| 发明名称 | Apparatus and method for measuring impedance of fuel cell stack | ||
| 摘要 | An apparatus and method for measuring impedance of a fuel cell stack capable of accurately measuring the impedance even when a DC current of the fuel cell stack is changed depending on fluctuation of a load, by compensating for an AC voltage (or AC current) used to measure the impedance of the fuel cell stack based on a DC current of the fuel cell stack. | ||
| 申请公布号 | US9575136(B2) | 申请公布日期 | 2017.02.21 |
| 申请号 | US201414562263 | 申请日期 | 2014.12.05 |
| 申请人 | HYUNDAI MOTOR COMPANY | 发明人 | Won Sang Bok;Jeong Kwi Seong |
| 分类号 | G01N27/416;G01R31/36 | 主分类号 | G01N27/416 |
| 代理机构 | McDermott Will & Emery LLP | 代理人 | McDermott Will & Emery LLP |
| 主权项 | 1. An apparatus for measuring impedance of a fuel cell stack, comprising: an AC current applier configured to apply AC current to a fuel cell stack; an AC voltage measurer configured to measure an AC voltage of the fuel cell stack; a DC current measurer configured to measure a DC current of the fuel cell stack; an AC voltage compensator configured to compensate for the AC voltage measured by the AC voltage measurer based on the DC current measured by the DC current measurer; and an impedance measurer configured to measure impedance of the fuel cell stack based on the AC voltage compensated by the AC voltage compensator and the AC current applied by the AC current applier. | ||
| 地址 | Seoul KR | ||