Electrical transmission or interconnection systems – With harmonic filter or neutralizer
Patent
1997-10-27
1999-05-11
Gaffin, Jeffrey
Electrical transmission or interconnection systems
With harmonic filter or neutralizer
363 39, 363 44, 323207, 333167, H02J1/02
Patent
active
059030666
ABSTRACT:
An active interphase reactor for twelve-pulse diode rectifiers is disclosed. The system draws near sinusoidal currents from a power utility. In one embodiment, a low kVA (0.02 P.sub.o (PU)) active current source injects a triangular current into an interphase reactor of a twelve-pulse diode rectifier. This modification results in near sinusoidal utility input currents with less than 1% THD. In alternative embodiments, a low kVA, 12-pulse system with an autotransformer arrangement (kVA rating of 0.18 P.sub.o (PU)) is implemented with the proposed active interface reactor. The resulting systems draw clean power from the utility and are suitable for powering larger kVA ac motor drive systems.
REFERENCES:
patent: 4143414 (1979-03-01), Brewster et al.
patent: 4739466 (1988-04-01), Glennon et al.
patent: 5283726 (1994-02-01), Wilkerson
patent: 5343079 (1994-08-01), Mohan et al.
patent: 5345375 (1994-09-01), Mohan
patent: 5351180 (1994-09-01), Brennen et al.
patent: 5465203 (1995-11-01), Bhattacharya et al.
patent: 5499178 (1996-03-01), Monhan
patent: 5656924 (1997-08-01), Mohan et al.
patent: 5691577 (1997-11-01), Smith
Choi, Sewan et al., "A New Active Interphase Reactor for 12-Pulse Rectifiers Provides Clean Power Utility Interface", IEEE, pp. 2468-2474, 1995.
Choi, Sewan et al., "Polyphase Transformer Arrangements With Reduced kVA Capacities For Harmonic Current Reduction in Rectifier Type Utlility Interface", IEEE, pp. 353-359.
Enjeti Prasad N.
Pitel Ira J.
Gaffin Jeffrey
Kaplan Jonathon S
Texas A & M University System
LandOfFree
Active interphase reactor for 12-pulse rectifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Active interphase reactor for 12-pulse rectifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active interphase reactor for 12-pulse rectifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-247321