特高压同塔双回输电线路工频参数测试技术及应用  

Measuring Technology and Application of Frequency Parameter of UHV Double-circuit Transmission Line on the Same Tower

作　　者：阎黎冰 王少华 李特 吴尊东 YAN Libing;WANG Shaohua;LI Te;WU Zundong(School of Electrical and Automation Engineering of Nanjing Normal University,Nanjing 210023,China;State Grid Zhejiang Electric Power Research Institute,Hangzhou 310014,China;State Grid Jinhua Power Supply Company,Jinhua 321000,China)

机构地区：[1]南京师范大学南瑞电气与自动化学院,江苏南京210023 [2]国网浙江省电力有限公司电力科学研究院,浙江杭州310014 [3]国网金华供电公司,浙江金华321000

出　　处：《电工技术》2018年第15期143-146,共4页Electric Engineering

基　　金：国家电网公司科技项目(编号SGJLJSFW[2013]494);浙江省电力公司科技项目(编号5211011306XF)

摘　　要：介绍了1000kV皖电东送特高压同塔双回线路皖南-浙北段的邻近线路分布情况,分析了特高压线路工频参数测试的技术关键,提出了皖南-浙北段特高压线路工频参数测试方法。基于特高压线路工频参数理论计算值,编制了试验计算书,并给出了试验设备配置建议。试验结果表明,受干扰电压的影响,1000kV皖南-浙北段工频参数测试期间必须采取抗干扰措施;特高压线路工频参数测试可采用工频变相量法和异频法两种方法;在进行阻抗参数测试时宜采用并联电容补偿法。Distribution of transmission lines neighboring Wannan-Zhebei part of 1000 kV Anhui to East ultra high voltage （UHV） power transmission lines was surveyed. The key technology of frequency parameter measurement of UHV trans mission line was analyzed. The technical method of frequency parameter measurement of Wannan Zhebei UHV transmis sion line was proposed. Based on theoretical values of frequency parameters of UHV transmission line, the calculations for field tests was prepared, and the test equipment preparation was recommended. Results showed that, due to the influence of interfering voltage, during the period of frequency parameter measurement of 1000 kV Wannan-Zhebei UHV transmis sion line, it was necessary to take some anti interference measures. Power-frequency varying vector method and non-pow er frequency method could be used for the frequency parameter measurement of UHV transmission line. For the imped ance parameters measurement, it was appropriate to adopt parallel capacitance compensation method.

关 键 词：皖电东送 特高压 同塔双回 工频参数 测试技术 感应电压 

分 类 号：TM835[电气工程—高电压与绝缘技术]