Electrical Characteristics Study of a Hybrid PEMFC and Ultracapacitor System
Jia, J.; Wang, G.; Cham, Y.T.; Wang, Y.; Han, M.
Industrial Electronics, IEEE Transactions on
Volume PP, Issue 99, 0 Page(s):1 - 1
Digital Object Identifier   10.1109/TIE.2009.2022066
Summary:This paper presents the characteristics study of a clean hybrid power supply system combining proton exchange membrane fuel cell (PEMFC), as the main power source, and ultracapacitor (UC), as the energy storage unit. Unlike the conventional fuel cell hybrid system with power conditioning unit (PUC), the study investigated the electrical characteristic of PEMFC and UC hybrid system without DC/DC converter. As a platform to evaluate the proposed system, the fuel cell based electric bicycle is implemented. The platform consists of PEMFC stack, metal hydride, thermal balance system, UC, DC motor, system control and data logging unit as well as user interface. The test results showed that the proposed architecture is functional and lead to good results. By the road testing, it verified that the PEMFC can provide the rated power to the load and the UC can deliver the power when system startup and the peak power if needed. The road testing results showed that the design objectives are fulfilled.

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