Research On The Key Technologies Of Bearingless Permanent Magnet Synchronous Slice Motor

In this paper, the working principle and control strategy of bearingless permanent magnet synchronous slice motor are introduced. Control simulation upon this motor is done using Matlab/Simulink, through which control process of producing radial suspension forces are analyzed vividly. Based on the research on the key technologies of bearingless permanent magnet synchronous slice motor, the main research object—the vecotor control based on SVPWM(Space Vector Pulse Width Modulate) and sensorless control based on MRAS(Model Reference Adapt System) of common PMSM(permanent magnet synchronous motor) is educed. Then the theoretical analysis and simulation study of the tow methods mentioned above are done as well.The inverter is designed with intelligent power model-PS21564, and then, the results from the tests of the inverter indicate that this inverter can satisfy the hardware requirements of the control system opon permanent magnet synchronous motor. The DSP software program of motor control was compiled. At last, the experiment of the motor control is carried out, which proved the feasibility of the tow control strategy mentioned above. Experimental results show that the research in this paper obtains the anticipated aim, and which lay a good foundation for further study as well.