on low frequency oscillation in a plume of Hall thrusters [J].Plasmas Sources Science and Technology, 8,7(2).
[17] Li J, Yu D R, Li H.Study on plasma lens of Hall thrusters in different operating modes[R].IEPC 2007-316.
[18] Yu D R, Li J, Liu H, et al.Study on the relation between discharge voltage and magnetic field topography in a Hall thruster discharge channel [J].Contributions to Plasma Physics, 9,9(6):413-421.
[19] Yu D R, Li H, Wu Z W, et al.Experimental and theoretical study on effects of magnetic field topology on near wall conductivity in a Hall thruster [J].Physics of Plasmas, 9,6(1).
[20] Morozov A I, Savelyev V V.Fundamentals of stationary plasma thruster theory [M].USA:Reviews of Plasma Physics, 2000.
[21] Szabo James J.Fully kinetic numerical modeling of a plasma thruster [D].USA:Massachusetts Institute of Technology, 2001.
[22] 菅井秀朗.等离子体电子工程学 [M].北京:科学出版社,2005:40-43.

Effects of a new buffer magnetic circuit on preionization and discharge in a P70 Hall thruster

P70霍尔推力器新型缓冲腔磁路对预电离及放电的影响

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