Study on control of bearingless slice motor

Based on the principle of producing radial suspension forces, the relationship between radial suspension forces, currents is radial suspension windings and equivalent current of permanent magnet is analyzed and deduced. Bearingless slice motor utilizes the bearingless technology to realize radial suspension and suspensions of the other 3-axis by the reluctance force. A digital vector control system according to the demand of decoupling is designed by using TMS320lf2407A DSP. The hardware and software of the control system are developed in this paper. The experimental results have shown that the steady suspension of the rotor is realized.