The quality of the stator winding coil directly affects the performance of the motor.A dual-camera online machine vision detection method to detect whether the coil leads and winding regions were qualified was designe...The quality of the stator winding coil directly affects the performance of the motor.A dual-camera online machine vision detection method to detect whether the coil leads and winding regions were qualified was designed.A vision detection platform was designed to capture individual winding images,and an image processing algorithm was used for image pre-processing,template matching and positioning of the coil lead area to set up a coordinate system.After eliminating image noise by Blob analysis,the improved Canny algorithm was used to detect the location of the coil lead paint stripped region,and the time was reduced by about half compared to the Canny algorithm.The coil winding region was trained with the ShuffleNet V2-YOLOv5s model for the dataset,and the detect file was converted to the Open Neural Network Exchange(ONNX)model for the detection of winding cross features with an average accuracy of 99.0%.The software interface of the detection system was designed to perform qualified discrimination tests on the workpieces,and the detection data were recorded and statistically analyzed.The results showed that the stator winding coil qualified discrimination accuracy reached 96.2%,and the average detection time of a single workpiece was about 300 ms,while YOLOv5s took less than 30 ms.展开更多
文章采用自动纵向焊接管制造技术,对1000 M W水氢氢汽轮发电机定子水冷线圈用焊接不锈钢矩形通水管进行了工艺开发。经验证,自动纵向焊接不锈钢矩形通水管宏观金相、硬度、拉伸性能及晶间腐蚀性能等各项性能指标均符合技术要求。此外,...文章采用自动纵向焊接管制造技术,对1000 M W水氢氢汽轮发电机定子水冷线圈用焊接不锈钢矩形通水管进行了工艺开发。经验证,自动纵向焊接不锈钢矩形通水管宏观金相、硬度、拉伸性能及晶间腐蚀性能等各项性能指标均符合技术要求。此外,通过试制1000 MW发电机用定子线圈,验证了通水管的弯形及焊接性能,该通水管密封性良好。验证结果表明,焊接不锈钢矩形通水管在定子线圈中的应用具有可行性。展开更多
基金National Natural Science Foundation of China(No.U1831123)。
文摘The quality of the stator winding coil directly affects the performance of the motor.A dual-camera online machine vision detection method to detect whether the coil leads and winding regions were qualified was designed.A vision detection platform was designed to capture individual winding images,and an image processing algorithm was used for image pre-processing,template matching and positioning of the coil lead area to set up a coordinate system.After eliminating image noise by Blob analysis,the improved Canny algorithm was used to detect the location of the coil lead paint stripped region,and the time was reduced by about half compared to the Canny algorithm.The coil winding region was trained with the ShuffleNet V2-YOLOv5s model for the dataset,and the detect file was converted to the Open Neural Network Exchange(ONNX)model for the detection of winding cross features with an average accuracy of 99.0%.The software interface of the detection system was designed to perform qualified discrimination tests on the workpieces,and the detection data were recorded and statistically analyzed.The results showed that the stator winding coil qualified discrimination accuracy reached 96.2%,and the average detection time of a single workpiece was about 300 ms,while YOLOv5s took less than 30 ms.
文摘文章采用自动纵向焊接管制造技术,对1000 M W水氢氢汽轮发电机定子水冷线圈用焊接不锈钢矩形通水管进行了工艺开发。经验证,自动纵向焊接不锈钢矩形通水管宏观金相、硬度、拉伸性能及晶间腐蚀性能等各项性能指标均符合技术要求。此外,通过试制1000 MW发电机用定子线圈,验证了通水管的弯形及焊接性能,该通水管密封性良好。验证结果表明,焊接不锈钢矩形通水管在定子线圈中的应用具有可行性。
