Hybrid Numerical Simulation of Decomposition of SF6 Under Negative DC Partial Discharge Process

To reveal the decomposition mechanism of SF6 under negative DC partial discharge (PD), a PD hybrid numerical model of SF6 was constructed based on fluid dynamics and plasma chemical reaction, and then the electronic properties under the single PD current pulse were systematically discussed. The results show that the area with higher average electron energy is located near the tip of the needle, and the electron density is small in the cathode sheath and mainly concentrated close to the needle electrode. When PD current pulse rises, the electron density increases as the time of PD increases, and the center of the electron cloud is located on the axis of symmetry. When PD current pulse drops, with the development of the PD, it shows that the density of electron number decreases gradually and the electron cloud moves away from the axis of symmetry gradually, in addition, the generation and dissipation of electron almost occurs in the same area.

[1]  Kazimierz Adamiak,et al.  FEM-FCT Based 2D Simulation of Trichel Pulses in Air , 2010, 2010 IEEE Industry Applications Society Annual Meeting.

[2]  R. Krishna,et al.  The Maxwell-Stefan approach to mass transfer , 1997 .

[3]  L Niemeyer,et al.  Leader propagation in uniform background fields in SF6 , 2009 .

[4]  A. Settaouti,et al.  Monte Carlo simulation of corona discharge in SF6 , 2010 .

[5]  R. Seethapathy,et al.  Characterization of GIS Spacers Exposed to SF6 Decomposition Products , 1987, IEEE Transactions on Electrical Insulation.

[6]  D. J. Economou,et al.  Fluid simulations of radio frequency glow discharges: Two‐dimensional argon discharge including metastables , 1993 .

[7]  R. J. Van Brunt,et al.  Plasma chemical model for decomposition of SF6 in a negative glow corona discharge , 1994 .

[8]  V. M. Donnelly,et al.  Simulation of a direct current microplasma discharge in helium at atmospheric pressure , 2006 .

[9]  Annemie Bogaerts,et al.  Numerical study of the plasma chemistry in inductively coupled SF6 and SF6/Ar plasmas used for deep silicon etching applications , 2011 .

[10]  A. Faenov,et al.  Spectroscopic characterization of an ultrashort-pulse-laser-driven Ar cluster target incorporating both Boltzmann and particle-in-cell models. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[11]  L Niemeyer,et al.  Partial discharges and breakdown at protrusions in uniform background fields in SF6 , 2008 .

[12]  Numerical Simulation of Direct Current Glow Discharge in Air with Experimental Validation , 2012 .

[13]  D. J. Economou,et al.  Fluid simulations of glow discharges: Effect of metastable atoms in argon , 1993 .

[14]  James K. Olthoff,et al.  Electron Interactions With SF6 , 2000 .

[15]  J. Boeuf,et al.  Two-dimensional model of a capacitively coupled rf discharge and comparisons with experiments in the Gaseous Electronics Conference reference reactor. , 1995, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[16]  W. Goedheer,et al.  Relaxation phenomena after laser‐induced photodetachment in electronegative rf discharges , 1993 .

[17]  L. Pitchford,et al.  Solving the Boltzmann equation to obtain electron transport coefficients and rate coefficients for fluid models , 2005 .

[18]  Proceedings of the 6th international conference on properties and applications of dielectric materials , 2000, Proceedings of the 6th International Conference on Properties and Applications of Dielectric Materials (Cat. No.00CH36347).

[19]  Effect of radial ion diffusion on simulation of positive corona discharge in SF/sub 6/ gas , 2000, Proceedings of the 6th International Conference on Properties and Applications of Dielectric Materials (Cat. No.00CH36347).

[20]  Magnus Callavik,et al.  Compact gas-insulated systems for high voltage direct current transmission: Design and testing , 2016, 2016 IEEE/PES Transmission and Distribution Conference and Exposition (T&D).

[21]  A. Fridman,et al.  Atmospheric pressure dc corona discharges: operating regimes and potential applications , 2009 .

