Study and Implementation of a DSP-Based Single-Phase Active Power Factor Correction AC/DC Converter

• Main Authors: Ming-Jun Hsu, 許銘圳
• Other Authors: Chih-Chiang Hua
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/95431676306573326421

碩士 === 國立雲林科技大學 === 電機工程系碩士班 === 91 === This thesis presents a DSP-based fully digital-controlled single-phase power factor converter (PFC). The proposed PFC controller consists of an inner current-loop controller and an outer voltage-loop controller. The current-loop controller adopts hysteresis current control to achieve power factor correction. The voltage-loop controller employs a PI controller to achieve output voltage regulation. This paper adopts TMS320F240 digital signal processor (DSP) as the controller to achieve high power factor, low steady-state error, output voltage regulation, phase- locked loop and parallel operation. Finally, an experimental test was carried out on a 500 W PFC converter using DSP controller and the experimental results verify the feasibility and superiority of the proposed digital AC/DC converter.