Diagnosis device and diagnosis method for 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: 2020-06-02
SHANGHAI HYDROGEN PROPULSION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Diagnosis device and diagnosis method for fuel cell stack system
  • Diagnosis device and diagnosis method for fuel cell stack system
  • Diagnosis device and diagnosis method for fuel cell stack system

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] refer to figure 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] electric stack 11, boost module 12 and electronic load 13;

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

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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 invention relates to the technical field of new energy, and more specifically, to a diagnostic device and a diagnostic method for a fuel cell stack system. Background technique [0002] Hydrogen fuel cell systems have been widely used in passenger cars and commercial vehicles, 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 is critical to its Impact evaluation of application durability. [0003] In vehicle applications, it is necessary to use a high-power step-up DC converter (DC / DC) 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, non-isolated step-up DC converters are mostly used in high-power step-up DC converters. The electromagnetic compatibility problem has always been the biggest difficul...

Claims

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Application Information

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Patent Type & Authority Applications(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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