电瓷避雷器Issue(6)：209-218,10.DOI:10.16188/j.isa.1003-8337.2023.06.025
电力设备外绝缘放电声-光协同检测及诊断技术
Acoustic-Optical Collaborative Detection and Diagnosis Technology for External Insulation Discharge of Power Equipment
摘要
Abstract
Based on the respective advantages of acoustic imaging technology and solar-blind ultraviolet imaging technology,an acousto-optic collaborative visual diagnosis method for the external insulation state of power equipment is proposed.First,based on multiple signal classification algorithm and single helical sensing array,a visualization method of corona discharge with high focusing accuracy is proposed and developed.At the same time,a solar-blind ultraviolet imaging bypass is introduced in the effective field of view(FOV)of acoustic imaging.Considering the influence of environmental noise on the detec-tion effect,a variable-weight acousto-optic collaborative visualization information fusion method is pro-posed.Through the spatial information spectrum fusion of acoustic intensity lattice,ultraviolet intensity lattice and visible pixel FOV,ultrasound-ultraviolet visualization diagnosis is realized.On the basis of the above research,the author conducts research on the optimization of the positioning algorithm,the reg-istration of the FOV and the evaluation of the positioning error.The test shows that the relative positioning error of proposed acousto-optic collaborative visualization diagnosis is less than 1%.The diagnosis method has a good effect on discharge detection with obstructed FOV,and improves the detection ability of acoustic imaging or ultraviolet imaging.关键词
户外绝缘诊断/电晕放电/超声定位可视化/折射光路紫外成像/图像信息融合/图像匹配Key words
outdoor insulation diagnosis/corona discharge/ultrasonic positioning visualization/refracted light path ultraviolet imaging/image information fusion/image matching引用本文复制引用
杨代勇,刘赫,林海丹,于群英,列剑平,李易..电力设备外绝缘放电声-光协同检测及诊断技术[J].电瓷避雷器,2023,(6):209-218,10.基金项目
国网吉林省电力有限公司科技项目(编号:2021-48).Project supported by Science and Technology Projec of Jilin Power Grid Co.,Ltd.(No.2021-48). （编号:2021-48）
