With the integration of large-scale wind power into AC/DC interconnected power grid

the traditional automatic generation control(AGC)strategies are difficult to effectively suppress the frequency stability caused by the fluctuation of wind power. Therefore

a new AGC strategy based on two-level hierarchical model predictive control is proposed. The two-level hierarchical control scheme adopts decentralized model predictive controllers for multiple regional power grids in the lower layer

and the centralized controller in the upper layer adopts dynamic coordination mechanism for the decentralized controllers. Taking the AGC model of two-area AC/DC interconnected power grid with multi-source power generation as an example

the simulation results show that

compared with the centralized model predictive control method and decentralized model predictive control method

the proposed control strategy has not only good control effect on the system frequency and tie-lines power

but also high reliability.