To address the issue of low efficiency in hydrogen production from large-scale fluctuating wind power
we proposed an optimized control strategy for an electrolyzer array in a wind-hydrogen system combined with grid power purchases. Firstly
we stuolied the hydrogen production efficiency curve of proton exchange membrane electrolyzer. Based on the efficiency characteristics
we proposed a segmented regulation strategy considering hydrogen production efficiency for the start-stop control and power distribution of the electrolyzer array. Secondly
aiming to minimize the total system cost
we constructed an intraday optimization scheduling model for the wind-hydrogen system based on the artificial bee colony algorithm
using actual data from Ningbo for computational analysis. The results show that the proposed strategy increases hydrogen production by an average of 5.93% per hour compared to simple start-stop control
reduces the average daily start-stop times from 18 to 2
and improves the electrolyzer utilization rate from 64.58% to 98.75%. Furthermore
when the electricity price decreases by 47.27% and the hydrogen price increases by 14.29%
hydrogen production and power purchase increase by 15.56% and 227.79%
respectively
but the total cost decreases by 5.91% and 12.78%
indicating that the hydrogen price has a greater impact on the system’s economic performance.
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