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输电线舞动会对电力系统造成危害，目前主要通过检测间隔棒的摆动来判定舞动幅度。但对于没有间隔棒的输电线，尚无实用的检测方式。为此，提出了一种简便、有效、新颖的输电线舞动检测方法。首先，根据灰度随时间变化的统计信息进行背景建模。其次，提出随机灰度涨落场以描述由相机内外部因素引起的随机灰度涨落现象，并结合3σ准则消除对背景差分的影响，实现输电线区域的准确分割。最后，对输电线的运动进行映射得到累积灰度模型，并计算其短时间内在不同位置的运动幅度，通过与输电线自身线宽对比设置阈值判定舞动。利用杆塔摄像头采集的现场数据验证算法，达到了95.5%的检测准确率、5.7%的误报率和2.0%的漏报率，具有较强的鲁棒性和适用性。
Abstract：The galloping of transmission lines is a threat to the safty of the power system. Currently, the galloping amplitude was mainly determined by detecting the swing of spacers. However, there was no practical detection method for transmission lines without spacers. A simple, effective and novel method was proposed for detecting the galloping of transmission lines. Firstly, the background model was built by counting the data of grayscale changes over time. Then, a random grayscale fluctuation field was introduced to describe the random grayscale fluctuations caused by internal and external factors of the camera. The influence of these fluctuations on the background difference was eliminated by combining the 3σ criterion, thus achieving accurate segmentation of the transmission line area. Finally, the movement of the transmission line was mapped to generate a cumulative grayscale model, and its movement amplitude at different positions in a short time was calculated. By comparing with the line width of the transmission line itself, a threshold was set to determine the dancing. The algorithm was validated using field data collected by tower cameras, achieving a detection accuracy of 95.5%, a false positive rate of 5.7%, and a false negative rate of 2.0%. This method demonstrated strong robustness and applicability.
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基本信息:
DOI：10.13705/j.issn.1671-6841.2024104
中图分类号:TM75
引用信息:
[1]刘军,李小雨,刘华,等.基于累积灰度模型和随机灰度涨落场的无间隔棒输电线舞动检测[J].郑州大学学报(理学版),2025,57(06):74-82.DOI:10.13705/j.issn.1671-6841.2024104.
基金信息:
山东省重点研发计划项目(2017CXGC0810); 山东省教育科学“十三五”规划教育招生考试专项课题项目(BYZK201917)