Energy storage peak regulation system and method based on solid oxide hydrogen production

Abstract

The invention discloses an energy storage peak regulation system based on solid oxide hydrogen production, when a unit is in a low ebb of electricity consumption, steam is extracted from main steam of the unit to serve as a raw material for solid oxide hydrogen production and enters a solid oxide fuel cell, and electricity is accessed from a generator to serve as high-temperature steam electrolysis electricity; after electrolysis, hydrogen generated by the cathode is stored in a hydrogen storage tank, and oxygen generated by the anode is stored in an oxygen storage tank. When the unit is in a power utilization peak, hydrogen and oxygen in the gas storage tank are combusted in the catalytic combustion chamber to generate high-temperature steam, the high-temperature steam is pressurized and then supplemented to an inlet of the medium-pressure cylinder, the power capacity of the medium-pressure cylinder and the low-pressure cylinder is increased, the power capacity is increased, and the frequency modulation response rate of a main engine is increased. Main steam is adopted as an electrolysis raw material, the temperature needed by reaction is directly provided, the system is simplified, and meanwhile local overtemperature in the furnace is effectively avoided; hydrogen is adopted as an energy storage medium to be clean and efficient.

Description

technical field [0001] The invention belongs to the field of thermal power generation, and in particular relates to a system and method for energy storage peak regulation based on solid oxide hydrogen production. Background technique [0002] At present, the power consumption structure has undergone great changes, and the peak-to-valley difference of the power grid is increasing; coupled with the rapid increase in the power generation of new energy sources such as wind power and photovoltaics, the demand for the peak-shaving capacity and operation flexibility of thermal power units is getting higher and higher. As a result, more and more high-parameter and large-capacity thermal power units shoulder the responsibility of power grid peak regulation. Wind power, photovoltaic and other power generation have problems such as strong fluctuation, large peak-to-valley difference, and uncontrollable power consumption. In some areas, serious wind and light abandonment has occurred. ...

AI Technical Summary

Problems solved by technology

Wind power, photovoltaic power generation and other power generation have problems such as strong volatility, large peak-to-valley differences, and uncontrollable power consumption. In some areas, serious wind and light abandonment phenomena have occurred.

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