电力变压器振动检测装置设计及振动信号去噪方法研究

针对电力变压器在运送和装配过程中受外力作用使变压器绕组变形,运行过程中绕组变形积累到一定程度使电力变压器抗短路能力下降,但这种现象在早期不易被发现,成为潜在事故隐患问题.论文选用具有浮点运算、单指令周期执行复杂计算的高性能控制器,结合模拟型高灵敏度单轴加速度计,设计能够测试电力变压器箱体关键点处三轴振动信息电力变压器振...

High-resolution non-destructive testing system of tubing based on LPWAN and LAN hybrid communication mode

The winding deformation of power transformer is caused by external force in the process of transportation and assembly. The winding deformation accumulates to a certain extent in the process of operation, which reduces the anti-short-circuit capacity of power transformer. However, this phenomenon is not easy to be found in the early stage and becomes a potential accident, In this paper, a high-performance controller with floating-point operation and perform complex calculation in single instruction cycle is selected to combined with high-sensitivity single axis analog accelerometer is used to design a power transformer vibration detection device which can test the three-axis vibration information at the key point of the power transformer box. Furthermore, the paper further studies the de-noising method which can be used in the high-performance arm controller for the three-axis vibration information of the power transformer detected by the accelerometer, in order to improve the accuracy of the vibration detection results and provide the basis for the accurate analysis of the vibration generation mechanism of the transformer.