Abstract:In response to the difficulty in absorbing the large-scale wind power generation connected to the grid, a hydrogen storage system composed of alkaline electrolyzers, hydrogen tanks, and oxyhydrogen fuel cells was built to convert the abandoned wind into hydrogen which can be used to meet the external hydrogen load demand or converted into electricity to supplement the grid during peak load periods. Firstly, the models of the uncertainty of wind power output and hydrogen energy storage system were established. In order to reduce the conservative degree of the traditional robust optimization solution, the robust optimization box set considering the adjustable conservative degree was used to describe the wind power output. On this basis, with the goal of reducing wind curtailment and improving the overall economy of the system, an economic dispatch model of a large-scale wind power power system based on hydrogen storage was established. The calculation example shows that the optimal scheduling model established in the article takes into account the robustness and economy of the solution, and can significantly reduce the abandonment of wind and reduce the total cost of the system.