Abstract
In this paper, a start-up scheme is proposed and investigated for a three-phase isolated full-bridge boost power factor correction (PFC) converter with the passive flyback auxiliary circuit. Configuration derivation in ac side of the PFC converter has been done, and the three boost inductors are replaced by three coupled-inductors with flyback inductors. In starting state, the PFC converter operates in a flyback mode, and the charging of its output filter capacitor can be realized with the help of the adding flyback inductors. Operational principles of the PFC converter are discussed in both steady and starting states. Furthermore, design considerations of the key parameters in starting state are analyzed through comparing with the characteristics of the PFC converter in steady state. Finally, the experimental study of the proposed start-up scheme has been done on a 1.7-kW laboratory-made three-phase PFC prototype, and feasibility of the presented method and validity of the theoretical analysis are verified by the experimental results.
| Original language | English |
|---|---|
| Article number | 7878513 |
| Pages (from-to) | 6042-6051 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 64 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2017 |
| Externally published | Yes |
Keywords
- Boost
- flyback
- passive auxiliary circuit
- start-up
- three-phase power factor correction (PFC)
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