GIS中局部放电检测的偶极子天线模型设计

2015 International Conference on Electrical Engineering and Informatics (ICEEI) Pub Date : 2015-08-01 DOI:10.1109/ICEEI.2015.7352493

K. Khotimah, U. Khayam, Suwarno, Y. Tai, M. Kozako, M. Hikita

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引用次数: 26

摘要

气体绝缘开关设备局部放电检测是评估其绝缘状况最有效的方法。超高频法(UHF-method)是目前常用的PD检测方法之一。超高频天线/传感器是超高频放电测量的重要组成部分。传感器应具有结构简单、体积小、带宽宽、回波损耗小等特点。在300mhz - 3ghz的带宽范围内研制了多种超高频天线，用于探测局部放电产生的超高频电磁波。偶极子天线是宽带天线的一种。本文研究了作为超高频传感器的偶极子天线的设计。研究了传感器的长度和宽度对其特性的影响。增加一个存根作为尝试实现更宽的带宽产生T天线也进行了讨论。对天线模型进行了三维时域有限差分(FDTD)仿真，并通过网络分析仪的测量结果进行了验证。仿真结果与实测结果吻合较好。利用所研制的偶极子传感器和T天线传感器，对GIS模型坦克的PD测量进行了研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design of dipole antenna model for partial discharge detection in GIS

Detecting Partial Discharge (PD) in Gas Insulated Switchgears (GIS) is the most effective method to assess the insulation condition. One of the popular method PD detection is Ultra-High-Frequency method (UHF-method). UHF antenna/sensors are the most important part of UHF method PD measurement. The sensor should be simple, small size, wideband, and small return loss. Many types of UHF antenna have been developed in bandwidth 300 MHz-3 GHz for detecting electromagnetic wave with ultra high frequency generated by partial discharge. Dipole antenna is one type of broadband antenna. This paper deals with design of dipole antenna as UHF sensor. An investigation on the effect of length and width of the sensor on the characteristics are carried out. Adding a stub as an attempt to achieve wider bandwidth resulting T antenna is also discussed. A three-dimension finite difference time domain (FDTD) simulation is applied to the antenna model and the results are confirmed by measurements with a network analyzer. The simulation and measurement results give a good agreement. Measurement of PD in GIS model tank is also examined using the developed dipole and T antenna sensors.

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2015 International Conference on Electrical Engineering and Informatics (ICEEI)

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