The influence of material on the performance of permanent magnet eddy current speed-control device

The performance of permanent magnet eddy current speed-control device is closely related to the material properties of each component. In view of different permanent magnets, a three-dimensional finite element transient model of 500kw permanent magnet eddy current speed-control device is established. The finite element method is used to calculate torque, loss and output power of the permanent magnet eddy current speed-control device with different grades of NdFeB. The effects of different permanent magnet materials on the performance and temperature of the permanent magnet eddy current speed-control device are compared and analyzed. The influence of the dispersibility of permanent magnet materials on the starting performance and the no-load performance are analyzed by using the analysis method of induction motor. The experimental results were verified to be effective. The conclusion is of great reference value to the research and application of permanent magnet eddy current speed-control device.