[22]  Hiroshi Kuwahara,et al.  SF6 Gas Analysis Technique and its Application for Evaluation of Internal Conditions in SF6 Gas Equipment , 1981, IEEE Transactions on Power Apparatus and Systems.

[23]  R. J. Van Brunt,et al.  Electron‐transport, ionization, attachment, and dissociation coefficients in SF6 and its mixtures , 1988 .

[24]  A. Settaouti.  Monte Carlo simulation of positive corona discharge in SF6 , 2013 .

[25]  A. Pedersen.  Criteria for Spark Breakdown in Sulfur Hexafluoride , 1970 .

[26]  C. Ferreira,et al.  Experimental and theoretical investigation of a N2-O2 DC flowing glow discharge , 1995 .

[27]  K. A. Smith,et al.  Absolute partial cross sections for electron impact ionization of SO2 from threshold to 1000 eV , 1996 .

[28]  C. S. Davies,et al.  Computer simulation of rapidly developing gaseous discharges , 1971 .

[29]  George E. Georghiou,et al.  Numerical modelling of negative discharges in air with experimental validation , 2011 .

[30]  E. Gogolides,et al.  A global model for SF6 plasmas coupling reaction kinetics in the gas phase and on the surface of the reactor walls , 2009 .

[31]  S. Pancheshnyi,et al.  Two-dimensional numerical modelling of the cathode-directed streamer development in a long gap at high voltage , 2003 .

[32]  M. LeVan,et al.  Mixture diffusion in nanoporous adsorbents: equivalence of Fickian and Maxwell-Stefan approaches. , 2008, The journal of physical chemistry. B.

[33]  F. Chu,et al.  SF6 Decomposition in Gas-Insulated Equipment , 1986, IEEE Transactions on Electrical Insulation.

[34]  Wei He,et al.  Numerical simulation and experimental validation of a direct current air corona discharge under atmospheric pressure , 2012 .

[35]  Tudor Alexandru Ilas,et al.  Fluid model used for simulating streamer breakdown in SF6 and SF6-N2 mixtures , 2016, 2016 International Conference and Exposition on Electrical and Power Engineering (EPE).

[36]  Kroesen,et al.  Boundary conditions in fluid models of gas discharges , 2000, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[37]  Bakhtier Farouk,et al.  Simulation of dc atmospheric pressure argon micro glow-discharge , 2006 .

[38]  M. Seeger,et al.  Parameter dependence of gaseous insulation in SF6 , 2013, IEEE Transactions on Dielectrics and Electrical Insulation.

[39]  B. Lindsay,et al.  Absolute partial cross sections for electron-impact ionization of SF6 from threshold to 1000 eV , 2001 .

[40]  George E. Georghiou,et al.  Numerical modelling of atmospheric pressure gas discharges leading to plasma production , 2005 .

[41]  K. Ninomiya,et al.  Development of Compact 500 KV 8000 A Gas Insulated Transmission Line Study on Insulation Design , 1984, IEEE Power Engineering Review.

[42]  Morrow.  Properties of streamers and streamer channels in SF6. , 1987, Physical review. A, General physics.

[43]  S. Dhali,et al.  Numerical simulation of streamers in SF6 , 1988 .

[44]  Bowen Tang,et al.  Correlation Characteristics between Gas Pressure and SF6 Decomposition under Negative DC Partial Discharge , 2017 .

[45]  N. Wiegart,et al.  Inhomogeneous field breakdown in GIS-the prediction of breakdown probabilities and voltages. III. Discharge development in SF/sub 6/ and computer model of breakdown , 1988 .

[46]  B. Lu,et al.  The role of photoionization in negative corona discharge: The influences of temperature, humidity, and air pressure on a corona , 2017 .

[47]  P. Sattari.  FEM-FCT Based Dynamic Simulation of Trichel Pulse Corona Discharge in Point-Plane Configuration , 2011 .