特高压换流站交流滤波器现场试验的分析与探讨  

Analysis and Discussion on the Field Testing of AC Filters in UHVDC Convert Station

作　　者：吴方劼[1] 马为民[1] 孙中明[1] 张凯[1] 

机构地区：[1]国家电网公司直流建设分公司,北京100052

出　　处：《高电压技术》2010年第1期167-172,共6页High Voltage Engineering

基　　金：国家电网公司科技项目(SGCC[2007]86)~~

摘　　要：为了提高特高压直流工程电气设备的试验测量精度,规范现场测量方法,结合向家坝-上海±800 kV特高压直流输电工程从特高压交流滤波器的设计原则、方法和性能要求入手进行研究;讨论了交流滤波器现场试验的原理和方法,通过不同接线方式条件下的滤波器现场试验结果的对比,分析了测量回路中产生的电感和杂散电容效应对测量结果的影响。试验表明,测量过程中的不规范接线会使测量结果产生很大偏差,提出了应将测量接线接于设备正下方以减小和抵消测量回路电感以及杂散电容的影响等合理化建议,该项工作为滤波器设备的设计、试验以及规范化提供了一定的技术支撑。In order to improve the testing measurement accuracy of electrical equipment of ultra high voltage direct current （UHVDC） transmission project, we analyzed the ultra high-voltage AC filter design principles, methods and performance requirements, introduced the AC filter field testing principles and methods, and tested AC filter in various mode of connections, which depended on Xiangjiaba Shanghai ± 800 kV UHVDC transmission project. The test results show that the connection mode has a great impact on the measurement results. Non--standard connection mode of testing winding would generate unexpected inductance and stray capacitance, Which will cause remarkable errors in measuring value. Accordingly, the rationalization proposals of measurement method are presented, for example, the testing line should be put right under the equipment so that the influence of winding inductance and stray capacitance can be reduced. The conclusion can provide a certain amount of technical support to filter equipment design, testing and standardization.

关 键 词：特高压直流 直流输电 谐波 交流滤波器 现场试验 规范化 

分 类 号：TM83[电气工程—高电压与绝缘技术]