Back to Search
Start Over
A medium-voltage transformerless AC/DC power conversion system consisting of a diode rectifier and a shunt hybrid filter
- Source :
- IEEE Transactions on Industry Applications. May-June, 2003, Vol. 39 Issue 3, p874, 9 p.
- Publication Year :
- 2003
-
Abstract
- This paper proposes a 3.3-kV transformerless ac-to-dc power conversion system consisting of a three-phase six-pulse diode rectifier and a shunt hybrid filter. The hybrid filter is formed by a single tuned LC filter per phase and a small-rated three-phase active filter, which are directly connected in series without any matching transformer. The required rating of the active filter is much smaller than that of a conventional standalone active filter be. In addition, no additional switching-ripple filter is required for the hybrid filter because the LC filter functions not only as a harmonic filter tuned at the seventh harmonic frequency but also as a switching-ripple filter around 10 kHz. Experimental results obtained from a 200-V 5-kW laboratory system and simulation results of a 3.3-kV 300-kW system confirm the validity and effectiveness of the system. Index Terms--Active filters, diode rectifiers, harmonics, hybrid filters, passive filters, power conversion.
Details
- Language :
- English
- ISSN :
- 00939994
- Volume :
- 39
- Issue :
- 3
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Industry Applications
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.102907232