Research on Vibration Fatigue Analysis and Defect Diagnosis of High Voltage Shunt Reactor
During normal operation of high-voltage shunt reactor,the vibration of its housing causes the solid struc-ture to be subjected to alternating mechanical stress.The mechanical strength of structural materials is gradually re-duced under long-term stress,thus resulting in serious defects in the reactor.In this paper,combined with the multi-physics finite element simulation model and the reactor vibration experiment,the stress distribution of the three-di-mensional model of the reactor during operation and the parts prone to mechanical fatigue are obtained firstly.On this basis,the vibration characteristics of the housing wall under different mechanical states are compared by simu-lating the mechanical defects of the corresponding parts of a 500 kV iron core reactor and the Markov transfer field and convolutional neural network are used to identify different mechanical states.Each signal channel has achieved a high recognition accuracy,which provides a new method for the diagnosis of mechanical defects of reactor.
high voltage shunt reactormechanical stressvibration characteristicdefect diagnosis
万方数据
维普
