A Fuel Cell Cascade Power Generation System Based on Hydration State Adaptive Balance
An adaptive equalization, fuel cell technology, used in fuel cells, fuel cell control, fuel cell additives, etc., can solve the problems of low efficiency of fuel cell systems, affecting the life of fuel cells, etc., to avoid membrane drying and water flooding. phenomenon, service life extension, effect of improving consistency
Active Publication Date: 2020-12-08
QINGDAO UNIV
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Problems solved by technology
[0005] Aiming at the problem that the efficiency of the existing fuel cell system is not high and affects the service life of the fuel cell, the present invention provides a fuel cell cascade power generation system based on self-adaptive balance of hydration state to improve the efficiency of each fuel cell module in the fuel cell cascade unit. The consistency of the hydration state avoids the occurrence of membrane dryness and water flooding in the high-power fuel cell system, improves the energy efficiency of the high-power integrated fuel cell system, and contributes to the service life of the high-power integrated fuel cell cascade power generation system extension of
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[0032] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0033] combine figure 1 and figure 2 , a fuel cell cascade power generation system based on hydration state adaptive equalization, comprising a fuel cell cascade unit 12 , a fuel cell hydration state equalization unit 14 , a fuel cell auxiliary unit 16 , a DC conversion unit 18 and a main control unit 20 .
[0034] The fuel cell cascade unit 12 is connected to the fuel cell hydration state equalization unit 14 and the fuel cell auxiliary unit 16 respectively, the fuel cell hydration state equalization unit 14 is connected to the DC conversion unit 18, and the main control unit 20 is respectively connected to the fuel cell auxiliary unit 16 Connected to the DC conversion unit 18 , the fuel cell hydration state equalization unit 14 is also connected to a fuel cell hydration state self-adaptive equalization slave control uni...
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The invention discloses a fuel cell cascade power generation system based on hydration state self-adaptive equalization. The system comprises a fuel cell cascade unit, a fuel cell hydration state equalization unit, a fuel cell auxiliary machine unit, a DC conversion unit and a main control unit. The fuel cell cascade unit is connected with the fuel cell hydration state equalization unit and the fuel cell auxiliary machine unit; the fuel cell hydration state equalization unit is connected with the DC conversion unit; the main control unit is connected with the fuel cell auxiliary machine unit and the DC conversion unit, and the fuel cell hydration state equalization unit is also connected with a fuel cell hydration state self-adaptive equalization slave control unit. According to the invention, the system achieves the adjustment of the membrane water content by adaptively controlling the output voltage of a fuel cell module, can effectively avoid the membrane dryness and water logging phenomena in the actual operation process of a high-power fuel cell system, can effectively reduce the influence of the membrane dryness and water logging phenomena on the performance decline and durability of a proton exchange membrane, improves the cell efficiency, and prolongs the service life.
Description
technical field [0001] The invention relates to the field of fuel cell systems, in particular to a fuel cell cascaded power generation system based on self-adaptive balance of hydration state. Background technique [0002] As a new form of renewable energy, hydrogen energy has been paid more and more attention to its research and application. As one of its main applications, high-power integrated fuel cell power generation has broad application prospects. In recent years, with the progress of fuel cell manufacturing process and system integration technology, the power density of fuel cell systems has been continuously increased, and the service life has been continuously extended, which makes the application scenarios of high-power integrated fuel cell systems continue to expand. At present, high-power integrated fuel cell systems have achieved rapid development in the application of distributed power generation and transportation. [0003] The working principle of the exis...
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IPC IPC(8): H01M8/04298H01M8/04992
CPCH01M8/04298H01M8/04992Y02E60/50
Inventor 彭飞李立伟王凯张明
Owner QINGDAO UNIV