Electric-Methanol Hybrid Energy Storage Control Strategy for Smoothing the Fluctuation of New Energy Generation
2023 Power Electronics and Power System Conference (PEPSC)(2023)
摘要
In view of the power fluctuation and large peak-to-valley difference caused by the large-scale grid-connected wind and solar energy, this paper proposes the hybrid electric-methanol energy storage, which combines the electrochemical energy storage with the electrolytic CO2-to-methanol energy storage and not only improves the stability of the power system, but also reduces the CO2 emission in a large scale. Aiming at the insufficient purity of electrolytic CO2-to-methanol brought by voltage fluctuation, this paper puts forward a new electrolysis tank rotation strategy, and further gives the capacity configuration of the electric-methanol hybrid power station to make it comply with the national regulations. A new electrolyzer rotation strategy is proposed to address the problem of insufficient purity of electrolytic CO2 to methanol due to voltage fluctuation, and the capacity configuration of an electric-methanol hybrid power plant is further given with the goal of making the power fluctuation of the power plant comply with national regulations.
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关键词
Electricity-methanol hybrid energy storage,Electrolyzer rotation strategy,power fluctuations,Capacity configuration,CO2 reduction,Hybrid power station
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