OPTIMISED CONTROL STRATEGY FOR WIND POWER HYDROGEN GENERATION SYSTEM CONSIDERING HYDROGEN PRODUCTION EFFICIENCY

Li Hongxing; Yuan Yupeng; Tong Liang

doi:10.19912/j.0254-0096.tynxb.2024-1037

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (10) : 154-164. DOI: 10.19912/j.0254-0096.tynxb.2024-1037

OPTIMISED CONTROL STRATEGY FOR WIND POWER HYDROGEN GENERATION SYSTEM CONSIDERING HYDROGEN PRODUCTION EFFICIENCY

Li Hongxing^1~3, Yuan Yupeng^1,2,4, Tong Liang^1,2,4

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Abstract

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.

Key words

hydrogen production by water electrolysis / electrolyzer array / wind power / efficiency characteristics / power distribution / wind curtailment / optimal control

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Li Hongxing, Yuan Yupeng, Tong Liang. OPTIMISED CONTROL STRATEGY FOR WIND POWER HYDROGEN GENERATION SYSTEM CONSIDERING HYDROGEN PRODUCTION EFFICIENCY[J]. Acta Energiae Solaris Sinica. 2025, 46(10): 154-164 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1037

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