Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1997-03-31
1999-07-13
Gaffin, Jeffrey A.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 64, 320101, 323906, 323 74, 136206, 136292, 244173, G05F 500
Patent
active
059231009
ABSTRACT:
A system for controlling power supplied by a solar array panel to one of either a load or a battery for optimal power consumption is disclosed. The solar array power control system of the present invention includes a power stage for directing the solar array to discharge an appropriate amount of current, a signal conditioner for receiving and conditioning voltage and current signals from the solar array and determining the signs of the time derivatives of solar array voltage and power, a processor for evaluating the signs of the time derivatives of solar array power voltage and for directing operation of either a battery current control mode or a peak power tracking mode and a high gain amplifier for directing an appropriate voltage to the power stage according to the operating mode. The signal conditioner, processor and high gain amplifier cooperate to determine whether the solar array is capable of supplying the power demanded by at least one of the battery and the load. When it has been determined that the required power level to be supplied from the solar array is within the capability of the solar array, the system commands the solar array to discharge the exact power demanded. In times when the solar array is not capable of completely satisfying the required power level, the system commands the solar array to discharge the maximum power available under the present conditions.
REFERENCES:
patent: 3384806 (1968-05-01), Hartman
patent: 3566143 (1971-02-01), Paine et al.
patent: 4163194 (1979-07-01), Ross
patent: 4175249 (1979-11-01), Gruber
patent: 4204147 (1980-05-01), Larrabee
patent: 4223214 (1980-09-01), Dorian et al.
patent: 4327318 (1982-04-01), Kwon et al.
patent: 4333136 (1982-06-01), Baker
patent: 4375662 (1983-03-01), Baker
patent: 4404472 (1983-09-01), Steigerwald
patent: 4445049 (1984-04-01), Steigerwald
patent: 4580090 (1986-04-01), Bailey et al.
patent: 4604567 (1986-08-01), Chetty
patent: 4794272 (1988-12-01), Bavaro et al.
patent: 4873480 (1989-10-01), Lafferty
patent: 5268832 (1993-12-01), Kandatsu
patent: 5327071 (1994-07-01), Frederick et al.
patent: 5394075 (1995-02-01), Ahrens et al.
patent: 5604430 (1997-02-01), Decker et al.
Roesler, Dietrich J., "60kW Solar Cell Power System with Peak Power Tracking and Utility Interface", Jun. 1978, pp. 978-983.
Salim, Abbas A., "Regulation and Control of Solar Array Power--A Minimum Power Dissipation Approach", Oct. 1978, pp. 121-127.
"Sun Tracker for Clear or Cloudy Weather", NASA Tech Briefs, Spring 1979, p.42.
"Solar Power Conditioner", NASA's Jet Propulsion Laboratory.
Lukens Frederick E.
Moser Robert L.
Gaffin Jeffrey A.
Lockheed Martin Corporation
Paladini Albert W.
LandOfFree
Apparatus for controlling a solar array power system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling a solar array power system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling a solar array power system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2278338