Electrolytic hydrogen production system capable of realizing large-scale fluctuation energy consumption and operation method

Abstract

The invention relates to the field of renewable energy sources and hydrogen energy, and discloses an electrolytic hydrogen production system capable of achieving large-scale fluctuation energy consumption. The electrolytic hydrogen production system comprises a control system, stable hydrogen production equipment, fluctuation hydrogen production equipment and energy storage equipment; the stable hydrogen production equipment absorbs basic loads needing to be consumed, and the fluctuation hydrogen production equipment absorbs fluctuation loads needing to be consumed; and the energy storage equipment absorbs redundant load when the fluctuating power supply load exceeds the maximum absorption capacity of the stable hydrogen production equipment and the fluctuating hydrogen production equipment. The invention further discloses an operation method, low-cost stable hydrogen production equipment is mainly used, high-cost fluctuation hydrogen production equipment is low in capacity, and the total investment cost is the lowest on the premise that certain fluctuation energy consumption capacity is guaranteed; therefore, the stable hydrogen production equipment can work near the rated load for a long time, and the fluctuation hydrogen production equipment fully exerts flexible power modulation performance, so higher fluctuation energy absorption and faster time response are achieved, and the service life of the hydrogen production equipment is prolonged.

Description

technical field

[0001] The invention relates to the fields of renewable energy and hydrogen energy, in particular to an electrolytic hydrogen production system and an operating method capable of realizing large-scale fluctuation energy consumption. Background technique

[0002] With the increasing proportion of renewable energy such as wind power and photovoltaic in my country's energy supply, the impact of the volatility of renewable energy on the power grid has become an urgent problem to be solved. Using renewable energy to electrolyze water to produce green hydrogen and storing hydrogen is an effective means to realize large-scale renewable energy storage and relieve the pressure on the power grid.

[0003] So far, only alkaline electrolyzed water technology is the only electrolytic water hydrogen production technology that can realize large-scale renewable energy consumption in China. Alkaline electrolyzers often work under stable power in traditional application scena...

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