Abstract
This paper proposes a new three-phase diode rectifier system with a sinusoidal input current at unity power factor and a regulated and isolated output voltage at low level. The inherent natural wave-shaping capability of the reduced kVA polyphase transformer together with an active current wave-shaping technique results in a significant reduction of input and output filter requirements associated with switching ripple and EMI. The operation principles are described along with a design example and a comparative evaluation. Experimental results on a 1.5kW prototype are provided to validate the proposed concept.
| Original language | English |
|---|---|
| Pages (from-to) | 173-179 |
| Number of pages | 7 |
| Journal | Journal of Power Electronics |
| Volume | 9 |
| Issue number | 2 |
| State | Published - 20 Mar 2009 |
Keywords
- Iron loss diode rectifier
- P-Q circle diagram
- Parameter measurement
- Permanent magnet synchronous motor
- Polyphase transformer
- Three-phase power factor correction
- Waveshaping
