Development of Electric Power Control using the Capacitance Characteristics of the Fuel Cell

Paper #:
  • 2011-01-1346

Published:
  • 2011-04-12
Citation:
Imanishi, H., Manabe, K., Ogawa, T., and Nonobe, Y., "Development of Electric Power Control using the Capacitance Characteristics of the Fuel Cell," SAE Int. J. Engines 4(1):1879-1887, 2011, https://doi.org/10.4271/2011-01-1346.
Pages:
9
Abstract:
Cold weather operation has been a major issue for fuel cell vehicles (FCV). In order to counteract this effect on FCV operation, an approach for rapid warm-up operation based on : concentration overvoltage increase and conversion efficiency decrease by limiting oxygen or hydrogen supply, was adopted in a running fuel cell hybrid vehicle. In order to adjust the output power response of the fuel cell to the target power of the vehicle, -the inherent capacitance characteristics of the fuel cell were measured- based on the oxidation-reduction reaction and an electric double-layer capacitor, and an equivalent electric circuit model of a fuel cell with the capacitance was constructed. This equivalent electric circuit model was used to develop a power control algorithm to manage absorption of the surplus power, or deviation, to the capacitance. It was confirmed that the rapid warm-up operation could follow the output power response and warm-up performance reasonably well, and this control was applied to the new Toyota FCHV-adv, released in June 2008.
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