Permanent magnet synchronous motor control method

The invention discloses a permanent magnet synchronous motor control method, and belongs to the technical field of motor control, and the method comprises the steps: building a rotating speed error equation of a motor based on a mechanical motion equation of a permanent magnet synchronous motor; obtaining a full-order fast exponential sliding mode surface based on an exponential function and a hyperbolic function according to the rotating speed error equation; controlling the full-order fast index sliding mode surface by adopting a switching control law based on a sigmoid function, and constructing a full-order fast index sliding mode controller; constructing a self-adaptive terminal disturbance observer based on sliding mode control according to the rotating speed error equation; the full-order fast exponential sliding mode controller and the self-adaptive terminal disturbance observer based on sliding mode control are combined to control the permanent magnet synchronous motor, and compared with traditional