基于红外成像的中低压电网电力稳定器高温运行 可靠性图像识别方法

电力稳定器在电网中起到稳定电压的作用, 一旦该设备出现异常, 电网运输电力质量会受到直接影响。面对这种情况, 研究一种基于红外成像技术的中低压电网电力稳定器高温运行可靠性图像识别技术。该研究中利用红外成像技术采集电力稳定器图像并实施预处理。分割电力稳定器红外图像, 划分目标区域和背景区域。提取目标区域 5个直方图-阶统计特征。以 5个直方图-阶统计特征为基础, 结合判别系数, 构建分类器, 实现电力稳定器状态识别。针对存在异常的电力稳定器, 计算图像目标区域处的相对温差, 确定可靠性等级。结果表明: 5个测试稳定器中只有 2个稳定器处在异常状态, 具体为稳定器 2中组成部分 3异常, 稳定器 5中组成部分 1异常。稳定器 2组成部分 3相对温差为 82.32%, 对应可靠等级为 2级, 可靠性低; 稳定器 5组成部分 1相对温差为 91.35%, 对应可靠等级为 3级, 可靠性非常低。对比实验结果表明, 所提方法识别准确率达到 92.3%以上, 优于对比方法, 具有更大的应用价值。

Abstract

area was calculated to determine the reliability level. The results show that only two of the five test stabilizers are in an abnormal state; specifically, component 3 of stabilizer 2 is abnormal, and component 1 of stabilizer 5 is abnormal. The relative temperature difference of component 3 of stabilizer 2 was 82.32%, and the corresponding reliability level was level 2, with low reliability; the relative temperature difference of component 1 of stabilizer 5 was 91.35%, the corresponding reliability level was level 3, and the reliability was extremely low. Comparative experimental results show that the recognition accuracy of the proposed method reaches 92.3% or higher, which is superior to that of the comparison method and has a greater application value.

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代子阔, 史可鉴, 宋仕达, 刘扬, 徐妍. 基于红外成像的中低压电网电力稳定器高温运行可靠性图像识别方法[J]. 红外技术, 2023, 45(12): 1351. DAI Zikuo, SHI Kejian, SONG Shida, LIU Yang, XU Yan. Reliability Image Recognition Method for High Temperature Operation of Power Stabilizer in Medium and Low Voltage Grids Based on Infrared Imaging[J]. Infrared Technology, 2023, 45(12): 1351.

基于红外成像的中低压电网电力稳定器高温运行可靠性图像识别方法

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