ABSTRACT
This chapter discusses the basic principles of fuel cells including the history and different types of fuel cells along with their properties, structure, and applications, with a special focus on Polymer Electrolyte Membrane (PEM) fuel cells. Auxiliary devices needed for safe and ef”cient operation of PEM
CONTENTS
4.2 Fuel Cell System Model ...............................................................................86 4.2.1 Polarization Curve Modeling ......................................................... 87 4.2.2 Reactant Supply System Model ...................................................... 91
4.2.2.1 Air Supply System Model ................................................ 91 4.2.2.2 Hydrogen Flow Model ..................................................... 98
4.2.4.1 Fuel Cell Simulations ...................................................... 103 4.2.4.2 Thermal Management Simulations .............................. 107
4.3 Fuel Cell System Control .......................................................................... 110 4.3.1 Flow Control ................................................................................... 111
4.3.1.1 Cathode Flow and Pressure Control ............................ 111 4.3.1.2 Anode Pressure Control ................................................. 115
4.3.2 Temperature Control ..................................................................... 117 4.4 Summary, Conclusions, and Future Work ............................................. 119 References ............................................................................................................. 120
fuel cells are also introduced. Some well-known control-oriented dynamic models of PEM fuel cell components are presented. Simulation analysis of a typical PEM fuel cell is conducted based on the dynamic control-oriented models. Finally, commonly used control algorithms, such as oxygen excess ratio and temperature regulation, are presented and implemented using the control-oriented models.
