摘要
针对目前变压器绕组超声波成像方法检测效率低以及适用范围窄的问题,对超声波阵列技术在变压器绕组变形检测中的应用进行了研究,设计了一种基于多点阵列式三维成像的变压器绕组超声波检测系统。该系统通过多路超声波对绕组变形进行了带电检测,根据多点阵列式三维坐标生成算法快速地得到了绕组的三维状态图,并将健康绕组和变形绕组进行对比得到了变形的量化表示图;利用该系统对实际电力变压器的绕组变形情况进行了现场测试。研究结果表明:该系统能够在不影响变压器正常运行的情况下对高压侧绕组进行超声波检测,高效地生成绕组的三维图像,并显示出绕组变形量的具体数值,实现了对变压器绕组变形的量化表示,系统的检测效率高、直观性好、安全性突出。
Mining at the problems of low detection efficiency and limited detection scope of the eurrent transformer winding ultrasonic meth- od, the application of ultrasonic array technology in transformer winding deformation detection was studied. A transformer winding ultrasonic detection system based on multi-point array 3 D imaging was presented. The system was used to detect the winding by multiple ultrasonic waves. According to multi-point array 3 D coordinate generation alg ofithm, the 3 D state diagrams of the windings were obtained quickly. And the quantitative distortion diagrams were obtained by comparing the healthy windings with the deformed windings. Then the system was used to conduct on-site testing on the winding of an actual power transformer. The results indicate that this system can detect the high-voltage side windings without affecting the normal operation of the transformer, generate the 3D images of the windings efficiently and show the specific values of the winding deformation. This system can realize the quantitative representation of the transformer winding deformation and it is effi- cient, intuitive and sec ure.
作者
涂正宏
李磊
徐鹏程
刘彦文
王昕
TU Zheng-hong;LI Lei;XU Peng-cheng;LIU Yan-wen;WANG Xin(Center of Electrical ＆ Electronic Technology,Shanghai Jiao Tong University,Shanghai 200240,China;Siping Power Supply Company,Jilin Electric Power Company,State Grid Corporation of China,Siping 136000,China)
出处
《机电工程》
CAS
北大核心
2018年第6期613-617,共5页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(61673268)
国家自然科学基金重点项目(61533012)
关键词
变压器绕组
超声波检测
多点阵列
三维成像
量化表示
transformer winding
ultrasonic testing
multi-point array
3 D imaging
quantitative representation
