Water electrolysis hydrogen production control method and system and controller

A control method and technology of water electrolysis, applied in the field of water electrolysis, can solve the problems of low wind power generation, inability to operate a purification system, and low utilization rate of electric energy in weak power generation areas.

Pending Publication Date: 2021-04-30
阳光氢能科技有限公司
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Problems solved by technology

[0003] However, when the input power of the water electrolysis hydrogen production tank is lower than the preset threshold, the purity of the hydrogen produced will decrease. Because the oxygen concentration in the hydrogen is too high, after entering the purification system, the purification system will not work properly due to the high calorific value. It can be seen that , the water electrolysis hydrog

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  • Water electrolysis hydrogen production control method and system and controller
  • Water electrolysis hydrogen production control method and system and controller
  • Water electrolysis hydrogen production control method and system and controller

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] See figure 1 , shows a schematic structural diagram of a water electrolysis hydrogen production system provided in an embodiment of the present application, and the system mainly includes: an electrolytic cell 110 , a controller 120 , and a power supply 130 .

[0044] In one application scenario, the electric energy output by the rene...

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Abstract

The invention provides a water electrolysis hydrogen production control method and system and a controller. According to the scheme, the method comprises the steps: controlling the working state of an electrolytic cell according to the concentration of hydrogen generated by the electrolytic cell, and controlling the on-off state of at least one power switch when the concentration of hydrogen exceeds a target concentration range so as to adjust the number of electrolysis cells participating in hydrogen production in the electrolytic cell; equivalently, the power required by the electrolytic cell is adjusted so that the hydrogen concentration generated by the electrolytic cell is changed, and finally, the hydrogen production concentration of the electrolytic cell is stabilized within a target concentration range. According to the scheme, the working state of the electrolytic cell is dynamically adjusted according to the hydrogen production concentration of the electrolytic cell, electric energy generated by a renewable energy power generation system in a weak power generation area is fully utilized, and hydrogen yield and hydrogen purity are improved.

Description

technical field [0001] The invention belongs to the technical field of water electrolysis, and in particular relates to a control method, system and controller for hydrogen production by water electrolysis. Background technique [0002] In recent years, with the rapid development of solar energy, wind energy and other renewable energy power generation technologies and the rapid decline in the cost of electricity, the use of renewable energy power for water electrolysis hydrogen production has been widely used. [0003] However, when the input power of the water electrolysis hydrogen production tank is lower than the preset threshold, the purity of the hydrogen produced will decrease. Because the oxygen concentration in the hydrogen is too high, after entering the purification system, the purification system will not work properly due to the high calorific value. It can be seen that , the water electrolysis hydrogen production tank cannot work when the power is lower than the...

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Application Information

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IPC IPC(8): C25B15/02C25B1/04C25B9/70C25B15/023
CPCC25B1/04C25B15/02Y02E60/36Y02P20/133
Inventor 于德野郭健王建
Owner 阳光氢能科技有限公司
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