DocumentCode :
1419633
Title :
Computation Model of the Reradiation Interference Protecting Distance Between Radio Station and UHV Power Lines
Author :
Bo, Tang ; Yuanfang, Wen ; Zhibin, Zhao ; Xiaowu, Zhang
Author_Institution :
Coll. of Electr. & Electron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Volume :
26
Issue :
2
fYear :
2011
fDate :
4/1/2011 12:00:00 AM
Firstpage :
1092
Lastpage :
1100
Abstract :
A three-dimensional computation model of UHVDC has been designed, which is used to offer higher accuracy in the assessment of reradiation interference protecting distance between radio station and UHV power lines. The model is excited by vertically polarized plane wave, and then the interference of requested point is calculated. Based on the wire and surface electric field integral equations of interference from power line, the equivalent principle and the reasons for increased deviation with increasing frequency of wire model are analyzed. In order to assure the continuity of induced current on steel tower and embody the structure of angle-steel effectively, three-dimensional surface model of UHVDC steel tower with and without auxiliary angle-steel based on triangular element are presented. With the RWG base function and Galerkin´s method, Method of Moments is applied to calculate the interference of surface model from steel tower, and the results are compared with that of wire model. The results show the values drawn from wire model and surface model have the same change trend, and the error gradually increases with the increase of frequency. If 0.1 dB is selected as the allowable deviation value, the surface model should be used instead of wire model when frequency is over 16.7 MHz.
Keywords :
HVDC power transmission; interference; method of moments; power cables; power transmission lines; radio stations; Galerkin method; Method of Moments; RWG base function; UHV power lines; UHVDC; electric field integral equations; induced current; radio station; reradiation interference protecting distance; steel tower; surface model; three-dimensional computation model; Computational modeling; Interference; Mathematical model; Poles and towers; Steel; Surface waves; Wire; Auxiliary angle-steel; UHVDC angle-steel tower; method of moments; reradiation interference; surface model; wire model;
fLanguage :
English
Journal_Title :
Power Delivery, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8977
Type :
jour
DOI :
10.1109/TPWRD.2010.2095043
Filename :
5680994
Link To Document :
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