Predictive control method of active power filter

The invention discloses a predictive control method for an active power filter, which belongs to the field of active power filters, and comprises the following steps: S1, carrying out mathematical modeling according to a topological structure of an LCL type active power filter: S11, obtaining a loop equation according to a topological structure diagram of the LCL type active power filter; s12, discretizing the loop equation by using a forward Euler formula to obtain a discrete model; s2, designing a predictive current controller of the active power filter: S21, an FCS-MPC method is a finite set model predictive control method, the traditional finite set model predictive control method is improved, and a repetitive controller is introduced in a predictive link; and S22, the CCS-MPC method is a continuous set model prediction control method, a state space model of the active power filter is calculated according to a CCS-MPC principle, and an evaluation function is converted into a constrained quadratic programm