Research on the Influence of Various Attribute Factors on Passive Interference in UHV Transmission Lines Based on Orthogonal Test

Jiangong Zhang, Zheyuan Gan, Xiaoyan Zhou, Pengcheng Yu, Chaoqun Jiao and Xiumin Zhang
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Jiangong Zhang: State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute Wuhan Branch, Wuhan 430073, China
Zheyuan Gan: State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute Wuhan Branch, Wuhan 430073, China
Xiaoyan Zhou: School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
Pengcheng Yu: School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
Chaoqun Jiao: School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
Xiumin Zhang: School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China

Energies, 2022, vol. 15, issue 13, 1-17

Abstract: Considering the problem of passive interference caused by electromagnetic scattering effects of transmission lines to neighboring radio stations and other communication equipment, this paper refines the passive interference calculation model for UHV transmission lines. The solution calculation is carried out by the Method of Moments, and the law of passive interference effect of the tower structure, auxiliary angles, and ground roughness under different frequency incident waves, is summarized. By designing an orthogonal test, the degree of influence of the above attributing factors on passive interference results in the established joint model of three towers with two stall distances was explored by using Analysis of Variance. The results demonstrate that both auxiliary angles and rough ground show a pattern of enhanced electromagnetic scattering effect with increasing plane wave frequency in single-factor analysis. When multiple factors are combined, the rough ground has a significant effect on the results. This method effectively evaluates the passive interference influence factor while reducing the modeling and simulation engineering and provides a reference for the passive interference prediction in subsequent practical projects.

Keywords: transmission line passive interference; tower auxiliary angle-steel; rough ground; orthogonal test; multi-factor ANOVA (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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