Decoupling Control of Bearingless Synchronous Reluctance Motor Based on Support Vector Machines Inverse System Method

The principle of the bearingless synchronous reluctance motor (BSRM) is expatiated and the mathematics model is established. Then the least squares support vector machines (LS-SVM) system method is applied to decoupling control of the BSRM, which decouples the original system into 3 relatively independent SISO pseudo-linear subsystems. At the same time, the closed loop linear controllers are designed based on the linear system theory. The simulation system is constructed with Matlab/Simulink software. The simulation results show that this kind of control strategy can realize dynamic decoupling among electromagnetic torque and radial suspension forces of the BSRM, and the control system has excellent dynamic and static performance.