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Adaptive method for conversion of external power request to current setpoint to a fuel cell system based on stack performance
US9105892B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105892-B2 |
| Application number | US-72426210-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2010 |
| Priority date | Mar 15, 2010 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A system and method for converting a fuel cell stack power request signal to a stack current set-point that considers stack performance parameters. The method includes obtaining a power-current relationship curve of the fuel cell stack to provide stack parameters including exchange current density and mass transfer coefficient. The method then calculates a slope for the stack using the parameters from the power-current relationship curve estimation that includes calculating a cell voltage at two predetermined stack current densities. The method then calculates a change in current in response to the power request signal, the stack voltage, the stack current and the calculated slope, and uses the change in current to update the current set-point for the stack.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for determining a current set-point for a fuel cell stack, said method comprising: a controller of a fuel cell system programmed to control the fuel cell stack by: estimating a power-current relationship curve of the fuel cell stack; providing parameters from the power-current relationship curve estimation; calculating a slope for the stack based on the life of the stack using the parameters from the power-current relationship curve estimation…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9105892B2 cover?
- A system and method for converting a fuel cell stack power request signal to a stack current set-point that considers stack performance parameters. The method includes obtaining a power-current relationship curve of the fuel cell stack to provide stack parameters including exchange current density and mass transfer coefficient. The method then calculates a slope for the stack using the paramete…
- Who is the assignee on this patent?
- Ganapathy Sriram, Mallavarapu Kiran, Lixfeld Stefan W, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04559. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).