The Design And Research Of Hybrid Power System For Fuel Cell Electric Vehicle With On-board Hydrogen Production

Automobile is one of the most influential modern industrial technology achievements, and the automobile industry is an important pillar of the modern world economy. It has made great influences. However, with the use of a large number of cars, it has and will continue to cause serious problems of environment and human survival.Fuel cell electric vehicle has many advantages and great potential. But the pure fuel cell electric vehicle will also bring about a lot of problems, such as bulky and heavy power equipment, long start time, low efficiency in the condition of rapid acceleration and low speed and so on.Combined with the advantages of various types of electric vehicles, this design of fuel cell electric vehicle, solve the storage and transportation of hydrogen, and meet the special requirements for energy recovery, power and dynamic characteristics. the scheme, using the on-board hydrogen, removing the high pressure hydrogen storage device, use fuel cell as active power and lithium batteries as auxiliary to drive motor. Based on the design and simulation, we have produced the prototype and control board of main system such as electrical driving system, the battery management system and the energy converter.According to the characteristics of the fuel cell, lithium battery and electric vehicle, this paper designed the hybrid power system. In the simulation platform ADVISOR based on the MATLAB/Simulink environment, we build the hybrid electrical driven model and the pure fuel cell driven model, and comparative analyze the results. The fuel cell and lithium battery in hybrid drive model are working at efficient and safe operation zone, and have small output power fluctuation, high energy efficiency. The management of charging and discharging of lithium battery is efficient.