Fault Analysis Of Generator Bearing In Wind Turbine Based On ANSYS

Environmental pollution problems and the gradual depletion of traditional energy has greatly promoted the development of clean energy,including wind turbine installed capacity has grown rapidly year by year,stand-alone capacity is increasing,of course,the rapid development of the problem at the same time gradually highlighted.Most of the wind turbines are in the field,and the hubs are very high.They often suffer from the effects of sudden changes in wind speed,dust,snow and ice,high temperature,low temperature and so on.Therefore,the wind turbine is scattered and the main components are high And the more cumbersome,which caused maintenance difficulties,high maintenance costs,maintenance time-consuming problem,so the need for scientific analysis of the unit,real-time monitoring,master the crew health status and operation,eliminate health risks,so early detection Early maintenance,reduce unit failure rate,reduce the crew operation and maintenance costs,improve the operational reliability of the unit.TheIn this paper,the first analysis of wind turbine structure,heat transfer problems and finite element theory.Taking the generator of the wind turbine as the research object,the friction,heat dissipation and boundary conditions are analyzed.The bearings are modeled by ANSYS software,and the grid is divided and the grid quality is analyzed.Then,the heat load under steady state operation and wind speed mutation is analyzed,and the bearing conditions are loaded and solved according to the boundary conditions.The temperature field cloud diagram,heat flux density cloud diagram and so on under two kinds of working conditions are obtained.Analytical solution.Some useful conclusions are drawn from the analysis of these results.Finally,the different types of faults are analyzed,the heat conditions at the time of failure,the heat load during the loading of the bearing,the thermodynamic quantities under the fault condition,and the longitudinal analysis of the results.On the wind turbine bearing on-line monitoring and optimization of a certain role.