Implementation of DSP-Based Power Converters for Fuel-cells

• Main Authors: Hon-sing Wu, 吳鴻鑫
• Other Authors: Sheng-nian Yeh
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/35vy44

碩士 === 國立臺灣科技大學 === 電機工程系 === 94 === This thesis presents the design and implementation of digital signal processor based power converters for fuel-cells. The power converters can not only transfer the power from fuel-cells to the load, but also improve the energy efficiency. In the proposed system, a full-bridge dc-dc power converter is designed to boost dc bus to 200V. Moreover, the high-frequency zero-voltage switching technigue is adopted for the power transmission. In addition, a buck/boost chopper is introduced to charge or discharge batteries in order to regulate the power between fuel-cells and batteries. Finally, a single-phase inverter is added to convert dc bus into a 110V, 60Hz single-phase ac source. For implementation, the digital signal processor, DSP TMS320LF2407A, is used to control the system with the voltage and current feedbacks. The control of the full-bridge power converter, the dc chopper and the inverter are all conducted by software to reduce the component counts. A prototype of 500W fuel-cell generation system is developed. The feasibility of the generation system is verified experimentally.