In permanent magnet synchronous motor (PMSM) traditional vector control system, PI regulator is used in the speed loop, but it\nhas some defects. An improved method of PMSM vector control is proposed in the paper.The active-disturbance rejection control\n(ADRC) speed regulator is designed with the input signals of given speed and real speed and the output of given stator current q\ncoordinate component. Then, in order to optimize ADRC controller, the least squares support vector machines (LSSVM) optimal\nregression model is derived and successfully embedded in the ADRC controller.ADRCobservation precision and dynamic response\nof the system are improved.The load disturbance effect on the system is reduced to a large extent.Thesystem anti-interference ability\nis further improved. Finally, the current sensor CSNE151-100 is selected to sample PMSMstator currents. The voltage sensor JLBV1\nis used to sample the stator voltage.The rotor speed of PMSMismeasured by mechanical speed sensor, the type of which is BENTLY\n330500. Experimental platform is constructed to verify the effectiveness of the proposed method.
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