基于机载激光LiDAR的电网巡检应用研究

Research and Application of Power Grid Inspection Based on Airborne LiDAR System

[目的]对于架空输电线路的巡检运维,利用机载激光LiDAR技术比传统巡检方式完成更高效率、高精度、低成本。[方法]以肇庆供电局架空输电线路巡检运维为项目背景,以直升机机载激光LiDAR技术在电网巡检工程中的应用为研究对象,研究并提出本次数据获取和数据处理所用的关键技术,探讨了机载LiDAR系统在电力巡检中的数据应用模式,并结合实践经验进行归纳总结与展望。[结果]成功验证了机载LiDAR系统在电力巡检中的应用,精确获取电网通道中的危险点信息,包括瞬时工况下的危险点、多工况下的危险点、交叉跨越危险点以及树木倒伏危险点空间信息。[结论]其分析结果可以辅助危险点治理等工作,有效地达到电网安全巡检预期目标。

[Introduction]With regard to the inspection and operations of the transmission overhead line,taking advantage of airborne LiDAR can attain higher efficiency,higher accuracy,and lower cost than utilizing traditional inspection mode. [Method]This paper was in the project setting of the Zhaoqing Power Supply Bureau transmission overhead line inspection and operations,moreover,taking the airborne LiDAR technology as the study object. Key techniques of data collection and data processing were analyzed and presented in the research. Data application mode of airborne LiDAR system in power line inspection was discussed. Also,combined with the practical experience,summary and propects were illustrated. [Result]This paper successfully verifies the application of airborne LiDAR system in power grid inspection,and accurately obtains information of defect points in the power grid corridor,including spatial information of defect points of scanning working condition,different working conditions,cross-over,and falling tree. [Conclusion]The analysis results can assist defect point management to effectively achieve expectations of power grid safety inspection.