大尺寸电极条件下大电流真空电弧特性的仿真

Abstract
Figure/Table
References
Related Citation (5)

Download: PDF (1508 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract In this paper, based on the magnetohydrodynamic(MHD) model of high current vacuum arc (HCVA), the HCVA characteristics with big-size electrode are simulated and analyzed; moreover, the influence of arc currents and axial magnetic fields(AMFs) on HCVA characteristics is also analyzed. The simulation results show that the densities of ion number and axial current as well as plasma pressure and electron temperature increase with the increase of arc current, while the plasma velocity decreases. Furthermore, the distributions of these parameters become more and more nonuniform, and the concentration of arc column also is intensified. When arc current reaches to 60kA, current constriction also appears near cathode side. If AMFs are stronger, the plasma velocity becomes faster, while the other plasma parameters gets smaller, and their distributions become more and more homogeneous. The increase of AMFs also can inhibit the current constriction of cathode side. Finally, a comparison is made between simulation result and experimental result of vacuum arc characteristics under actual AMF, and simulation results of HCVA with big-size electrode are in agreement with arc photographs. MHD model of HCVA with big-size electrode can supply some theoretical supports for design of generator vacuum circuit breakers.

Key words： High-current vacuum arc big-size electrode arc current axial magnetic field

Received: 31 October 2011 Published: 28 November 2013

PACS:

TM561

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Wang Lijun
	Hu Lilan
	Zhou Xin
	Jia Shenli
	Wang Haijing
	Shi Zongqian

Cite this article:

Wang Lijun,Hu Lilan,Zhou Xin等. Simulation of High-Current Vacuum Arc Characteristics with Big-Size Electrode Conditions[J]. Transactions of China Electrotechnical Society, 2013, 28(2): 163-170.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I2/163

[1] Boxman R L. Magnetic constriction effects in high-current vacuum arcs prior to the release of anode vapor[J]. J. App. Phys., 1977, 48(6): 2338-2345.
[2] Beilis I I, Keidar M, Boxman R L, et al. Theoretical study of plasma expansion in a magnetic field in a disk anode vacuum arc[J]. J. Appl. Phys., 1998, 83(2): 709-717.
[3] Schade E, Shmelev D L. Numerical simulation of high-current vacuum arcs with an external axial magnetic field[J]. IEEE Trans. on Plasma Sci., 2003, 31(5): 890-901.
[4] Hartmann W, Lawall A, Renz R, et al. Development of a FEM Simulation of Axial Magnetic Field Vacuum Arcs[C]. XXIII International Symposium on Discharges and Electrical Insulation in Vacuum, Romania, 2008: 259-263.
[5] 尚文凯, 王季梅. 大电流真空电弧收缩现象的研究[J]. 中国电机工程学报, 1989, 9(2): 32-41.
Shang Wenkai, Wang Jimei. The research of constriction phenomena high current vacuum arc[J]. Proceedings of the CSEE, 1989, 9(2): 32-41.
[6] 王毅, 王季梅. 真空电弧等离子体弧柱现象模型分析[J]. 中国电机工程学报, 1992, 12(5): 53-57.
Wang Yi, Wang Jimei. Model and analysis of vacuum arc plasma column phenomenon[J]. Proceedings of the CSEE, 1992, 12(5): 53-57.
[7] 王立军, 贾申利, 史宗谦, 等. 真空电弧磁流体动力学模型与仿真研究[J]. 中国电机工程学报, 2005, 25(4): 113-118.
Wang Lijun, Jia Shenli, Shi Zongqian, et al. MHD model and simulation research of vacuum arc[J]. Proceedings of the CSEE, 2005, 25(4): 113-118.
[8] Yang D, Wang L, Jia S, et al. Experimental investigation of anode activities in high-current vacuum arc[J]. IEEE Trans. Plasma. Sci., 2010, 38(2): 206-213.
[9] Kutzner J, Miller H C. Integrated ion flux emitted from the cathode spot region of a diffuse vacuum arc[J]. J. Phys. D: Appl. Phys., 1992, 25: 686-693.
[10] Kimblin C W. Erosion and ionization in the cathode spots region of vacuum arcs[J]. J. Appl. Phys., 1973, 44(7): 3074-3081.
[11] 王立军. 真空电弧磁流体动力学模型及仿真研究[D]. 西安：西安交通大学, 2006.
[12] 王立军, 贾申利, 史宗谦, 等. 大电流真空电弧磁流体动力学模型与仿真[J]. 中国电机工程学报, 2006, 26 (22): 174-179.
Wang Lijun, Jia Shenli, Shi Zongqian, et al. MHD model and simulation of high-current vacuum arc[J]. Proceedings of the CSEE, 2006, 26(22): 174-180.
[13] Shang W, Schade E, Fink H, et al. Optical investigation of dynamic vacuum arc mode changes with different axial magnetic field contacts[J]. IEEE Trans. Plasma Sci., 2003, 31(5): 923-928.
[14] Logatchev A A, Chaly A M, Lisnyak M V, et al, Investigation of continual component of high-current vacuum arc radiation in the optical spectral range[C]. 24th International Symposium on Discharges and Electrical Insulation in Vacuum, 2010: 407-410.