DocumentCode :
63529
Title :
A novel lightning current monitoring system based on the differential-integral loop
Author :
Chenguo Yao ; Yi Long ; Hao Wu ; Yan Mi ; Qi Wang ; Yi Ma ; Yuan Shen ; Zhuo Yang
Author_Institution :
State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China
Volume :
20
Issue :
4
fYear :
2013
fDate :
Aug-13
Firstpage :
1247
Lastpage :
1255
Abstract :
Among the traditional lightning current monitoring systems, it is hard to ensure measuring lightning currents directly, expediently, accurately and safely at the same time. So aiming at solving the problem of measuring the lightning current on the overhead transmission lines, it is necessary to create a novel lightning current monitoring system based on the differential-integral loop which has been widely applied in the pulse power measurement technique to achieve non-contact measurement of the lightning current on the lines under the consideration of the field conditions of lines. In this paper, the method of acquiring the lightning current waveforms and the design of the novel monitoring system are introduced. In the laboratory, the results of the experiments by using the high impulse current generator to simulate the lightning currents show that: for the certain measured distance, through adjusting the sensor parameters and choosing reasonable electromagnetic shielding measures, the lightning current monitoring system can collect the data of the high impulse current accurately and completely, and the monitoring system has the advantages of safety, high EMC performance and accuracy. At last, the field photos of this lightning current monitoring system are shown, and the field data proves that it can effectively meet the requirements of the monitoring system and be very convenient to popularize widely.
Keywords :
distance measurement; electric current measurement; electromagnetic shielding; integral equations; lightning protection; power measurement; power overhead lines; waveform analysis; differential-integral loop; distance measurement; electromagnetic shielding; high EMC performance; high impulse current generator; lightning current measurement; lightning current monitoring system; lightning current waveforms; noncontact measurement; overhead transmission lines; pulse power measurement technique; sensor parameters; Current measurement; Lightning; Magnetic field measurement; Monitoring; Power transmission lines; Transmission line measurements; Voltage measurement; differential-integral loop; lightning current; monitoring system; transmission line;
fLanguage :
English
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
Publisher :
ieee
ISSN :
1070-9878
Type :
jour
DOI :
10.1109/TDEI.2013.6571441
Filename :
6571441
Link To Document :
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