Fuel cell alternating current impedance test equipment and system

A fuel cell and AC impedance technology, applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc., can solve problems such as inability to save energy and reduce consumption, affect other equipment, and unreasonable heat dissipation, so as to reduce volume and prolong service life , to avoid the effect of wasting

Inactive Publication Date: 2022-07-01
苏州弗赛新能源科技有限公司
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Problems solved by technology

This working method dissipates the electric energy from the fuel cell in the form of heat, which wastes this part of energy and cannot save energy and reduce consumption. At the same time, in order to dissipate heat, the electronic load device is generally bulky and has many cooling fans. , the noise is also very large; if the heat dissipation is unreasonable, it will seriously affect the normal operation of other equipment, and its own devices are also easily damaged due to high temperature
In today's increasingly scarce energy and strong awareness of environmental protection, in the high-power test of fuel cells, this electronic load device has obvious defects

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  • Fuel cell alternating current impedance test equipment and system
  • Fuel cell alternating current impedance test equipment and system
  • Fuel cell alternating current impedance test equipment and system

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Embodiment Construction

[0030] In order to make the technical solutions and beneficial effects of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present application are clearly and completely described below by listing specific embodiments. Obviously, the described embodiments are only the present invention. Some embodiments are claimed, but not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0031] It should be noted that, in this application, words such as "for example" or "exemplary" are used to represent examples, illustrations or illustrations. Any embodiment or design described in this application as "such as" or "exemplary" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "such as" or "exemplary" is in...

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Abstract

The embodiment of the invention provides a fuel cell alternating current impedance test device and system, and the device comprises a control system and a feedback type electronic load. The feedback type electronic load is provided with an input end used for being connected with the fuel cell, and the feedback type electronic load applies a sine test signal of a first frequency or applies a basic test signal to the fuel cell under the control of the control system; the feedback type electronic load is also provided with an output end used for being connected with a power grid so as to feed back at least part of electric energy generated in the alternating current impedance testing process of the fuel cell to the power grid. Thus, energy recycling is achieved, the heat dissipation problem is relieved, and the equipment size is reduced; in addition, the use of components can be saved, and the service life of the components is prolonged; electric energy full feedback in the testing process is achieved, and waste of disturbance testing signals is avoided.

Description

technical field [0001] The invention relates to the technical field of fuel cell testing, in particular to a fuel cell AC impedance testing device and system. Background technique [0002] A fuel cell is a device that converts the chemical energy of fuel into electrical energy through an electrochemical reaction. Compared with other types of new energy, fuel cells have the advantages of high power generation efficiency, low environmental pollution, high energy density, and simple and flexible assembly. From the current practical point of view, there are still many problems in fuel cells, such as life problems, reliability problems and cost problems. Among them, reliability is one of the key factors restricting the large-scale application and commercialization of fuel cells. The AC impedance of the fuel cell can reflect the internal state of the stack and the single chip. Therefore, by measuring the AC impedance of the stack and the single chip, the internal state can be obt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/389
CPCG01R31/389
Inventor 房振东李保健
Owner 苏州弗赛新能源科技有限公司
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