Modularized alkaline water electrolysis hydrogen production scheduling switching method suitable for wide power fluctuation

The invention provides a modularized alkaline water electrolysis hydrogen production scheduling switching method suitable for wide power fluctuation. The method comprises the steps that a working characteristic curve of an electrolytic bath is obtained; performing real-time prediction on the wind and light power in a future time period; setting a flag bit for the electrolytic cell based on the working characteristic curve; and generating an electrolytic cell scheduling strategy based on the real-time predicted wind-solar power and the flag bit, and carrying out modular alkaline water electrolysis hydrogen production scheduling switching based on the electrolytic cell scheduling strategy. By the adoption of the scheduling switching strategy, on the premise that safe and stable operation of the electrolytic cell is guaranteed, the utilization rate of renewable energy sources can be further increased, the hydrogen yield and average power distribution are increased, and the service life of the electrolytic cell i