交直流混合电场旋转式一体化测试仪的研制  

Development of an Integrative Rotary Test Instrument for AC/DC Hybrid Electric Field

作　　者：张洪钏[1] 袁海文[1] 陆家榆[2] 崔勇[1] 杨勇[2] 赵录兴[2] 赵永生[2] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京市海淀区100191 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2012年第12期182-188,共7页Power System Technology

基　　金：国家重点基础研究发展计划项目(973项目)(2011CB209402);国家自然科学基金项目(51037001);高等学校博士学科点专项科研基金资助项目(20111102110007)~~

摘　　要：研究了一种直流电场、交流电场和交直流混合电场一体化旋转式电场测量仪。首先导出了一体化旋转式电场测量仪的输出电流与直流电场强度、交流电场强度和交直流混合电场强度的关系。在此基础上采用窄带通滤波法设计了感应信号后续处理电路,分离出感应信号中的直流分量与交流分量,并对电场仪进行了标定与现场测试。该电场仪测量精度高,线性度好,可以同时测量同一地点的交流电场、直流电场和交直流混合电场,对于超/特高压交直流同走廊和同塔输电线路混合电场研究和电磁环境监测具有重要意义。An integrative rotary test instrumment for DC electric field, AC electric field and AC/DC hybrid electric field is developed. Firstly, the relations between the output current of the developed integrative rotary test instrumment and the DC electric field strength, the AC electric field strength and the AC/DC hybrid electric field strength are derived; on this basis, a subsequent processing circuit for the induced signal is designed by narrow band-pass filtering to separate the DC component from AC component in the induced signal. The developed electric field tester is calibrated and field performance tests of the developed electric field tester are performed. The developed electric field tester possesses following advantages of high measuremnt accuracy and high linearity, and can be used to measure the AC electric field, DC electric field and AC/DC hybrid electric field at the same site simultaneously, so it is available to the research on bybrid electric filed in the environment of EHV/UHV transmisssion lines using the same corridor and to the research on bybrid electric filed in the environment of multi-circuit EHV/UHV transmission lines on the same tower as well as for the monitoring of electromagnetic environment.

关 键 词：特高压 交直流同走廊 旋转式电场仪 交直流混 合电场 

分 类 号：TM726[电气工程—电力系统及自动化]