基于图谱特征演化机理的复合绝缘子老化程度定量评估方法研究

项目名称： 基于图谱特征演化机理的复合绝缘子老化程度定量评估方法研究

项目编号： No.51277167

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 电工技术

项目作者： 易辉

作者单位： 中国电力科学研究院

项目金额： 76万元

中文摘要： 随着使用年数的增加，复合绝缘子老化程度增加，致使近年来复合绝缘子发生闪络、损坏事故日趋增多，因此，有必要针对性地开展复合绝缘子老化检测技术的研究。目前复合绝缘子的检测方法不多，且普遍存在检测精度低、操作复杂、效率低、无法在线检测、劳动强度大等缺点；关于其老化程度，只有定性的描述方法，且需要拆卸下来在实验室进行评估。本项目将新型遥感技术应用于复合绝缘子检测，可改变当前无法在日常巡视中对复合绝缘子运行状态进行检测、及时判断其缺陷的现状。项目组已经开展了利用高光谱遥感技术检测复合绝缘子的相关理论研究，实验结果证明该方法是可行的。本项目将以前期进行的复合绝缘子检测实验为基础，深入研究复合绝缘子老化的图谱特征（包括图像特征和光谱特征），建立定量评估模型描述复合绝缘子的老化程度，给出老化程度的评判标准和方法，为进一步在线检测复合绝缘子奠定理论基础。

中文关键词： 复合绝缘子；图谱特征；演化机理；老化；定量评估

英文摘要： As the using year of composite insulator increased, the aging degree of composite insulator increases.Therefore,the number of composite insulator flashover and damage accident grows in recent years. There is a need to research targeted detection technology of composite insulators aging to protect the security of grid operations very important.Present detection of composite insulators is not more, existing low detection accuracy,complicated to operate,low efficiency,can not be online testing, labor-intensive and other shortcomings. There is only qualitative description to describe aging degree, and should be removed in the laboratory to be evaluated. A new remote sensing technology will be used in this project to detect composite insulators. It can change the current occasion that is lacking of method to detect the aging status of composite insulator in routine inspections. The project team has carried out theoretical research of using hyperspectral remote sensing technology to detect polymeric insulator. Experiment results show that the method is feasible. Based on the early detection of composite insulators experiments, this project will further research on the map and spectrum characteristics of composite insulators, to establish a quantitative assessment model describing the aging degree of composite insulat

英文关键词： polymeric insulator；map and spectrum characteristics；evolution mechanism；aging；quantitative evaluation