Permanent magnet synchronous motor fault-tolerant control method based on adaptive deadbeat current prediction

The invention discloses a permanent magnet synchronous motor fault-tolerant control method based on adaptive deadbeat current prediction, and relates to the field of motor control. A current sampling value is subjected to an adaptive deadbeat prediction method to obtain a control signal, and the control signal is subjected to coordinate transformation to obtain a permanent magnet synchronous motor control signal; the adaptive deadbeat current prediction method comprises the following steps: acquiring a steady-state error according to a current sampling value and a current given value; obtaining a voltage interference value e (k) at the moment k according to the resistance voltage drop, the back electromotive force and the voltage error term; predicting a k + 1 moment voltage interference value according to the steady-state error and the k moment voltage interference value; and predicting a current prediction value at the k + 1 moment through the voltage interference value at the k + 1 moment, and obtaining a