Large water electrolysis hydrogen production system with wide power fluctuation adaptability and control method

Abstract

The invention relates to a large water electrolysis hydrogen production system with wide power fluctuation adaptability and a control method. The system comprises: a plurality of water electrolysis hydrogen production module groups which are arranged in parallel; a system power division controller, which is configured to be used for power distribution and control of the water electrolysis hydrogenproduction module groups in the water electrolysis hydrogen production system; each water electrolysis hydrogen production module group comprises a plurality of water electrolysis hydrogen productionmodules with different power levels and a module power division controller, the module power division controller is configured to be used for power diversion control of a water electrolysis hydrogenproduction module in the module group. The module power division controller is connected to the system power division controller, and the water electrolysis hydrogen production modules in the water electrolysis hydrogen production module groups share one module manager used for temperature, alkali liquor circulation and gas-liquid separation control and a hydrogen purification assembly used for hydrogen purification. Compared with the prior art, the hydrogen production energy consumption efficiency and wide power fluctuation adaptability can be improved, the instantaneous response speed is increased, and the power loading cost is reduced.

Description

technical field [0001] The invention relates to a hydrogen production system by electrolysis of water, in particular to a large-scale hydrogen production system by electrolysis of water with wide power fluctuation adaptability and a control method. Background technique [0002] Against the complex background of deep adjustments in the world's energy structure, accelerated global action against climate change, and increasing constraints on resources and the environment, hydrogen energy has been considered as one of the major strategic directions for the world's energy and power transformation, and has attracted the attention of countries all over the world. The source of hydrogen is an important issue in the development of hydrogen energy at present. Hydrogen is still used as an industrial raw material gas and has abundant applications in the chemical industry. In terms of sources, there are mainly three mature technical routes; one is hydrogen production by reforming fossil e...

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Problems solved by technology

[0009] Although the existing research mentioned the use of multiple electrolytic water hydrogen production equipment in the same system, it did not consider the modular integration of a single electrolytic water device, lacking a w

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