Protecting Distance of Scattering between DC Transmission Line and Receiving Station of AM-Reference-Cited by-同舟云学术

Protecting Distance of Scattering between DC Transmission Line and Receiving Station of AM

Published:2014-12 Issue: Volume:716-717 Page:1123-1129
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Liu Xing Fa¹,Zhang Jian Gong¹,Gan Zhe Yuan¹,Tang Bo²

Affiliation:

1. China Electric Power Research Institute

2. China Three Gorges University

Abstract

In the construction of UHVDC power line in China, the national standard of reradiation interference protecting distance between UHVDC power line and receiving station of AM broadcasting needs to be renewed. In this paper, the wire-surface simulation model is used to calculate the interference. In the model, steel tower is represented as surface model, ground wire is represented as wire model, and the whole model is excitated by vertical polarization plane wave. For the deficiency of traditional solution method of protecting distance calculation, a new method is proposed. It is recommended that the whole work frequency band of receiving station should be calculated to determine the space interval which has actual protecting distance. Then the interval is gradually narrowed with dichotomy method until the interval size is within allowable value. With the first-grade receiving station of AM broadcasting as example, the reradiation interference protecting distance from UHVDC power line and station is calculated..

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.716-717.1123.pdf

Reference12 articles.

1. Liu Zhenya, Ultra-High voltage grid, Beijing, China Economy Press, (2006).

2. Wu Xiong, Wan Baoquan, Zhang Xiaowu, and Zhang Guangzhou Reradation interference and protection on radio station from 1000kV double-circuit power transmission line, Chinese State Grid, Wuhan, Tech. Rep. SGKJ.

3. 940, (2008).

4. International Special Committee on Radio Interference. Radio interference characteristics of overhead power lines and high-voltage equipment, PartⅠ: Description of Phenomena,. CISPR Publication 18-1, America, (1982).

5. State Administration of Radio Film and Television., and State Administration of Hydraulic and Electric．GB 7495-87 The protecting distance between overhead power line and receiving station of AM broadcasting, Beijing: Standard Press of China, (1987).