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| 气体绝缘开关设备中特快速瞬态过电压的全过程测量方法 | |
| 引用本文： | 岳功昌,刘卫东,陈维江,关永刚,李志兵,王浩.气体绝缘开关设备中特快速瞬态过电压的全过程测量方法[J].中国电机工程学报,2011,31(31). |
| 作者姓名： | 岳功昌 刘卫东 陈维江 关永刚 李志兵 王浩 |
| 作者单位： | 1. 电力系统及发电设备控制和仿真国家重点实验室（清华大学电机系）,北京市海淀区,100084 2. 国家电网公司,北京市西城区,100031 3. 中国电力科学研究院,北京市海淀区,100192 |
| 基金项目： | 国家重点基础研究发展计划项目(973项目)(2011CB209405); 国家电网公司科技项目(SGKJJSKF[2009]776)~~ |
| 摘 要： | 特快速瞬态过电压（very fast transient overvoltages,VFTO）是超/特高压气体绝缘开关设备（gas insulatedswitchgear,GIS）设计和运行中十分关心的问题,试验研究VFTO的特性是非常必要的。VFTO包含特快速瞬态分量、工频分量和准直流分量（空载母线残余电荷电压）,其中VFTO的瞬态分量在GIS中以电压波的形式传播,致使不同位置的VFTO波形具有显著差异。因此,试验研究VFTO的关键是对VFTO时间过程和空间分布的全过程测量。研究了VFTO测量方法,采用手孔式电容传感器与阻抗变换器相结合的方法实现了全过程测量,研制出测量频带为0.003 Hz~100 MHz和波形记录时间为200 ms的测量系统;采用多个测量系统,并基于隔离开关触头间隙击穿时的电磁波辐射信号,研制出了同步触发装置,实现了对GIS上不同位置的VFTO空间分布的测量。 |
| 关 键 词： | 特高压 气体绝缘开关设备 特快速瞬态过电压 电容传感器 阻抗匹配 阻抗变换 |
Measurement Methods of Very Fast Transient Overvoltage in Gas Insulated Switchgear With Complete Process |
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| YUE Gongchang,LIU Weidong,CHEN Weijiang,GUAN Yonggang,LI Zhibing,WANG Hao,Haidian District,Beijing ,China,.State Grid Corporation of China,Xicheng District,Beijing ,.China Electric Power Research Institute,Beijing ,China.Measurement Methods of Very Fast Transient Overvoltage in Gas Insulated Switchgear With Complete Process[J].Proceedings of the CSEE,2011,31(31). | |
| Authors: | YUE Gongchang LIU Weidong CHEN Weijiang GUAN Yonggang LI Zhibing WANG Hao Haidian District Beijing China State Grid Corporation of China Xicheng District Beijing China Electric Power Research Institute Beijing China |
| Affiliation: | YUE Gongchang1,LIU Weidong1,CHEN Weijiang2,GUAN Yonggang1,LI Zhibing3,WANG Hao3(1.State Key Lab of Control and Simulation of Power System and Generation Equipments(Department of Electrical Engineering,Tsinghua University),Haidian District,Beijing 100084,China,2.State Grid Corporation of China,Xicheng District,Beijing 100031,3.China Electric Power Research Institute,Beijing 100192,China) |
| Abstract: | In the design and operation of ultra high voltage(UHV) and extra high voltage(EHV) gas insulated switchgear(GIS),there is a big concern on the very fast transient overvoltages(VFTO).Experimental investigations are necessary for the full understanding of the VFTO in UHV and EHV GIS.Research was performed in this paper on VFTO measurement method.VFTO includes not only the very fast transient components,but also power frequency component and quasi-DC component(residual voltage in the floating busbar).Also,the ... |
| Keywords: | ultra high voltage(UHV) gas insulated switchgear(GIS) very fast transient overvoltages(VFTO) capacitive sensor impedance match impedance converting |
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