消弧线圈新型自动调谐方式的研究
夏小飞
广西电力科学研究院,广西 南宁 530023
摘 要: 根据10 kV 配电网的实际情况,就随调式消弧线圈对配电网安全运行的影响进行系统的仿真计算,评估其优缺点,并提出了一种消弧线圈的新型调谐方式:随调式消弧线圈正常运行时预置40% 脱谐度。仿真结果表明,该新型调谐方式解决了目前系统广泛应用的随调式消弧线圈故障选线成功率低的问题,有利于配电网的安全可靠运行。
关键词: 消弧线圈;欠补偿;间歇性电弧接地;接地选线;评估优化
中图分类号:TM55 文献标识码:A 文章编号:1007-3175(2013)11-0015-05
Study on New Type of Automatic Tuning Method for Arc Suppressing Coil
XIA Xiao-fei
Guangxi Electric Power Research Institute, Nanning 530023, China
Abstract: According to actual situation of 10 kV distribution network, this paper carried out the system simulation calculation for the impact of post-set arc suppressing coil on safety operation of distribution network and evaluated its advantages and disadvantages.This paper raised a new type of tuning method of arc suppressing coil. 40% detuning degree was preset in normal operation of postset arc suppressing coil. Simulation result shows that the new type of tuning method has solved the low successful rate problem of existing system widely applied in post-set arc suppression coil fault line selection, which is favorable for safety and reliable operation of distribution network.
Key words: arc suppressing coil; under compensation; intermittent arc grounding; grounding line selection; evaluation and optimization
参考文献
[1] DL/T 620-1997 交流电气装置的过电压保护和绝缘配合[S].
[2] 韩爱芝,曾定文,鲁铁成. 配电网间歇性电弧接地过电压的仿真分析与对策[J]. 高压电器,2010,46(1):72-75.
[3] 陈恒.不同消弧线圈性能分析与试验验证[D].上海:上海交通大学,2010.
[4] 王鹏,顾萌.预调式和随调式消弧线圈与铁磁谐振分析[J].电工技术,2011(1):71-73.
[5] 陆国庆,张瑞红,刘味果,等.小扰动法与并联电阻法选线方式的比较分析[J].电力设备,2007,8(8):24-27.
[6] 陈国平.高阻接地系统的微机选线及故障定位装置研制[D].长沙:湖南大学,2010.
[7] 孙福生.谐振接地系统小电流接地故障选线技术评价体系及分析[D].济南:山东大学,2010.
[8] 连鸿波,谭伟璞,裴善鹏,等. 谐振接地电网预随调补偿方式及其实现[J]. 电力系统自动化,2005,29(21):83-88.
[9] 吴清,许云峰.小电流接地选线装置的现场接地选线试验[J].电力系统自动化,2006,30(17):105-107.