Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (7): 2096-2103.doi: 10.12305/j.issn.1001-506X.2022.07.04

• Electronic Technology • Previous Articles     Next Articles

Analysis of arc radiation characteristics of maglev train and its influence on localizer

Feng ZHU, Xiao YANG*, Qianqian JIANG, Yuxuan WANG   

  1. School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
  • Received:2021-09-24 Online:2022-06-22 Published:2022-06-28
  • Contact: Xiao YANG

Abstract:

The electromagnetic radiation of maglev train is tested at the section insulator where off-line arc occurs frequently to study the influence of off-line arc on localizer. Combined with the test data, the maglev train and track models are built in the electromagnetic field simulation software FEKO, and the electric field distribution characteristics of the off-line arc under the electromagnetic shielding of track and car body are analyzed. Then, in the frequency band of localizer, the amplitude frequency characteristics of the off-line arc are obtained by the least square linear regression method. On the basis of radio wave propagation theory and the requirements of GB 6364, the influence of the off-line arc on localizer is analyzed by taking two cases. The maglev line is parallel to the runway extension and the line crossed the runway vertically. The results show that the signal to noise ratio of the received signal can meet the minimum protection rate of 20 dB in the case of maglev line crossing the runway. The off-line arc may affect the localizer when the distance between the maglev line and the runway extension line is less than 86.4 m. The results can provide a theoretical basis for the electromagnetic compatibility design between maglev line and airport.

Key words: maglev train arc, localizer (LOC), radiation characteristics, electromagnetic compatibility

CLC Number: 

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