±800kV云广线换流站母线电晕特性试验研究  

Study on Busbar Corona Characteristic Test of ±800 kV Yunguang HVDC Converter Substation

作　　者：万保权[1] 张小武[1] 张广洲[1] 邬雄[1] 饶宏[2] 倪小林[2] 罗宾[2] 王琦[2] 李妮[1] 

机构地区：[1]国网电力科学研究院,武汉430074 [2]中国南方电网公司技术研究中心,广州510623

出　　处：《高电压技术》2008年第9期1788-1791,共4页High Voltage Engineering

基　　金：“十一五”国家科技支撑计划重大项目(2006BA02A12)~~

摘　　要：为实现±800kV直流换流站母线电晕特性影响换流站管母线的优化设计和经济运行,对不同对地高度的φ250和φ300管母线的起晕电压、无线电干扰、可听噪声和地面合成场强进行了实验室试验。试验表明,φ250、300管母线施加±800kV直流电压时,管母线在高度10m和12m时起晕电压>±1200kV;管母线下地面合成场强<30kV/m,可听噪声<55dB,无线电干扰<60dB。φ250和φ300管母线电晕特性均满足±800kV换流站控制指标的要求。考虑到±800kV云广直流输电工程换流站的海拔高度影响,建议送端站选择φ300管母,受端站选择φ250管母,且其对地高度≥12m。The corona characteristics of busbar in 800 kV HVDC converter substation affect the optimal design and economic operation of tubular busbar in converter substation. This paper lauches the tests in laboratory for corona starting voltage, radio interference, audio noise and ground total electric field strength of the tubular busbars with the diameter of 250 and 300 mm under different height to the ground. The tests indicate that when imposed by 800 kV DC voltage, the tubular busbars have the corona starting voltage above 1200 kV under the height of 10 m and 12 m, and beneath the busbars, ground total electric field strength is less than 30 kV/m, audio noise less than 55 dB, and radio interference less than 60 dB. T;ae corona characteristics of the tubular busbars satisfy the requirements of control indexes of 800 kV HVDC converter substation. In 800 kV Yunguang HVDC converter substation, it is suggested thath the tubular busbar with diameter of 300 mm should be chosen as sending terminal, and that with diame ter of 250 mm should be as receiving terminal.

关 键 词：±800 KV 换流站 管母线 电晕特性 试验 

分 类 号：TM835[电气工程—高电压与绝缘技术]