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Method, device and system for measuring impedance of fuel cell

A fuel cell and current technology, which is applied in fuel cells, measuring devices, measuring resistance/reactance/impedance, etc., can solve the problem that the cause of the battery voltage drop cannot be quantitatively measured, and achieve the effect of efficient measurement

Inactive Publication Date: 2016-03-02
HYUNDAI MOTOR CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to the THDA method, a battery voltage drop can be easily detected, but the cause of the battery voltage drop may not be quantitatively measured

Method used

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  • Method, device and system for measuring impedance of fuel cell
  • Method, device and system for measuring impedance of fuel cell
  • Method, device and system for measuring impedance of fuel cell

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Embodiment Construction

[0041] In order to fully understand the present invention and the objects achieved by carrying out the present invention, reference will be made to the accompanying drawings showing exemplary embodiments of the present invention and the contents described in the accompanying drawings.

[0042] Hereinafter, the present invention will be described by describing exemplary embodiments of the invention with reference to the accompanying drawings. In describing the present invention, well-known functions will not be described in detail since they might unnecessarily obscure the gist of the present invention. The same reference numerals in the various drawings may refer to the same components.

[0043] Terms used in the present specification are for describing specific exemplary embodiments only, and are not intended to limit the present invention. As used herein, singular forms are intended to include plural forms unless the context clearly dictates otherwise. It can also be under...

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Abstract

Disclosed are a method, a device and a system for measuring impedance of a fuel cell. For example, the method includes: injecting, by an impedance measurement device, a current of an associated wave to the fuel cell; receiving, by the impedance measurement device, a voltage in response to the current of the associated wave from the fuel cell; and measuring, by the impedance measurement device, impedance of the fuel cell using the current of the associated wave and the response voltage. In particular, the associated wave used in the method, the device and the system is a nonsinusoidal periodic wave.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2014-0109925 filed with the Korean Intellectual Property Office on Aug. 22, 2014, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to methods, devices and systems for measuring fuel cell impedance. Specifically, the impedance of the fuel cell can be measured using a non-sinusoidal periodic wave such as a rectangular wave. Background technique [0004] A fuel cell is an electrical power generating device that converts chemical energy produced by the oxidation of fuel directly into electrical energy. A fuel cell is the same as a chemical battery in that it basically uses oxidation and reduction reactions, but it is different from a chemical battery. For example, in a fuel cell, reactants are continuously supplied from the outside and reaction products are continuou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/08G01R31/36
CPCH01M8/04649H01M2008/1095H01M2250/20G01R31/389H01M8/04641Y02T90/40Y02E60/50Y02E60/10H01M10/48G01R27/02
Inventor 元祥卜郑贵成
Owner HYUNDAI MOTOR CO LTD