Invention Grant
US08642220B2 Method to improve fuel cell system performance using cell voltage prediction of fuel cell stack
有权
使用燃料电池堆的电池电压预测来改善燃料电池系统性能的方法
- Patent Title: Method to improve fuel cell system performance using cell voltage prediction of fuel cell stack
- Patent Title (中): 使用燃料电池堆的电池电压预测来改善燃料电池系统性能的方法
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Application No.: US12567381Application Date: 2009-09-25
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Publication No.: US08642220B2Publication Date: 2014-02-04
- Inventor: Yanyan Zhang , Sriram Ganapathy , Loren Devries , Bruce J. Clingerman
- Applicant: Yanyan Zhang , Sriram Ganapathy , Loren Devries , Bruce J. Clingerman
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Miller IP Group, PLC
- Agent John A. Miller
- Main IPC: H01M8/04
- IPC: H01M8/04

Abstract:
A system and method for determining the maximum allowed stack current limit rate for a fuel cell stack that considers cell voltage. The method includes estimating a fuel cell stack voltage based on a fuel cell resistance value, stack variables and a current request signal. The fuel cell resistance value can be modeled based on stack temperature and stack relative humidity. The stack variables can include exchange current density and mass transfer coefficient. The method then uses the estimated fuel cell voltage and a look-up table based on estimated voltage to determine a current rate limit value for changing the current of the stack. The method then adds the current rate limit value and the current request signal to obtain the current set-point.
Public/Granted literature
- US20110076582A1 METHOD TO IMPROVE FUEL CELL SYSTEM PERFORMANCE USING CELL VOLTAGE PREDICTION OF FUEL CELL STACK Public/Granted day:2011-03-31
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