不同计算模型下输电导线载流量研究分析  

Research and analysis of current carrying capacity of transmission line using different calculation models

作　　者：赵新宇 贾振宏 张瑞永 姚成 彭庆军 王晓静[3] 周天春[4] ZHAO Xinyu;JIA Zhenhong;ZHANG ruiyong;YAO Cheng;PENG Qingjun;WANG Xiaojing;ZHOU Tianchun(CEEC Jiangsu Power Design Institute Co.,Ltd.,Nanjing 210000,China;Electric Power Research Institute of Yunnan Power Grid Corporation,Kunming 650106,China;State Key Laboratory of Power Transmission Equipment and System Security and New Technology,Chongqing University,Chongqing 400030,China;Electric Power Planning and Engineering Institute,Beijing 100120,China)

机构地区：[1]中国能源建设集团江苏省电力设计院有限公司,江苏南京210000 [2]云南电网有限责任公司电力科学研究院,云南昆明650106 [3]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030 [4]电力规划设计总院,北京100120

出　　处：《电气应用》2020年第7期50-56,共7页Electrotechnical Application

基　　金：国家重点研发计划“重大科学仪器设备开发”重点专项高重复频率高压脉冲源研制与产业化项目(2017YFF0104300);中国博士后科学基金资助(2014M552552XB);中国电机工程学会青年人才托举工程(JLB-2017-288)。

摘　　要：深入开展不同计算模型下输电导线载流量研究分析,对提高输电导线载流量计算准确度和输电线路导线的选型具有重要意义。为此,基于有限元模型、IEEE 738计算模型和CIGRE WG 22.12计算模型开展了输电导线载流量特性研究。通过研究发现:不同海拔、不同风速下三种模型计算结果基本一致;在温升过程中有限元模型计算结果与试验数据较为接近,在热稳定情况下三种计算方法偏差不大;风速对输电导线载流量影响较大;随着海拔的升高相同条件下的导线热稳定时的温度也随之升高。It is of great signifcance to study and analyze the current carrying capacity of transmission lines using different calculation models for improving the accuracy of current carrying capacity calculation of transmission lines and the selection of transmission line conductors.In this paper,the current carrying capacity of transmission lines are studied based on the fnite element model,IEEE 738 model and CIGRE WG 22.12 model.It is found that the calculation results of the three models are basically consistent under different altitudes and wind speeds.The calculation results of the fnite element model are matched by the experiment in the process of temperature rise.Under thermal equilibrium,deviation of the results obtained from the fnite element model,IEEE 738 model and CIGRE WG 22.12 model is small;the wind speed has a great infuence on the carrying capacity of transmission lines;temperature of conductor in rises with the increasing of altitude.

关 键 词：导线载流量 IEEE 738计算模型 CIGRE WG 22.12计算模型 有限元方法 

分 类 号：TM75[电气工程—电力系统及自动化]