1000kV交流同塔双回输电线路刚性跳线电晕特性Experimental Test on Corona Characteristics of Rigid Jumper for 1 000 kV UHVAC Double Circuit Transmission Lines on the Same Tower
全姗姗;谢梁;谷莉莉;曹晶;彭宗仁;陈小海;
摘要(Abstract):
1 000 kV特高压交流同塔双回输电线路由于电场间的相互影响,其电晕问题更为突出,根据示范工程开展的同塔双回耐张塔跳线及金具的电场计算结果,需要对跳线及其金具结构进行优化。为获得优化后的跳线及金具电晕放电特性,利用紫外成像仪对笼式和铝管式2类不同结构刚性跳线开展电晕特性试验研究,找出有明显电晕放电的跳线及金具,确定放电位置和电晕起始电压试验值。采用三维有限元方法建立仿真模型,计算场强,分析产生电晕的原因。研究结果不仅验证了电晕特性研究方法的有效性,同时表明优化后的跳线及金具能有效降低电场强度,防晕效果显著。根据研究成果,推荐采用的刚性跳线及配套连接金具满足特高压同塔双回输电线路的运行要求,已应用于示范工程的设计建设中。
关键词(KeyWords): 特高压;同塔双回;刚性跳线;金具;电晕试验;有限元法;电场计算
基金项目(Foundation):
作者(Author): 全姗姗;谢梁;谷莉莉;曹晶;彭宗仁;陈小海;
Email:
DOI: 10.13335/j.1000-3673.pst.2014.03.039
参考文献(References):
- [1]汪泉弟,褚旭,杨帆,等.500 kV同塔双回紧凑型输电线路输电能力分析[J].电网技术,2011,35(11):114-119.Wang Quandi,Chu Xu,Yang Fan,et al.Analysis on transmission capability of 500 kV double circuits on the same tower compact transmission lines[J].Power System Technology,2011,35(11):114-119(in Chinese).
- [2]龚有军,朱普轩,曾嵘.750 kV同塔同窗同相序紧凑型输电技术的可行性研究[J].电网技术,2008,32(13):50-54.Gong Youjun,Zhu Puxuan,Zeng Rong.Feasibility study of two compact750 kV circuits with same phase sequence in the same tower window[J].Power System Technology,2008,32(13):50-54(in Chinese).
- [3]霍锋,万启发,谷定燮,等.1 000 kV与500 kV交流线路同塔架设相间放电特性及绝缘配合[J].中国电机工程学报,2012,32(34):142-150.Huo Feng,Wan Qifa,Gudingxie,et al.Flashover characteristics and insulation coordination of phase-to-phase air-gaps for AC transmission line with 1 000 kV double-circuit and 500 kV double-circuit on the same tower[J].Proceedings of the CSEE,2012,32(34):142-150(in Chinese).
- [4]焦保利,霍锋,陈勇,等.特高压同塔双回交流线路的外绝缘特性[J].高电压技术,2009,35(7):1526-1532.Jiao Baoli,Huo Feng,Chen Yong,et al.External insulation characteristic for UHV AC transmission line with double-circuit on the same tower[J].High Voltage Engineering,2009,35(7):1526-1532(in Chinese).
- [5]曹晶,张勤,杨迎建,等.高海拔交流输电线路金具电晕放电特性[J].高电压技术,2011,37(12):2924-2929.Cao Jing,Zhang Qin,Yang Yingjian,et al.Corona discharge characteristic for fittings of high altitude AC transmission line[J].High Voltage Engineering,2011,37(12):2924-2929(in Chinese).
- [6]谷琛,范建斌,殷禹,等.-1 000 kV特高压直流输电系统设备电晕特性[J].高电压技术,2012,38(12):3182-3188.Gu Chen,Fan Jianbin,Yin Yu,et al.Corona characteristic of power equipments used in-1 000 kV UHV DC system[J].High Voltage Engineering,2012,38(12):3182-3188.
- [7]曾庆禹.特高压输电线路电气和电晕特性研究[J].电网技术,2007,31(19):1-8.Zeng Qingyu.Study on electric characteristic and corona performance of UHV AC transmission line[J].Power System Technology,2007,31(19):1-8(in Chinese).
- [8]黄廷政,莫娟,彭宗仁,等。高海拔地区330 kV线路用FD型防振锤防晕性能优化[J].电网技术,2012,36(6):262-265.Huang Tingzheng,Mo Juan,Peng Zongren,et al.Optimization of anti-corona performance of FD-type damper for 330kV transmission lines in high altitude localities[J].Power System Technology,2012,36(6):262-265(in Chinese).
- [9]陈勇,万启发,谢梁,等.1 000 kV交流输电线路导线的电晕特性[J].高电压技术,2007,33(11):43-45.Chen Yong,Wan Qifa,Xie Liang,et al.Corona characteristics of conductors for 1 000 kV AC transmission lines[J].High Voltage Engineering,2007,33(11):43-45(in Chinese).
- [10]谢梁,谷莉莉,郑怀清,等.特高压交流刚性跳线金具电晕试验[J].高电压技术,2009,35(3):470-474.Xie Liang,Gu Lili,Zheng Huaiqing,et al.Corona test for UHVAC rigid jumper[J].High Voltage Engineering,2009,35(3):470-474(in Chinese).
- [11]陈建忠,李勇伟,张小力.750 kV输电线路耐张塔刚性跳线的研究开发[J].电力建设,2006,27(10):19-22.Chen Jianzhong,Li Yongwei,Zhang Xiaoli.Development of rigid jumper for strained towers of 750 kV transmission line[J].Electric Power Construction,2006,27(10):19-22(in Chinese).
- [12]李靖,彭宗仁,刘鹏,等.特高压交流铝管式刚性跳线电场计算和分析[J].高电压技术,2010,36(1):205-211.Li Jing,Peng Zongren,Liu Peng,et al.Electric field calculation and analysis of UHVAC aluminum tube rigid jumper[J].High Voltage Engineering,2010,36(1):205-211(in Chinese).
- [13]李显鑫,石改萍.单柱组合耐张塔跳线设计及计算[J].电力技术,2010,19(5):47-50.Li Xianxin,Shi Gaiping.Design and calculation of the jumper of single-pole-combined strain tower[J].Electric Power Technology,2010,19(5):47-50(in Chinese).
- [14]胡毅,刘凯,王力农,等.1 000 kV同塔双回输电线路带电作业技术试验研究[J].高电压技术,2010,36(11):2668-2673.Hu Yi,Liu Kai,Wang Linong,et al.Experimental research of live working on 1000kV double circuit ac transmission line on the same tower[J].Electric Power Technology,2010,36(11):2668-2673(in Chinese).
- [15]IEC61284—1997 Overhead lines-Requirements and tests for fittings[S].
- [16]GB/T 2317.2—2008电力金具试验方法第2部分:电晕和无线电干扰试验[S].
- [17]DL/T 1178—2012 1 000 kV交流输电线路金具电晕及无线电干扰试验方法[S].
- [18]GB 311.1—2012绝缘配合第1部分:定义、原则和规则[S].