Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1991-12-17
1994-06-07
Sterrett, Jeffrey
Electric power conversion systems
Current conversion
Having plural converters for single conversion
363 70, 307 82, H02M 723
Patent
active
053195361
ABSTRACT:
A plurality of AC/DC converters connected in parallel, are provided in which any one of the power converters can fail with-out affecting the operation of the machine which the plurality of converters are providing power. The failed AC/DC converter can be removed and replaced by another converter without shutting down the system. The output voltage of each converter is sensed on the power supply side of a decoupling diode. This allows each one of the converters to operate with its own sense loop and, therefore, the feedback loop does not open when a converter is removed and another used in its place. Each of the parallel connected AC/DC converters is designed to provide a preset maximum power which is independent of AC line voltage variation. To limit the power, the control voltage is made inversely proportional to the average input AC line voltage. The output voltage of the AC/DC converter is made to vary as a function of the load. This allows all the converters in parallel to provide power to the load all the time.
REFERENCES:
patent: 3808452 (1974-04-01), Hutchinson
patent: 3988661 (1976-10-01), McCoy
patent: 4013938 (1977-03-01), McCoy
patent: 4074182 (1978-02-01), Weischedel
patent: 4230981 (1980-10-01), Rambold
patent: 4257090 (1981-03-01), Kruger et al.
patent: 4628433 (1986-12-01), Notohamiprodjo
patent: 4860188 (1989-08-01), Bailey et al.
patent: 5036452 (1991-07-01), Loftus
International Business Machines - Corporation
Steinberg William H.
Sterrett Jeffrey
LandOfFree
Power system for parallel operation of AC/DC convertrs does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power system for parallel operation of AC/DC convertrs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power system for parallel operation of AC/DC convertrs will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-797756