Wind-power hydrogen-manufacturing energy storage hydrogen fuel composite cell and power generation method thereof

Abstract

The invention discloses a wind-power hydrogen-manufacturing energy storage hydrogen fuel composite cell and a power generation method thereof. The cell comprises four working modes according to the intensity of wind. During strong wind, the cell employs a wind-power hydrogen-manufacturing energy storage power generation mode, and the wind power within the rated power is used for the power generation of an external grid, and the remaining wind power is converted into hydrogen for storage. When the intensity of wind is smaller, the cell employs an all-system operation mode, supplies the wind power to the external grid, starts a fuel cell power generation system, and converts the hydrogen energy of the hydrogen storage system into electric energy. When the quality of wind power is poorer, the cell employs a wind-power hydrogen-manufacturing fuel power generation mode, and the wind power is just used for manufacturing hydrogen and the fuel cell power generation system supplies power to the outside at the same time. When wind needs to be abandoned according to the scheduling requirements, the cell employs an independent operation mode, and the fuel cell power generation system enables the stored hydrogen to be converted into high-quality electric energy and enables the high-quality electric energy to be fed to a grid. The cell can effectively iron out the defects of the intermittency and fluctuation of renewable energy power generation (wind power), improves the controllability of output power of an electric field, and improves the stability level of power generation.

Description

technical field [0001] The present invention relates to direct carbon fuel cell technology, in particular to a hydrogen fuel composite cell for hydrogen production and energy storage by wind power and a power generation method thereof. Background technique [0002] Energy is the backbone of the human economy and the necessary driving force for social activities. At present, the primary power required for social activities is mainly obtained through heat engines, and then converted into electrical energy. Since the heat engine is limited by the Carnot cycle, it is difficult to improve the efficiency, which causes problems such as energy waste and increased pollution emissions. Therefore, the development of efficient and clean electric energy acquisition methods is called the inevitable direction of energy development. [0003] The characteristics of renewable energy such as wind energy determine that wind power is a typical random and intermittent power source. However, wit...

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Problems solved by technology

Since the cost of the electrolyzer is relatively expensive, especially the PEM electrolyzer, the cost of hydrogen production is higher than that of other hydrogen production methods

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