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-  2015 

棒-板电极正直流电晕起始判据对比 Comparative of positive DC corona inception criteria for a rod-plane electrode

Keywords: 正直流电晕,棒-板电极,起始判据,光电离模型

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Abstract:

将电晕效应控制在合理的水平是高压直流输变电设备金具设计的关键问题,而电晕起始判据的研究对于电晕控制而言至关重要.为此,针对正极性直流电压作用下的半球头棒-板电极结构,对比分析了Ortéga公式、Lowke公式、流注起始场强公式、流注起始临界电荷判据和气体自持放电的光电离模型等5种电晕起始判据.结果表明:气体自持放电的光电离模型计算精度最高,平均绝对百分比误差小于7%,并且物理意义明确,相对最适合作为高压直流输变电设备金具的电晕起始判据

References

[1]  Isa H,Sonoi Y,Hayashi N.Breakdown process of a rod-to-plane gap in atmospheric air under dc voltage stress[J].IEEE Transactions on Electrical Insulation,1991,26(2):291-299.
[2]  Loeb L B.Electrical Coronas:Their Basic Physical Mechanisms[M].Berkeley:University of California Press,1965.
[3]  中国南方电网有限责任公司.±800kV直流输电技术研究[M].北京:中国电力出版社,2006.
[4]  赵宇明,刘磊,张华赢,等.特高压直流线路电磁环境指标计算及测量[J].南方电网技术,2011,5(3):1-5.
[5]  关根志.高电压工程基础[M].北京:中国电力出版社,2003.
[6]  Aleksandrov G N.Physical conditions for the formation of an alternating current corona discharge[J].Soviet Physics-Technical Physics,1956,1(8):1714-1726.
[7]  Salam M A,Allen N L.Current-voltage characteristics of corona in rod-plane gaps as influenced by temperature[J].IEE Proceedings-Science,Measurement and Technology,2003,150(3):135-139.
[8]  Zheng Y,He J,Zhang B,et al.Surface electric field for negative corona discharge in atmospheric pressure air[J].IEEE Transactions on Plasma Science,2011,39(8):1644-1651.
[9]  Salam M A,Allen N L.Inception of corona and rate of rise of voltage in diverging electric field[J].IEE Proceedings,1990,137(4):217-220.
[10]  刘磊,李敏,李锐海,等.高海拔特高压直流试验线路电磁环境初步试验研究[J].南方电网技术,2010,4(6):49-53.
[11]  Tsuneysu I,Nisijima K,Izawa Y.Flashover phenomena in positive rod-to-plane air gaps under impulse and DC voltages[J].Electrical Engineering in Japan,1992,112(6):452-459.
[12]  汪沨,方志,邱毓昌.高压直流GIS中绝缘子的表面电荷积聚的研究[J].中国电机工程学报,2005,25(3):105-109.
[13]  Yamazaki K,Olsen R G.Application of a corona onset criterion to calculation of corona onset voltage of stranded conductors[J].IEEE Transactions on Dielectrics and Electrical Insulation,2004,11(4):674-680.
[14]  郑跃胜,何金良,张波.正极性电晕在空气中的起始判据[J].高电压技术,2011,27(3):752-757.
[15]  Bian X,Wang L,MacAlpine J M K,et al.Positive corona inception voltages and corona currents for air at various pressures and humidities[J].IEEE Transactions on Dielectrics and Electrical Insulation,2010,17(1):63-70.
[16]  孙才新,司马文霞,舒立春.大气环境与电气外绝缘[M].北京:中国电力出版社,2002.
[17]  Nasser E,Heiszler M.Mathematical-physical model of the streamer in nonuniform fields[J].Journal of Applied Physics,1974,45(8):3396-3401.
[18]  Phillips D B,Olsen R G,Pedrow P D.Corona onset as a design optimization criterion for high voltage hardware[J].IEEE Transactions on Dielectrics and Electrical Insulation,2000,7(6):744-751.
[19]  Sarma M P,Janischewskyj D.DC corona on smooth conductors in air[J].Proceedings of IEE,1969,116(1):161-166.
[20]  张贵新,王蓓,王强,等.直流电压下盆式绝缘子表面电荷积聚效应的仿真[J].高电压技术,2010,36(2):335-339.
[21]  Peek F W.Dielectric phenomena in high voltage engineering[M].New York:Mc-Graw-Hill,1929.
[22]  Fofana I,Beroual A.A predictive model of positive discharge in long air gaps under pure and oscillating impulse shapes[J].Journal of Physics D:Applied Physics,1997,30(11):1653-1667.
[23]  Lowke J J,Alessandro F D.Onset corona fields and electrical breakdown criteria[J].Journal of Physics D:Applied Physics,2003,36(21):2673-2682.

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