线路避雷器配置方式对山区110 kV输电线路防雷性能影响研究
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摘要
为提高山区输电线路抵御雷害风险的能力,为输电线路配置避雷器是目前较为常见的措施之一,如何科学合理的配置线路避雷器则是提高线路防雷措施有效性的关键。结合某地区近年来雷电活动规律及线路雷击跳闸数据,建立雷击仿真模型,研究了杆塔接地电阻、线路档距以及线路避雷器配置方式对输电线路耐雷水平的影响。结果表明:线路杆塔接地电阻和档距对线路的耐雷水平均有不同程度影响,采用线路避雷器能有效提高线路耐雷水平;通过计算避雷器不同配置方式下线路的耐雷水平,提出了线路避雷器的配置建议。
In order to improve the resisting lightning ability in mountain area, application of line arrester is one of the effective methods in lightning protection. How to configure the line arrester scientifically and rationally is the key to improve the effectiveness of the line lightning protection measures. Combined with the law of lightning activity and lightning trip data, the lightning simulation model is set up to study the influence of tower grounding resistance, line span and line arrester configuration upon transmission line lightning withstand level. The results show that both tower grounding resistance and span have influence upon the lightning withstand level, the line arrester can effectively improve the lightning withstand level. Through the calculation of lightning arrester configuration under different protection level of transmission line, the line lightning arrester configuration is suggested. The study can provide the basis and guidance for the transmission line lightning protection in mountainous areas.
In order to improve the resisting lightning ability in mountain area, application of line arrester is one of the effective methods in lightning protection. How to configure the line arrester scientifically and rationally is the key to improve the effectiveness of the line lightning protection measures. Combined with the law of lightning activity and lightning trip data, the lightning simulation model is set up to study the influence of tower grounding resistance, line span and line arrester configuration upon transmission line lightning withstand level. The results show that both tower grounding resistance and span have influence upon the lightning withstand level, the line arrester can effectively improve the lightning withstand level. Through the calculation of lightning arrester configuration under different protection level of transmission line, the line lightning arrester configuration is suggested. The study can provide the basis and guidance for the transmission line lightning protection in mountainous areas.
引文
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[13]解广润.电力系统过电压[M].北京:水利电力出版社,1985.
[14]HE J,TU Y,ZENG R,et al.Numeral analysis model for shielding failure of transmission line under lightning stroke[J].IEEE Transactions on Power Delivery,2005,20(2):815-822.
[15]邓红雷,李述文,戴栋.基于层次化、差异化的架空输电线路雷击风险评估[J].电力系统保护与控制,2016,44(04):69-75.DENG Honglei,LI Shuwen,DAI Dong.Lightning risk assessment of overhead transmission line based on hierarchical and differentiation[J].Power System Protection and Control,2016,44(04):69-75.
[2]程更生,蒲路.避雷器在输电线路防雷中若干问题的探讨[J].电瓷避雷器,2005(3):38-40.CHEN Gengsheng,PU LU.Discussion on the practical applications of MOA for transmissionline lighting protection[J].Insulators and Surge Arresters,2005(3):38-40.
[3]施围,郭洁.电力系统过电压计算[M].北京:高等教育出版社,2006.
[4]朱芸,王剑,潘劲东,等.输电线路防雷性能评价和综合优化的研究[J].华北电力技术,2008,27(2):18-20.ZHU Yun,WANG Jian,Pan Jindong,et al.Study on Antilighting performance evaluation and integrated optimization of transmission line[J].North China Electric Power,2008,27(2):18-20.
[5]任晓娜,吴广宁,付龙海,等.采用避雷器后输电线路仿真模型的建立及应用现状[J].电瓷避雷器,2005(4):26-29.REN Xiaona,WU Guangning,FU Longhai,et al.Research on transmission line system simulation models with line arrester and its application[J].Insulators and Surge Arresters,2005(4):26-29.
[6]焦夏男,聂一雄.架空线路弧垂和绑扎线对雷电传播影响的研究[J].陕西电力,2017,45(5):59-63.JIAO Xianan,NIE Yixiong.Study on the influence of sag and binding wire upon lighting propagation characteristics[J].Shaanxi Electric Power,2017,45(5):59-63.
[7]宫杰.输电线路防雷研究与设计[D].北京:华北电力大学,2008.
[8]张志敬,500 kV同杆双回输电线路耐雷性能研究[D].重庆:重庆大学,2002.
[9]彭向阳,王锐,周华敏,等.基于不平衡绝缘的同塔多回输电线路差异化防雷技术及应用[J].广东电力,2016,29(6):109-116.PENG Xiangyang,WANG Rui,ZHOU Huamin,et al.Differentiated lighting protection technology and its application based on unbalanced insulation for multicircuit power transmission lines on the same tower[J].Guangdong Electric Power,2016,29(6):109-116.
[10]YU J L,FAN Y D,WANG J G,et al.Characteristics of the horizontal electric field associated with nearby lightning return strokes[J].Journal of Atmospheric and Solar Terrestrial Physics,2017,154:207-216.
[11]陆鸿,李晓东,康伟.山区配电架空线路防雷害分析与减灾对策[J].供用电,2016,33(9):29-34+40.LU Hong,LI Xiaodong,KANG Wei.Analysis and countermeasures of disaster reduction in anti lightning distribution overhead line[J].Distribution and Utilization,2016,33(9):29-34+40.
[12]RAIZER Y P.Lightning physics and effects[J].Atmospheric Research,2013,s 129-130(12):63-64.
[13]解广润.电力系统过电压[M].北京:水利电力出版社,1985.
[14]HE J,TU Y,ZENG R,et al.Numeral analysis model for shielding failure of transmission line under lightning stroke[J].IEEE Transactions on Power Delivery,2005,20(2):815-822.
[15]邓红雷,李述文,戴栋.基于层次化、差异化的架空输电线路雷击风险评估[J].电力系统保护与控制,2016,44(04):69-75.DENG Honglei,LI Shuwen,DAI Dong.Lightning risk assessment of overhead transmission line based on hierarchical and differentiation[J].Power System Protection and Control,2016,44(04):69-75.