特高压高补偿度串补线路的潜供电流问题
[Abstract]:Adding series compensation to UHV lines can improve the transmission capacity of transmission channels, and at the same time, the low frequency oscillation of the potential power supply current in the single phase fault of the line is also caused, which makes it difficult to extinguish the submersible arc, which is disadvantageous to the single-phase reclosing of circuit breakers. Long distance UHV lines need to be equipped with series compensation with higher compensation degree, which makes the influence of series compensation on the line potential supply current and recovery voltage more worthy of attention. At present, the measures of line protection and by-pass are generally adopted to suppress the potential supply current of series compensation lines, but the effect of series compensation with high compensation degree needs to be analyzed. In addition, the high amplitude low frequency oscillating current flow through the line may lead to saturation, which makes the characteristics of the potential supply current and recovery voltage different from that of the high reactance as a linear element. The influence mechanism of series compensation on the potential supply current and recovery voltage of UHV lines is analyzed. Based on the typical system conditions, the effects of series compensation and high saturation resistance on the potential supply current and recovery voltage are simulated. The influence of the time difference of linkage bypass on the inhibition effect was analyzed. The results can be used as a reference for the engineering design and equipment selection of UHV long distance and high compensation series compensation lines.
【作者单位】: 新能源电力系统国家重点实验室(华北电力大学);中国电力科学研究院;
【基金】:国家电网公司科技项目(SGNX0000DKJS1500066)~~
【分类号】:TM75
【相似文献】
相关期刊论文 前10条
1 程霞;邵凤华;;500kV线路潜供电流计算[J];内蒙古石油化工;2008年07期
2 郭志红;孙为民;高波;姚金霞;朱振华;;500kV郓城—泰安紧凑型输电线路的潜供电流限制及单重时间配合[J];电网技术;2006年17期
3 陈剑萍;张思;丘文千;戴攀;陈光;王东举;周浩;;特高压线路潜供电流的仿真计算[J];电力自动化设备;2009年04期
4 尹忠东;周丽霞;肖湘宁;郑征;;不同线路模型下潜供电流的特性分析[J];电工电能新技术;2009年04期
5 栾鹏飞;李含善;;潜供电流影响因素的研究[J];三峡大学学报(自然科学版);2011年04期
6 李晓华;谢金泉;罗龙波;张波;李艳;;地区电网采用不换位架设方式的高压输电线路潜供电流分析[J];高电压技术;2013年06期
7 左宏;王喜全;;超高压电网潜供电流计算分析[J];中国电业(技术版);2013年08期
8 李元;;特高压电网潜供电流的探讨[J];中国新技术新产品;2013年20期
9 韩彦华,施围;用二次模方法计算潜供电流[J];高压电器;1999年04期
10 刘海军;韩民晓;文俊;;特高压双回线路潜供电流补偿方案仿真研究[J];电网与清洁能源;2009年12期
相关硕士学位论文 前6条
1 高波;同塔四回输电线路潜供电流补偿方案研究[D];华北电力大学(北京);2016年
2 杨芳;高压输电线路的潜供电流特性与对策研究[D];广西大学;2006年
3 池磊;500kV紧凑型线路潜供电流分析研究[D];重庆大学;2013年
4 王苗苗;特高压可控并联补偿线路的潜供电流抑制研究[D];华北电力大学(北京);2010年
5 梁昌深;长距离大容量混合海缆输电无功补偿及潜供电流的研究[D];华北电力大学(北京);2011年
6 高山;特高压输电线路潜供电流及其对重合闸的影响研究[D];华北电力大学(河北);2010年
,本文编号:2200575
本文链接:https://www.wllwen.com/kejilunwen/dianlidianqilunwen/2200575.html