Optimal operation of electric–freshwater energy system considering load regulation strategy of individual hydrogen electrolyzer

• Published in: Journal of engineering (Stevenage, England) Vol. 2024; no. 1
• Main Authors: Wang, He, Zhou, Bowen, Li, Fabin, Ma, Xingming, Gao, Yujie, Yang, Hao
• Format: Journal Article
• Language: English
• Published: London John Wiley & Sons, Inc 01.01.2024; Wiley
• Subjects: Alternative energy sources; clean energy; Coastal waters; Control systems; Cost analysis; Demand analysis; Demand side management; Desalination; distributed generation; electrical and electronic engineering; Electrical loads; Electricity; Electricity distribution; Electrolytic cells; Energy consumption; Energy storage; Fresh water; Freshwater resources; Fuel cell vehicles; Hydrogen; Linear programming; Offshore; Offshore energy sources; Optimization; Power supply; power system operation; power system optimization; renewable energy; Renewable resources; Seawater; smart grid; Systems stability; Water demand; Water resources; Wind power; China
• ISSN: 2051-3305; 2051-3305
• DOI: 10.1049/tje2.12345

In view of the existing literature, only the optimization operation of hydrogen energy–wind/light new energy is considered, and the research problems such as comprehensive utilization of water resources and load control strategies are ignored. Based on the analysis of load characteristics of offshore wind power, this paper has established an optimal operation model of power‐fresh water energy system based on “wind‐hydrogen‐water‐electricity” interaction. Meanwhile, an electrolytic hydrogen individual load control strategy is proposed to match wind power fluctuations from the perspective of internal load regulation of electrolytic hydrogen system. From the economic characteristics, operation characteristics, accommodation situation and other simulation analysis, it can reduce the total operating cost by about 3.1%, improve the utilization rate of electrolytic cell capacity, and meet the water demand of coastal users. It shows that the individual control strategy and optimal operation model have advantages, which is of great significance for realizing low‐carbon, safe, and economical operation of power grid in the future. Aiming at the problem that the internal characteristics of an electrolytic hydrogen system are ignored in the traditional research of optimal power grid operation, a load regulation strategy of an individual hydrogen electrolyzer is proposed. An optimal operation model of an electric–freshwater energy system is established to validate the effectiveness of the optimal operation model of the electric‐freshwater energy system.