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Keywords

uncertainty; MPC; computational complexity; consistency control; wind-storage coordination

Abstract

To address the issue of frequency stability in power systems under large-scale wind power grid integration, a frequency regulation control method of wind-storage coordination considering the differences in wind turbine states is proposed. Initially, a power system model incorporating wind power is constructed, with model predictive control (MPC) as the primary controller to optimize the output of the wind turbines. Then, on this basis, considering the differences in wind turbine state, the state consistency control (SCC) method is introduced to address the problem of online computational complexity arising from uniform control of all wind turbines via MPC, thereby reducing the order of the prediction model. Finally, in response to the deviation between the actual output power of the wind farm and the total predicted output power based on the dominant wind turbine in MPC, energy storage is added for compensation, forming a control mode for wind-storage coordination. The simulation results indicate that the proposed strategy not only mitigates the impact of internal differences within wind power but also reduces the online computational complexity of the system, ensuring the frequency stability of the power system.

DOI

10.19781/j.issn.1673-9140.2026.01.015

First Page

151

Last Page

162

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