Design Of Power Management System For Methanol Reform Fuel Cell

With the rapid development of science and technology, the demand of energy fromthe parties of social grow with each passing day. MEMS micro power sources as a newenergy form, widely favored because of its high energy density and simple structure byall walks of life. Micro Reformed Methanol Fuel Cell System is composed of aminiature methanol reforming power management system of fuel cell and its controlcircuit composition, is most likely to replace one of the traditional energy and newenergy.This paper deeply analyzes the domestic and foreign study in the status of MicroReformed Methanol Fuel Cell System and power management system as to determinethe reasonable method. Analysis of working characteristics of micro methanolreforming fuel cell, base thermal exchange model for fluid in establishing dynamicsmodel, established the mathematical model between the temperature and the fuel rateand reaction of the fuel cell working process flow of methanol reforming is deduced andestablished the micro reaction process and the macro cell system work contact.Directed by the mathematical modeling, a fuel cell dynamic characteristicsimulation model has been established on the Simulink software and processed thesimulation result. And a series of experiments has been practiced and estimated theaccuracy of the simulation results. The effective of fuel flowing velocity andtemperature on the battery system has been revealed by both of the simulation andexperiment results. This result has been analyzed and finally determined the objectiveand most of the parameters for power management system.Basing on the mathematical modeling simulation and the experimental verificationand comparative analysis results. A power management system has been design whichincludes a microprocessor, a temperature control system, a fluid velocity controlsystem, DC/DC regulation system and auxiliary power module.