Design and Development of Control System to Optimize PEM Fuel cell Performance

Please enable javascript in your browser.

Farshidian, Behzad | 2012

571 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 42989 (46)
University: Sharif University of Technology
Department: Energy Engineering
Advisor(s): Roshandel, Ramin
Abstract:
Fuel cells are a reliable technology for electrical power generation, widely regarded as a promising alternative for stationary and mobile applications. In order to supply vehicle required power, fuel cell must possess suitable transient response. In this work, a mathematical zero dimensional control-oriented model for a PEM fuel cell stack is developed. Afterwards, to increase the efficiency, four parameters including cathode air inlet flow rate, return manifold cross section area, anode hydrogen inlet flow rate and hydrogen humidity are optimized in different vehicle current demand. Also, in order to decrease water production inside the fuel cell membrane, considered parameters are analyzed and eventually, return manifold cross section area is selected as the best parameter to be changed for addressing this problem. It was observed that power loss arisen from hydrogen flow rate variation is averagely 74% more than that of caused by means of altering cathode return manifold cross section area. Influence of other parameters on the power drop rate for several currents are assessed and analyzed and control parameters and their control conditions are presented.
Keywords:
Fuel Cell ; Water Management ; Modeling ; Power Optimization ; Optimal Control

No TOC