Analysis and Research on Cooling Structure of High-power Asynchronous Wind Turbine
With the development of wind power technology and the continuous increase of single machine ca-pacity,cooling structure design,noise performance,cost,etc.have become key links in motor design.At present,there is relatively little research on the correlation between ventilation and cooling structures and noise of high-power asynchronous wind turbines both domestically and internationally.This article took an a-synchronous wind turbine as an example and used CFD simulation analysis method to simulate and analyze the fluid and temperature fields of different structure coolers,stator and rotor ventilation ducts.The research results indicate that the M-type heat exchanger has the effect of reducing the internal wind resistance of the motor and increasing the internal air volume.It has a certain cost advantage while meeting the temperature rise requirements of the winding.At the same time,the staggered ventilation channels of the generator stator and rotor can reduce the aerodynamic noise of the motor to a certain extent.Through the above analysis and sum-mary,it is hoped to provide some reference for the cooling structure design of asynchronous wind turbines.