高压电器2026，Vol.62Issue(8)：74-82,9.DOI:10.13296/j.1001-1609.hva.2026.08.010
基于TDOA的变压器局放组合定位与监测天线优化布置方法研究
Research on Optimization Layout for TDOA-based Combined Localization and Monitoring Antenna of Partial Discharge in Transformer
摘要
Abstract
The accurate detection of partial discharge in transformers is crucial for the state assessment of power equipment and the safety of the power grid.Research on the propagation characteristics of partial discharge of ultra-high frequency(UHF)signals based on full-scale transformers remains relatively limited,and few scholars thor-oughly examine the UHF signal propagation behavior inside transformers.In this paper,the propagation and attenua-tion characteristics of partial discharge of the UHF electromagnetic waves is firstly studied and analyzed and,at the same time,a UHF-based partial discharge localization approach—specifically,a combined transformer partial dis-charge localization method utilizing the TDOA-based UHF technique,is proposed.These research efforts provide a theoretical basis for the optimal placement of monitoring antennas.Then,the Peano fractal antenna is studied and,at the same time,a new ultra-high frequency oil valve antenna is designed.After that,an optimized layout model for the ultra-high frequency monitoring antenna is set up by arranging multiple local discharge sources in the transform-er and multiple Peano fractal antennas as well as ultra-high frequency oil valve antennas at appropriate positions on the box.It is found through analysis that both amplitude and accumulative energy of the simulated and measured sig-nals exhibit a generally consistent trend,which demonstrates the effectiveness of the proposed modeling method and provides a model foundation and support for the subsequent optimization of UHF antenna placement.关键词
特高频/局放定位/Peano分形天线/特高频油阀式天线/优化布置Key words
ultra-high frequency/localization of partial discharge/Peano fractal antenna/ultra high frequency oil valve antenna/optimization layout引用本文复制引用
沙伟燕,何宁辉,张佩,张方博..基于TDOA的变压器局放组合定位与监测天线优化布置方法研究[J].高压电器,2026,62(8):74-82,9.基金项目
国网宁夏电力有限公司科技项目(5229DK200047). Project Supported by Science and Technology Project of State Grid Ningxia Electric Power Co.,Ltd.(5229DK200047). （5229DK200047）
