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A diagnostic device and diagnostic method for a fuel cell stack system

A technology for fuel cell stacks and diagnostic devices, which is applied in the direction of testing electrical devices, measuring devices, and measuring electricity during transportation, and can solve the problems of stack diagnostic impact and low diagnostic accuracy, so as to reduce diagnostic impact and achieve healthy degree of effect

Active Publication Date: 2021-01-22
SHANGHAI HYDROGEN PROPULSION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, due to the limitation of volume power density and mass power density, high-power step-up DC converters mostly use non-isolated step-up DC converters, and its electromagnetic compatibility problem has always been the biggest difficulty in vehicle applications.
[0006] However, the current diagnostic techniques will affect the stack diagnosis, and the diagnostic accuracy is low

Method used

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  • A diagnostic device and diagnostic method for a fuel cell stack system
  • A diagnostic device and diagnostic method for a fuel cell stack system
  • A diagnostic device and diagnostic method for a fuel cell stack system

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Embodiment Construction

[0038]The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0039]referencefigure 1 ,figure 1 It is a schematic structural diagram of a fuel cell stack system in the prior art.

[0040]The fuel cell stack system mainly includes:

[0041]Stack 11, boost module 12 and electronic load 13;

[0042]Wherein, the first output terminal of the stack 11 is connected to the first terminal of the boost module 12 through a switch, and the second output terminal is connected to the second terminal of the boost module 12 throu...

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PUM

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Abstract

The invention provides a diagnosis device and a diagnosis method for a fuel cell stack. According to the diagnosis device, interference signals of the boosting module and the electronic load are filtered through the electromagnetic filtering module, so that the diagnosis influence of the boosting module and the electronic load on the galvanic pile is reduced to a great extent, and the health degree diagnosis of the galvanic pile is realized by injecting required disturbance signals into the output end of the galvanic pile in combination with the galvanic pile disturbance module.

Description

Technical field[0001]The present invention relates to the technical field of new energy sources, and more specifically, to a diagnosis device and a diagnosis method of a fuel cell stack system.Background technique[0002]Hydrogen fuel cell systems have been widely used in passenger cars, commercial vehicles and other fields, so the health diagnosis of fuel cell stacks has attracted more and more attention in the industry, especially the working status of fuel cell stacks. Evaluation of the impact of application durability.[0003]In vehicle-mounted applications, a high-power boost DC converter (DC / DC) is required to realize the energy coupling between the output power of the fuel cell stack and the power battery of the vehicle.[0004]However, due to the limitation of volume power density and mass power density of high-power boost DC converters, non-isolated boost DC converters are often used. The electromagnetic compatibility problem has always been the biggest difficulty for vehicle app...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/378G01R31/392G01R31/00
CPCG01R31/001G01R31/003G01R31/006G01R31/378G01R31/392
Inventor 涂文特姜峻岭郁召锋周艳新贾振宇孙玮瞳王青松
Owner SHANGHAI HYDROGEN PROPULSION TECH CO LTD
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