基于单端计算法的特高压交流工频参数精确计算  

Precise Measurement of UHV AC Power Frequency Parameter Based on Single-ended Method

作　　者：张娜娜 甘帆 李云阁 付周兴[1] 朱琳 邓军波[4] ZHANG Nana;GAN Fan;LI Yunge;FU Zhouxing;ZHU Lin;DENG Junbo(School of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an 710054, China;State Grid Shaanxi Electric Power Research Institute,Xi’an 710100, China;State Grid Shaanxi Xi’an Power Supply Company,Xi’an 710054, China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049, China)

机构地区：[1]西安科技大学电气与控制工程学院,陕西西安710054 [2]国网陕西省电力公司电力科学研究院,陕西西安710100 [3]国网陕西省电力公司西安供电公司,陕西西安710054 [4]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049

出　　处：《智慧电力》2019年第5期103-107,共5页Smart Power

基　　金：国家重点研发计划资助项目(2016YFB0900801)~~

摘　　要：输电线路工频参数是线路过电压计算的基本参数,获取特高压交流同塔双回线路的参数对于指导工程运行极为必要。基于长线方程,提出了一种利用线路单端的电压、电流测量值精确计算特高压输电线路工频参数的方法。以榆横1000kV特高压输电线路为实例,使用该方法计算获得该线路的工频参数,并与常规粗算计算结果进行比较,结果表明该单端法在长线路工频参数计算中更为准确。最后在电磁暂态仿真平台(ATP)中进行仿真验证,说明该方法结果精确,适用于特高压输电线路的工频参数计算。The power frequency parameter of transmission line is the basic parameter of the line overvoltage calculation,it is necessary to obtain the parameters of UHV AC double-circuit lines on the same tower to guide the operation of the project. Based on the long-line equation,a method for accurately calculating the power frequency parameters of UHV transmission lines is proposed by using single-ended voltage and current measurement of the line. Taking the 1 000 kV UHV transmission line as an example,the power frequency parameters of the line are calculated and compared with the conventional rough calculation. The results show that the single-ended method is more accurate for the calculation of long-line power frequency parameters. Finally, alternative transients program (ATP) electromagnetic transient simulation software is used for simulation verification,it is verified that the method is accurate and suitable for the calculation of power frequency parameters of UHV transmission lines.

关 键 词：特高压 输电线路 参数计算 单端法 分布参数 

分 类 号：TM751[电气工程—电力系统及自动化]