The traditional AC/DC rectifier usually has the defects of low power factor and serious harmonic distortion and it results in serious pollution to the power system.
This thesis proposes active power factor correction technique using a new AC/DC Dual Boost Converter. For power factor correction, inductor current is operated in the continuous conduction mode. First, the converter is analyzed by state space averaging method. Furthermore, we design applicable compensator by frequency analysis to implement a good power factor system. A classical PFC circuit with PI control law has low power factor under light load. In order to overcome problem, the thesis proposes a Dual Boost Converter circuit with robust performance. Comparing with circuits using PFC IC ¡§UC3854¡¨, the proposed system obtains higher power factor under the condition of the same light load.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-1018110-161729 |
| Date | 18 October 2010 |
| Creators | Zai, Zong-ru |
| Contributors | Yung-Chun Wu, Chieh-Neng Chang, Guan-Syong Huang, Geeng-Kwei Chang, Tzuen-Lih Chern |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1018110-161729 |
| Rights | not_available, Copyright information available at source archive |
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