Optimization Strategy of Multi-Resource Participation in Frequency Regulation of Power Grid with High Penetration Renewable Energy

The continuous integration of high permeability renewable energy into the grid leads to a reduction in system inertia, a decrease in primary frequency regulation ability, and poses frequency safety challenges during power disturbances. Taking incorporation of frequency security constraints into the system optimization strategy becomes imperative to address this issue. In response to the frequency regulation requirements of a new energy power grid, this paper introduces an optimization strategy that considers frequency security constraints and integrates control for wind power. Initially, the paper derives system frequency security constraints based on the swing equation. Then, the unit commitment model is established, and the proposed method is tested on an IEEE 10-machine 39-bus system. The results demonstrate the effectiveness of the proposed method in achieving frequency regulation for new energy power grids while ensuring the secure and economical operation of the power grid.