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Method of controlling a fuel cell system using impedance determination

  • US 8,986,900 B2
  • Filed: 12/04/2013
  • Issued: 03/24/2015
  • Est. Priority Date: 02/25/2009
  • Status: Active Grant
First Claim
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1. A method of controlling a fuel cell system comprising:

  • determining an impedance characteristic of at least one fuel cell, wherein the impedance characteristic is determined while the at least one fuel cell is providing power to a load; and

    controlling the at least one fuel cell based at least in part on the impedance characteristic to optimize at least one operational parameter of the at least one fuel cell while the at least one fuel cell continues providing the power to the load,wherein controlling the at least one fuel cell based at least in part on the impedance characteristic to optimize the at least one operational parameter of the at least one fuel cell comprises at least one of optimizing a fuel utilization of the fuel cell system or minimizing ripple currents through the at least one fuel cell.

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