Linear induction motor model predictive current control method and system based on discrete space vector

The invention discloses a linear induction motor model prediction current control method and system based on discrete space vectors, and belongs to the field of linear motor control, and the method comprises the steps: designing a voltage vector discrete method according to a two-level voltage vector plane structure, and generating 4n-1 virtual voltage vectors according to the number n of iteration division times; sampling a motor phase current and a position signal, and calculating a speed signal by using the position signal; an optimal voltage vector searching method is designed according to a current prediction model and a cost function, the number of online evaluation voltage vectors is reduced, and the calculation amount is reduced. And according to the optimal voltage vector, generating a bridge arm switching pulse signal of each phase, and realizing control of the linear induction motor. Accurate control over the linear induction motor can be achieved, current harmonics of the linear induction motor ar