| The compressor uses the high speed rotating blade to work for the air to raise the pressure component,its operation is completely provided by the switch reluctance motor,therefore Society needs to develop the new type motor unceasingly,the switch reluctance motor is developed in the mid-1980 s new type motor,it combines with the modern power electronics technology,the control technology has the DC motor and the asynchronous motor superiority,today the world already has in the low speed,the medium high speed,the high speed aspect research involves little,based on this kind of application demand,the switch reluctance motor ultra-high speed development has become the hot research spot.This undoubtedly increases operation and control and the difficulty of making,so later magnetic bearing and ceramic bearing came into being,magnetic bearing has the advantages without contact,without lubrication,high precision and high speed.Ceramic bearing has the advantages of small temperature influence,small contact range and small friction force,so different materials and models can be selected according to the actual situation.This article introduces the research background and significance of switch reluctance motor(SRD motor),basic structure and principle,mathematical model and linear analysis,introduction of speed regulation system,magnetic circuit calculation,motor parameters and so on.The Matlab simulation and design of switch reluctance motor,output SRD system flux,current,power,torque and other simulation graphics,so as to analyze its performance.We already know that the support stiffness of the magnetic bearing is isotropic with the support of the motor rotor.Through the analysis and calculation of the existing prototype,the result is that when the high speed is applied to 60000,the conversion unit is 1000,the electric power is obtained.The simulation result of the machine is that it can reach 85000,the conversion unit is 1400 the magnetic force line distribution of magnetic bearing,the magnetic flux density vector distribution map and the equivalent node cloud map,as well as the magnetic force magnitude of rotor are obtained by using the Ansys. |