@article{Wu:2014:10.1016/j.ijhydene.2014.03.083, author = {Wu, B and Parkes, MP and Yufit, V and De, Benedetti L and Veismann, S and Wirsching, C and Vesper, F and Martinez-Botas, RF and Marquis, AJ and Offer, GJ and Brandon, NP}, doi = {10.1016/j.ijhydene.2014.03.083}, journal = {International Journal of Hydrogen Energy}, pages = {7885--7896}, title = {Design and testing of a 9.5 kWe proton exchange membrane fuel cell-supercapacitor passive hybrid system}, url = {http://dx.doi.org/10.1016/j.ijhydene.2014.03.083}, volume = {39}, year = {2014} }
TY - JOUR AB - The design and test of a 9.5 kWe proton exchange membrane fuel cell passively coupled with a 33 × 1500 F supercapacitor pack is presented. Experimental results showed that the system reduced dynamic loads on the fuel cell without the need for additional DC/DC converters. Fuel efficiency gains of approximately 5% were achieved by passive hybridisation in addition to addressing two main operational degradation mechanisms: no-load idling and rapid load cycling.Electrochemical Impedance Spectroscopy measurements indicated that the supercapacitor capacitance dropped with decreasing cell voltage and suggested that operation below 1.3 V is not recommended. Knee-frequency measurements suggested little benefit was gained in using passive systems with load cycles that have frequency components above 0.19 Hz. Analysis of system sizing suggested using the minimum number of supercapacitors to match the open circuit voltage of the fuel cell to maximise load buffering. AU - Wu,B AU - Parkes,MP AU - Yufit,V AU - De,Benedetti L AU - Veismann,S AU - Wirsching,C AU - Vesper,F AU - Martinez-Botas,RF AU - Marquis,AJ AU - Offer,GJ AU - Brandon,NP DO - 10.1016/j.ijhydene.2014.03.083 EP - 7896 PY - 2014/// SN - 0360-3199 SP - 7885 TI - Design and testing of a 9.5 kWe proton exchange membrane fuel cell-supercapacitor passive hybrid system T2 - International Journal of Hydrogen Energy UR - http://dx.doi.org/10.1016/j.ijhydene.2014.03.083 UR - http://www.sciencedirect.com/science/article/pii/S0360319914007393 VL - 39 ER -
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