ONLINE IMPEDANCE MEASUREMENT APPARATUS FOR FUEL CELL STACK

WIPO Patent Application WO/2023/165027

A1

An online impedance measurement apparatus for a fuel cell stack. In the measurement apparatus, an excitation signal applying module is connected to a DC blocking module; the DC blocking module, a current measurement module, and a response signal acquisition module are all connected to a fuel cell stack to be measured; an impedance calculation module is separately connected to the current measurement module and the response signal acquisition module; the excitation signal applying module is used for generating an excitation signal and applying the excitation signal to the fuel cell stack to be measured; the current measurement module is used for measuring an excitation signal which is applied to the fuel cell stack to be measured and processed by the DC blocking module; the response signal acquisition module is used for acquiring a response signal generated by exciting, by means of the excitation signal processed by the DC blocking module, the fuel cell stack to be measured; the impedance calculation module is used for calculating, according to the excitation signal measured by the current measurement module and the response signal acquired by the response signal acquisition module, the impedance of the fuel cell stack to be measured.

GAO JINWU (CN)
WANG YILIN (CN)
HU YUNFENG (CN)
CHEN HONG (CN)
YIN HAI (CN)

PCT/CN2022/094025

September 07, 2023

May 20, 2022

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UNIV JILIN (CN)

G01R31/382; G01R31/378; G01R31/389

CN101806865A	2010-08-18
CN201765311U	2011-03-16
CN110376438A	2019-10-25
CN111650525A	2020-09-11
CN113884920A	2022-01-04
CN106597109A	2017-04-26
US20170003354A1	2017-01-05
CN110940926A	2020-03-31
CN104062506A	2014-09-24
CN106093583A	2016-11-09

BEIJING GAOWO LAW FIRM (CN)

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