Design of an omnidirectional PD UHF antenna for substation inspection robot considering installation circumstance

2018 Condition Monitoring and Diagnosis (CMD) Pub Date : 2018-09-01 DOI:10.1109/CMD.2018.8535801

Ke Wang, Xiaoming Mai, Jin Tan, Yue Hu, Hongyi Huang

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引用次数: 1

Abstract

The omnidirectional antenna mounted on the substation inspection robot is an important device for PD detection in substation. In addition to the requirements such as wide operating frequency band, directional pattern covering detecting area and large gain, this antenna must also consider the requirements of practical application circumstance. On the one hand, the fact that antenna is operated on a mobile robot gives the requirements about the size and weight of the antenna. On the other hand, type selecting and parameters adjusting of antenna must consider the effects on antenna performance caused by the metallic environment of installation position. This paper designed and optimized a dual polarized planar antenna with the inverted-cone structure based on the requirements of PD detecting omnidirectional antenna in substation. In the bottom half of the antenna, cross - orthogonal trapezoidal plates are used to build up the inverted-cone structure to achieve the “up-warp” in the antenna E-plane radiation pattern, and the size of the bottom of the antenna is reduced by using a bottom circular plate with the outward-dipping edge. It can receive the PD electromagnetic wave signal sensitively, which meets the design requirements of the installation circumstance on inspection robot and PD detection in the entire substation.

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考虑安装环境的变电站巡检机器人全向PD超高频天线设计

安装在变电站巡检机器人上的全向天线是变电站PD检测的重要装置。该天线除工作频带宽、方向图覆盖探测面积、增益大等要求外，还必须考虑实际应用环境的要求。一方面，天线在移动机器人上操作的事实对天线的尺寸和重量提出了要求。另一方面，天线的选型和参数调整必须考虑天线安装位置金属环境对天线性能的影响。本文根据变电站PD检测全向天线的要求，设计并优化了一种反锥结构的双极化平面天线。在天线的下半部分，采用正交梯形板构成倒锥结构，实现了天线e面辐射方向图的“上翘”，并采用边缘向外倾斜的底部圆形板减小了天线底部的尺寸。能够灵敏地接收PD电磁波信号，满足了巡检机器人安装环境和整个变电站PD检测的设计要求。

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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2018 Condition Monitoring and Diagnosis (CMD)

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