文档介绍：ABSTRACT
The fuel cell is a continuous supply of fuel and oxidizer in the chemical can be continuously transformed into electrical energy chemical device. Fuel cell efficiency ,zero pollution emissions on the environment-friendly, types of fuel cell, one of the PEMFC in the field of public and civil ,militrary defence , of the low operating temperature,ranking moving fast ,high energy density,long life, it both as a mobile power supply ordistributed power plants have broad application , through bination of methods of modeling and simulation and experimental study of proton exchange membrane fuel cell system performance, as well as the main factore for the promotion and application of proton exchange memmbrane fuel cells has important theoretical and pratical significance .
Of this paper is focused on proton exchange membrane fuel cell system, and then the system on the basic of thermodynamic analysis, the establishment of the fuel cell voltage model , hydrogen ,oxygen partical pressure model ,with the help of matlab in simulink Tools to create the system simulation bination of methods of experimental analysis and simulation analysis of the technical performance of the system under different operating parameters ; the operating parameters such as temperature ,gas partial pressure on the polarization curve,the technical performance .The simulation reults show that: (1)The working pressure is conducive to the improvement of the improvement of the overall battery performance .(2) Temperature increases ,waking the hydrogen partial pressure and oxygen pressure drop ,operating temperature range , the battery temperature ,themodynamic protential ,ohmic polarization protentical and activation polarization potential decreased.
The innovation of this paper points: focus on PEMFC system, on the basis of thermodynamic analysis of the system voltage model the presure model, and with matlab siulink tool to establish