Abstract

Wind power generation has a great influence on climatic conditions, and the output power fluctuation and intermittency are obvious. In this paper, a method based on improved empirical mode decomposition (EMD) for hydrogen energy storage (HES) is proposed to suppress wind power fluctuation. The HES consists of water electrolyzer, hydrogen fuel cell, and hydrogen storage tank (EL+FC+HST). An improved EMD is designed as a power allocation control method to maintain the HES charge-discharge balance and reduce the scale of the system. The 168 hours output data of 200kW wind turbine is used for simulation, which verifies the feasibility and superiority of the design method.

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