基于就地数据采集模型的架空输电线路动态增容方法  

Dynamic capacity increase method of overhead transmission lines based on local data acquisition model

作　　者：王喜全 潘臻 苏军虎 WANG Xi-quan;PAN Zhen;SU Jun-hu(State Grid Gansu Integrated Energy Service Co.,Ltd.,Lanzhou 730070,China)

机构地区：[1]国网甘肃综合能源服务有限公司,兰州730070

出　　处：《信息技术》2023年第8期142-147,共6页Information Technology

摘　　要：为有效提升电路传输容量,增强供电可靠性,降低温度与风速对架空输电线路载流量的影响,提出基于就地数据采集模型的架空输电线路动态增容方法。构建就地数据采集模型,依据选取的就地监测范围,按时测定杆塔周围温度、电压、电流以及弧垂数据等多种信息;计算弧垂变化量,得到弧垂的实时变化情况,衡量输电线路的传输功率是否超出线路传输极限,实现架空输电线路的动态增容。实验结果表明:所设计方法就地采集数据误差较低,增容后不同风速下具有较高载流量,增容效果好,且导线载流量未随着温度大幅下降。In order to effectively improve the transmission capacity of the circuit and enhance the reliability of power supply,and reduce the impact of temperature and wind speed on the ampacity of overhead transmission line,a dynamic capacity increase method of overhead transmission line based on local data acquisition model is proposed.The local data acquisition model is constructed,and various information such as temperature,voltage,current and sag data around the tower are measured on time according to the selected local monitoring range.Then,the variation of sag is calculated to get the real-time variation of sag,measure whether the transmission power of transmission line exceeds the transmission limit,and realize the dynamic capacity increase of overhead transmission line.The experiment results show that the designed method has low local data acquisition error,high ampacity at different wind speeds after capacity increase,good capacity increase effect,and the conductor ampacity does not decrease significantly with the temperature.

关 键 词：数据采集模型 架空输电线路 动态增容 弧垂计算 传输容量 

分 类 号：TM73[电气工程—电力系统及自动化]