绝缘子污秽的毫米波辐射测量建模与计算

Abstract
Figure/Table
References
Related Citation (3)

Download: PDF (438 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract According to the theory of antenna and microwave radiometry, the model of millimeter wave radiation measurement of insulator contamination is established in this paper. It includes the antenna temperature model and the three-layer medium model. The relationship between medium emission rate and some factors such as temperature, incident angle, thickness of the contamination and insulators-layer dielectric constant are analyzed. Under the clear sky and cloud weather conditions, sky temperatures are calculated firstly based on the atmospheric parameters. Furthermore, by using this detection model, the relationship between Antenna temperature and ESDD in different conditions is obtained. The calculation results show that, for the high accurate millimeter wave radiometer, the antenna temperature values can completely reflect the contaminated degree of insulator with certain atmospheric and model parameters. The experimental results demonstrate the effectiveness and accuracy of the detection model, and the above analysis provides the reference basis for engineering application.

Key words： Insulator contamination emission rate ESDD antenna temperature sky temperature

Received: 05 March 2008 Published: 14 February 2014

PACS:	TM855
	TM931

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Heming
	Lu Shan
	Gao Qiang
	Zhao Zhenbing

Cite this article:

Li Heming,Lu Shan,Gao Qiang等. Modeling and Calculating of Millimeter Wave Radiation Measurement for Insulator Contamination[J]. Transactions of China Electrotechnical Society, 2009, 24(6): 172-177.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I6/172

[1] 江秀臣, 安玲, 韩振东. 等值盐密现场测量方法的研究[J]. 中国电机工程学报, 2000, 20(4): 40-43.
[2] 关志成, 刘虹, 王黎明, 等. 用局部表面电导率法研究绝缘子的积污规律[J]. 清华大学学报, 2000, 40(1): 10-12.
[3] 李晓红, 王敏, 吴敏, 等. 支柱瓷绝缘子的超声检测有效性[J]. 中国电机工程学报, 2006, 26(9): 159-163.
[4] 土井博. 用激光图像多普勒振动计进行缺陷绝缘子的自动化检测[C]. 电气学会电力能量部门大会论文集, 1994, 5(2): 470-471.
[5] 王祖林, 黄涛, 刘艳, 等. 合成绝缘子故障的红外热像在线检测[J]. 电网技术, 2003, 27(2): 17-20.
[6] Vaillancourt G H, Bellerive J P, St Jean M, et al. New live line tester for porcelain suspension insulators on high-voltage power lines[J]. IEEE Transactions on Power Delivery, 1994, 9(1): 208-219.
[7] 任海鹏, 刘丁, 李琦, 等. 变电站绝缘子污秽闪络在线监测技术[J]. 电工技术学报, 2002, 17(3): 77-81.
[8] 金心明, 姚建林, 施海宁, 等. 用脉冲电流法判定线路绝缘子污秽程度[J]. 高电压技术, 2005, 31(11): 16-18.
[9] 高强, 马鹏飞, 李环媛. 绝缘子污秽的微波辐射特性研究[J]. 高电压技术, 2006, 32(7): 25-28.
[10] 张祖荫, 林士杰. 微波辐射测量技术及应用[M]. 北京: 电子工业出版社, 1995.
[11] 中国国家标准化管理委员会. GB/T 4585—2004 交流系统用高压绝缘子的人工污秽试验[S]. 北京: 中国标准出版社, 2004.
[12] Klein L, Swift C. An improved model for the dielectric constant of sea water at microwave[J]. IEEE Transactions on Frequencies, Antennas and Propa- gation, 1977, 25(1). 104-111.
[13] 陈向东, 张祖荫, 林士杰. 八毫米微波天空温度[J].华中工学院学报, 1985, 13(4): 105-110.
[14] 赵振维, 吴振森, 沈广德, 等. 一种计算云雾毫米波衰减的经验模式[J]. 电波科学学报, 2000, 15(3): 300-303.
[15] 时翔, 娄国伟, 李兴国, 等. 装甲目标毫米波辐射温度的建模与计算[J]. 红外与毫米波学报, 2007, 26(1): 43-46.