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Control method and device of fuel cell power generation system and fuel cell power generation system

A fuel cell and power generation system technology, applied in the control field of fuel cell power generation system and fuel cell power generation system, can solve problems such as inability to follow and cannot be used, and achieve the effect of improving user experience and applying more scenarios.

Pending Publication Date: 2022-03-18
山东国创燃料电池技术创新中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current fuel cell power generation system mostly adopts the grid-connected mode, so that the fuel cell outputs power at a constant power. This mode makes it unusable when the grid is out of power, and cannot follow the load demand power in real time, and when the load exceeds the fuel cell power generation system When the rated power is connected to the grid, the grid will supplement the remaining power

Method used

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  • Control method and device of fuel cell power generation system and fuel cell power generation system
  • Control method and device of fuel cell power generation system and fuel cell power generation system
  • Control method and device of fuel cell power generation system and fuel cell power generation system

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Embodiment 1

[0044] figure 1 It is a flow chart of a control method for a fuel cell power generation system provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation where the fuel cell power generation is carried out in real time and off-grid according to the monitored load demand power. The fuel cell power generation system The control method can be executed by the control device of the fuel cell power generation system, and the control device of the fuel cell power generation system can be implemented in the form of software and / or hardware. The control method of the fuel cell power generation system specifically includes the following steps:

[0045] S110. Detect the load required power at the load end in real time, and judge whether the load required power is zero.

[0046] Wherein, the load demand power can be obtained by real-time detection through the second power sensor electrically connected to the load end, and a switch can be arranged be...

Embodiment 2

[0071] figure 2 It is a flow chart of a control method for a fuel cell power generation system provided in Embodiment 2 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments.

[0072] Correspondingly, the method in this embodiment specifically includes:

[0073] S210, detecting that there is a power supply demand at the load end, and controlling the fuel cell power generation system to start up.

[0074] S220. Real-time detection of load demand power at the load end.

[0075] S230. Determine whether the load demand power is zero, if yes, perform step S250, and if not, perform step S240.

[0076] S240. If the load demanded power is zero, and the time length during which the load demanded power is zero reaches a preset time length threshold, control the fuel cell power generation system to shut down.

[0077] S250. Determine whether the load demand power is greater than zero and less than the set power of the first fuel cell. If yes...

Embodiment 3

[0128] image 3 It is a structural diagram of a control device for a fuel cell power generation system provided by Embodiment 3 of the present invention. This embodiment can be applied to the situation of real-time follow-up and off-grid fuel cell power generation according to the monitored load demand power.

[0129] Such as image 3 As shown, the control device of the fuel cell power generation system includes: a load demand power judgment module 310, a power generation operation determination mode module 320, and a power generation control module 330, wherein:

[0130] The load demand power judging module 310 is used to detect the load demand power at the load end in real time, and judge whether the load demand power is zero;

[0131] The power generation operation determination mode module 320 is used to determine whether the grid power supply is normal if the load demand power is not zero, and determine the power generation operation mode of the fuel cell power generatio...

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Abstract

The embodiment of the invention discloses a control method and device of a fuel cell power generation system and the fuel cell power generation system. The control method of the fuel cell power generation system comprises the following steps: detecting load demand power of a load end in real time, and judging whether the load demand power is zero or not; if the load demand power is not zero, whether power supply of a power grid is normal or not is judged, a power generation operation mode of the fuel cell power generation system is determined according to a result of judging whether the power supply of the power grid is normal or not, and the power generation operation mode comprises a grid-connected power generation operation mode and an off-grid power generation operation mode; when the power generation operation mode is the grid-connected power generation operation mode, the fuel cell output power is determined according to the load demand power and the obtained fuel cell rated power and energy storage system SOC value, and the load demand power is jointly provided by a fuel cell power generation system and a power grid. The fuel cell output power is controlled based on the real-time load demand power, the application scenes are multiple, and the user experience is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of fuel cell power generation, and in particular to a control method and device for a fuel cell power generation system and a fuel cell power generation system. Background technique [0002] Under the background of carbon peaking and carbon neutrality, many energy industries are facing the situation of energy transition. Due to the characteristics of zero pollution and zero emission, fuel cells play an increasingly prominent role. Today, fuel cell power generation systems are used in addition to transportation. the main usage scenarios. [0003] The current fuel cell power generation system mostly adopts the grid-connected mode, so that the fuel cell outputs power at a constant power. This mode makes it unusable when the grid is out of power, and cannot follow the load demand power in real time, and when the load exceeds the fuel cell power generation system When the rated power is...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/38H02J3/32H01M8/04858H01M8/04955
CPCH02J3/46H02J3/381H02J3/388H02J3/32H01M8/0494H01M8/04947H01M8/04955H02J2300/30Y02E60/50
Inventor 李伟李明阳杨锋赵小军王彦波
Owner 山东国创燃料电池技术创新中心有限公司
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