Renewable energy hydrogen production system and control method thereof

A technology of renewable energy and hydrogen production system, applied in the field of hydrogen production system, can solve the problems of intermittency, unpredictability, and loss of renewable energy power generation system, so as to improve the range of power utilization, improve engineering practicability, and reduce production cost. The effect of hydrogen costs

Pending Publication Date: 2021-06-11
阳光氢能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, the hydrogen production system needs to reach certain operating parameters to effectively produce hydrogen; on the other hand, the output electrical performance parameters of the renewable energy power generation Renewable energy power generation system suffers from severe loss in 365 days of the year

Method used

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  • Renewable energy hydrogen production system and control method thereof
  • Renewable energy hydrogen production system and control method thereof
  • Renewable energy hydrogen production system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] This embodiment provides a renewable energy hydrogen production system and its control method, such as figure 2 As shown, the renewable energy hydrogen production system includes: a renewable energy power generation system 1, a DC bus 2, a main hydrogen production system 3, a secondary hydrogen production system 4, an energy storage unit 5, a controller 6, and AC electrical equipment 7 and an electrical conversion device; wherein, the electrical conversion device includes a main electrical converter 8, a secondary electrical converter 9, a bidirectional electrical converter 10, and an electrical inverter 11, and the renewable energy power generation system 1 It is a photovoltaic array, the main hydrogen production system 3 includes a main hydrogen production alkaline electrolyzer, and the secondary hydrogen production system 4 includes a secondary hydrogen production alkaline electrolyzer;

[0071] The output end of the renewable energy power generation system 1 is con...

Embodiment 2

[0084] This embodiment provides a renewable energy hydrogen production system and its control method, such as Figure 4 As shown, except that the renewable energy power generation system 1 is replaced by a photovoltaic array with a wind power generator, and a DC-AC electrical converter 13 is set between the wind-generator and the DC bus 2, the DC-AC electrical converter The AC input terminal of 13 is connected to the output terminal of the wind energy generator, and the DC output terminal of the DC-AC electrical converter 13 is connected to the DC bus 2, and the other contents are exactly the same as those in Embodiment 1.

Embodiment 3

[0086] This embodiment provides a renewable energy hydrogen production system and its control method, such as Figure 5 As shown, the energy storage unit 5 is replaced by the grid 14, and the electrical inverter 11 is omitted, and the grid 14 is used to supply power to the AC power equipment 7 in the hydrogen production system. Other contents of the renewable energy hydrogen production system and Embodiment 1 It is exactly the same; for the control method of the above-mentioned renewable energy hydrogen production system, when the output electrical performance power meets the T1 working condition, rely on the grid 14 to maintain the output electrical performance power ≥ the operating power of the hot standby condition; when the output electrical performance power meets T2 or During the T6 working condition, the power generation that cannot be used for hydrogen production in the renewable energy power generation system 1 (photovoltaic array) is incorporated into the power grid 1...

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Abstract

The invention relates to a renewable energy hydrogen production system and a control method thereof. The renewable energy hydrogen production system comprises a renewable energy power generation system, a main hydrogen production system, an auxiliary hydrogen production system and a controller, the output end of the renewable energy power generation system is connected with the main hydrogen production system and the auxiliary hydrogen production system through an electrical conversion device, and the capacity of the main hydrogen production system is larger than or equal to that of the auxiliary hydrogen production system. The output electrical performance parameters of the renewable energy power generation system are monitored in real time through the controller, start-stop control over the main hydrogen production system and the auxiliary hydrogen production system is achieved, the power utilization range of renewable energy is widened, renewable energy power generation is used for hydrogen production to the maximum extent, the hydrogen production cost of the renewable energy is reduced, and engineering practicability is improved.

Description

technical field [0001] The invention relates to the technical field of hydrogen production systems, in particular to a renewable energy hydrogen production system and a control method thereof. Background technique [0002] In recent years, renewable energy represented by photovoltaic power generation and wind power has developed rapidly, and the installed capacity of photovoltaic power generation and wind power has further increased, resulting in further increase in power fluctuations. When the power of renewable energy fluctuates, conventional power generation equipment scheduling is required However, the installed capacity of conventional power generation equipment is difficult to cope with such huge power fluctuations, making it difficult for renewable energy to be absorbed. In addition, there are still the following challenges in connecting renewable energy to the power grid: 1) The power quality of renewable energy affects the security of the power grid; The renovation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J15/00C25B1/04C25B9/65C25B15/02H02J3/28H02J3/38
CPCH02J15/008C25B1/04C25B15/02H02J3/28H02J3/381H02J2300/24H02J2300/28H02J2300/40C25B9/70Y02E60/36C25B15/00Y02P20/133C25B15/023H02J9/06
Inventor 张新建
Owner 阳光氢能科技有限公司
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