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A fuel cell backup power system based on supercapacitor startup

A super capacitor and fuel cell technology, applied in emergency power supply arrangement, electrical components, circuit devices, etc., can solve the problems of low cost, environmental adaptability and safety not as good as batteries, etc. Good fit

Active Publication Date: 2017-01-18
KUSN FUERSAI ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its cycle life has a big advantage over batteries, and the cost of later maintenance is lower, but it is limited to the characteristics of lithium-ion batteries, and its environmental adaptability and safety are not as good as batteries. For some extreme environments, it needs special protection. design

Method used

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  • A fuel cell backup power system based on supercapacitor startup

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Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0019] refer to figure 1 , the present invention includes a stack module 1, a DCDC converter 2, an auxiliary energy storage module that is a supercapacitor 3, a fuel cell control / auxiliary system module 4, a mains rectification module 5, and a load module 6. The stack module 1 outputs DCDC converter 2 and supercapacitor 3 are connected in parallel, switch K3 is set between stack module 1 and DCDC converter 2, switch K2 is respectively set between stack module 1 and supercapacitor 3, stack module 1 converts hydrogen and oxygen Provides power for electrical energy. The DCDC converter 2 is respectively connected in parallel with the fuel cell control / auxiliary system module 4 , the mains rectification module 5 and the load module 6 , and the DCDC co...

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Abstract

The invention relates to the technical field of fuel cells, in particular to a fuel cell standby power source system based on super capacitor starting. The fuel cell standby power source system comprises an electric piling module, a DCDC converter, an auxiliary energy storage module, a fuel cell control / assisting system module, a mains supply rectification module and a load module. The auxiliary energy storage module is a super capacitor, the output end of the electric piling module is in parallel connection with the DCDC converter and the super capacitor, and switches are arranged between the electric piling module and the DCDC converter and between the electric piling module and the super capacitor respectively. The output end of the super capacitor is connected to the ground. The DCDC converter is connected with the fuel cell control / assisting system module, the mains supply rectification module and the load module respectively in parallel. A lead wire is arranged between the input end of the super capacitor and the input end of the fuel cell control / assisting system module for connecting, and the lead wire is provided with a switch. The fuel cell standby power source system based on super capacitor starting is small in size, low in cost, long in cycle life, high in safety, and capable of well meeting the application demand of the fuel cell standby power source system.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a fuel cell backup power system started based on a supercapacitor. Background technique [0002] The start-up characteristics of the fuel cell material battery backup power system determine that it must be equipped with an auxiliary energy storage unit, which supplies power for the auxiliary systems of the fuel cell system (including the control system, cooling system, and fuel supply system) at the initial stage of start-up, and at the same time bears the load powered by. Generally speaking, it takes about 30 seconds for the fuel cell to reach the operating point from start-up. At this stage, the auxiliary energy storage unit is in a low-voltage, high-current discharge state, which requires the auxiliary energy storage unit to have better high-rate discharge performance. [0003] At present, the auxiliary energy storage units commonly used mainly include lead-acid battery pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/04
CPCY02B90/10
Inventor 顾荣鑫马天才蒋煜琪
Owner KUSN FUERSAI ENERGY
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