Design and Implementation of Charge Equalization Circuit for LiFePo4 Batteries
| Autor: | Po-Yi Li, 李柏儀 |
|---|---|
| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 99 This thesis presents the design and implementation of charging equalization circuit for LiFePo4 batteries. The circuit can not only transfer the power from LiFePo4 battery to the load, but also improve stability and safety of the system. Due to the different charging/discharging characteristics and ageing degree of the batteries, the restored capacity in each battery may not be the same in string batteries charging. Therefore, it will reduce the charging /discharging efficiency and damage the battery cycle life. In order to increase the charging/discharging efficiency and extend the battery cycle life, the charger for the battery string must have the capability of charging equalization. LiFePo4 batteries module including a charging equalization circuit that can ensure charging voltage to be regulated and improve the performance of LiFePo4 batteries The digital signal processor, DSP TMS320LF2407A, is used to control the system. A charging equalization circuit is constructed and tested to verify the system performance. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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