Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 最新索引

220 kV同塔双回线路感应电压电流影响因素敏感性分析

来源:电工电气发布时间:2019-11-19 13:19 浏览次数:14
220 kV同塔双回线路感应电压电流影响因素敏感性分析
 
吴倩1,2,薄鑫1,2,吴杨勇3,王庭华1,2,李辰1
(1 国网江苏省电力有限公司经济技术研究院,江苏 南京 210008;
2 国网江苏电力设计咨询有限公司,江苏 南京 210008;
3 国网安徽省电力有限公司祁门县供电公司,安徽 黄山 245600)
 
    摘 要:由于电磁感应和静电耦合作用,同塔双回正常运行线路会在检修线路上产生感应电压、电流。基于EMTP/EMTPE电磁暂态仿真平台,对杆塔线路布置方式、线路长度、运行线路传输功率和工作电压等,开展同塔双回线路感应电压、电流的主要影响因素敏感性分析,提炼关键敏感因素及敏感程度。通过挖掘220 kV同塔双回线路感应电压、电流的基本规律,对220 kV出线接地开关选型提出指导性建议,提高选型效率与准确性,为220 kV输电线路的检修提供技术参考。
    关键词:同塔双回;感应电压;感应电流;接地开关;敏感性分析
    中图分类号:TM755     文献标识码:A     文章编号:1007-3175(2019)11-0011-06
 
Sensitivity Analysis on Influence Factors of Induced Voltage and Current of 220 kV
Double-Circuit Transmission Lines on the Same Tower
 
WU Qian1,2, BO Xin1,2, WU Yang-yong3, WANG Ting-hua1,2, LI Chen1
(1 Economic Research Institute of State Grid Jiangsu Electric Power Co., Ltd, Nanjing 210008, China;
2 State Grid Jiangsu Electric Power Design Consulting Institute Co., Ltd, Nanjing 210008, China;
3 Qimen County Electric Power Supply Company of State Grid Anhui Electric Power Co., Ltd, Huangshan 245600, China)
 
    Abstract: Due to the electromagnetic induction and electrostatic coupling effect, when outage occurs in one of the 220 kV double circuits on the same tower, induced current and voltage will be generated in another circuit. Based on EMTP/EMTPE electromagnetic transient simulation platform, this paper carried out sensitivity analysis for those main factors of double circuits on the same tower, including arrangement form of circuits on the tower, length of double circuits on the same tower, transmission power and voltage of the running line, which impacted on the induced current and voltage, and the key sensitive factors and sensitivity degree were extracted. By excavating the basic law of induced voltage and current of 220 kV double-circuit transmission lines on the same tower, this paper puts forward the valuable proposal guiding the selection of 220 kV line earthing switches to improve the efficiency and accuracy of selection of earthing switches, which provides technical reference for 220 kV transmission line maintenance.
    Key words: double circuits on the same tower; induced voltage; induced current; earthing switch; sensitivity analysis
 
参考文献
[1] 吴姜,樊飞,肖景良.220 kV双回线路同塔占比与感应电流和感应电压的关系研究[J]. 吉林电力,2017,45(1):13-16.
[2] 徐晓刚,毛先胤,王宇,等. 同塔双回输电线路导地线布置对架空地线感应电流的影响[J]. 南方电网技术,2013,7(4):60-66.
[3] 陶冶. 同塔双回线路感应电压电流仿真算法的比较[J]. 江苏电机工程,2015,34(5):59-61.
[4] 廖民传,黎景辉,彭向阳,等. 复杂输电网络感应电压与感应电流的计算方法[J]. 高电压技术,2016,42(10):3308-3314.
[5] 中国电器工业协会. 高压交流隔离开关和接地开关:GB 1985—2014[S]. 北京:中国标准出版社,2014:53-54.
[6] 中国电力企业联合会. 高压交流隔离开关和接地开关:DL/T 486—2010[S]. 北京:中国电力出版社,2010:44-45.
[7] 电力工业部电力规划设计总院. 电力系统设计手册[K]. 北京:中国电力出版社,1998.
[8] 班连庚, 王晓刚, 白宏坤, 等. 同塔架设的220 kV/500 kV输电线路感应电流与感应电压仿真分析[J]. 电网技术,2009,33(6):45-49.
[9] 谢金泉,李晓华,戴美胜,等.500 kV同塔双回输电线路感应电流和感应电压研究[J]. 华东电力,2013,41(3):0602-0606.
[10] 麻敏华,汪晶毅.500 kV/220 kV混压同塔四回路感应电压、感应电流的研究[J]. 广东电力,2012,25(4):30-35.
[11] 张晓,贾振宏,吴锁平,等.500/220 kV混压同塔四回线路电磁环境的仿真分析[J]. 电网技术,2010,34(5):207-211.
[12] 龙雄峰. 变电站500 kV同塔双回输电线路感应电压研究[D]. 广州:华南理工大学,2018.
[13] 吴姜,樊飞,肖景良.500 kV同塔双回线路感应电流及感应电压规律研究[J]. 电力勘测设计,2017(2):56-61.
[14] 罗日成,李志前,李稳,等. 同塔四回混压输电线路感应电压与电流分析[J]. 电力科学与技术学报,2015,30(1):52-59.