Development of an Electrical Vehicle Based on Hybrid Power of Fuel Cell Stack and Lithium Ion Battery

• Main Authors: Lin, Hsien-Liang, 林憲良
• Other Authors: Lin, Jeng-Chyan Muti
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/75937668332725121424

碩士 === 國立勤益科技大學 === 電機工程系 === 101 === This study developed a DC power system for a hydrogen powered EV. An innovative hybrid power system composed of PEMFC and lithium ion battery was proposed and tested in the project. In the hybrid power system, PEMFC provided the base load or cruise power for the EV. Lithium ion battery was controlled to meet the peak load or acceleration power for the EV. The current hybrid system intended to fully utilize good traits of fuel cell's high energy density and lithium ion battery's high power density to power the EV. A power management system was designed and implemented to manage the power flows of both electrochemical power sources used in the current study. In order to actively control the power flow of the fuel cell, this study used a two-way converter. This two-way converter was designed to maintain a constant DC bus voltage of the system and facilitate the power flow in and out of the lithium ion battery. An advanced battery management system was also developed in the current study mainly to monitor the state of charge of the battery for better protection. This advanced hybrid power system was installed on a commercial golf car and extensive tests were conducted to evaluate the performance of the hybrid system. Tests showed good drivability by adopting the current hybrid system in both high covered range per charge of hydrogen and good response for acceleration and climbing slopes.