中国电力 ›› 2014, Vol. 47 ›› Issue (11): 64-69.DOI: 10.11930/j.issn.1004-9649.2014.11.64.5

• 电网 • 上一篇    下一篇

局部放电全站定位综合算法

刘怀东1, 吴贺1, 王曦冉1, 李青1, 王成飞2   

  1. 1. 天津大学 智能电网教育部重点实验室,天津 300072;
    2. 南平供电公司,福建 南平 353000
  • 收稿日期:2014-07-11 出版日期:2014-11-18 发布日期:2015-12-08
  • 作者简介:刘怀东(1963—),男,山东东明人,副教授,从事电力系统的安全与稳定、配电自动化和电力市场研究。E-mail: hdliu@126.com

Improved Algorithm on Wide Range Positioning for Partial Discharge in Substation

LIU Huai-dong1, WU He1, WANG Xi-ran1, LI Qing1, WANG Cheng-fei2   

  1. 1. Ministry of Education Key Laboratory of Smart Grid (Tianjin University), Tianjin 300072, China;
    2. Nanping Electric Power Bureau,Nanping 353000, China
  • Received:2014-07-11 Online:2014-11-18 Published:2015-12-08

摘要: 提出了一种适用于变电站大范围监测的局部放电定位算法。该算法基于接收信号指示强度(RSSI),结合传感器数据实际情况补充计算节点。与传统三边加权定位方式不同,引入不定量条定位中垂线与三边区域共同加权。该模型考虑现实情况下放电位置在高度轴上与传感器群不在一个平面的情况,通过中垂线的引入可以有效地抑制定位误差。实验结果表明,所提出的改进定位模型能有效地匹配现实放电监测硬件,定位误差小于传统三边加权定位,结果符合工程要求。

关键词: 变电站, 局部放电, 定位算法, 传感器, 加权定位, 监测, 模型, 定位误差

Abstract: This paper proposes an improved positioning algorithm of electrical partial discharge applied for substations. The algorithm is based on the received signal strength of indication(RSSI) and replenishes beacon nodes by considering practical condition of the sensors. Compared with traditional trilateral weighting positioning algorithm, the proposed algorithm can improve the positioning accuracy by calculating the weighting results of the indefinite quantitative positioning perpendicular bisector and trilateral districts. This model considers the reality that the height of electrical discharge spots differentiates from the height of the plane formed by beacon nodes (signal sensors). The experimental result indicates that the revised positioning model proposed in this paper can effectively fit the condition of monitoring hardware and has higher positioning accuracy than the traditional trilateral positioning.

Key words: substation, partial discharge, positioning algorithm, sensor, weighted positoning, monitoring, model, positioning error

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