发明名称 |
METHOD AND SYSTEM FOR MEASURING IMPEDANCE FOR STATE DIAGNOSIS OF FUEL CELL STACK |
摘要 |
The present invention relates to a method and system for measuring an impedance of fuel cell stack in order for a state diagnosis of a fuel cell stack, which quickly measure an impedance for a plurality of frequencies of a fuel cell stack by using a sinusoidal signal, obtained by synthesizing different frequencies, as an impedance measurement input signal. According to an embodiment of the present invention, an impedance measurement method for a state diagnosis of a fuel cell stack includes synthesizing a plurality of sinusoidal signals having different frequencies; applying the synthesized signal as a measurement input signal to the fuel cell stack; measuring a current and voltage of the fuel cell stack; converting the measured current and voltage of the fuel cell stack in a set method; and calculating an impedance of the fuel cell stack for the different frequencies on the basis of the current and voltage of the fuel cell stack converted in the set method. |
申请公布号 |
KR20140085802(A) |
申请公布日期 |
2014.07.08 |
申请号 |
KR20120155394 |
申请日期 |
2012.12.27 |
申请人 |
HYUNDAI MOTOR COMPANY;KANGNAM UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION |
发明人 |
JEONG, KWI SEONG;KIM, SAE HOON;LEE, YOUNG HYUN |
分类号 |
G01R31/36;G01R27/08;H01M8/04 |
主分类号 |
G01R31/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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