Method and apparatus for adaptive and corrective determination o

Details Method and apparatus for adaptive and corrective determination o Method and apparatus for adaptive and corrective determination o

1995-02-21

1997-03-25

Cosimano, Edward R.

Boots, shoes, and leggings

340636, 364569, 320 48, 307 66, G04F 700

Patent

active

056151292

ABSTRACT:
The run-time available from an uninterruptible power system is accurately determined both during supply of power from the battery to the load and during the time where power is supplied directly from an AC power system to the load. During power outages, where power is supplied from the battery through the inverter to the load, the remaining run-time is first estimated by calculation and then corrected by modification of the calculated value according to the reciprocal of the run-time slope. Alternatively, a scaling factor is used as part of the first run-time calculations and a correction factor which applies more corrective weight as the time on inverter progresses may be used. During power outages and when power is supplied from the AC power system to the load the maximum available run-time is extrapolated from a table of values representing maximum available run-times at various levels of power being supplied to the load from a fully charged battery. These values are updated after inverter runs to reflect actual system run-times. The maximum run-times are thereby adapted to reflect battery aging and other unique characteristics of the system.

REFERENCES:
patent: 3118137 (1964-01-01), Vincent
patent: 3925772 (1975-12-01), Miller et al.
patent: 4388615 (1983-06-01), Ford et al.
patent: 4433295 (1984-02-01), Zaugg et al.
patent: 4528458 (1985-07-01), Nelson et al.
patent: 4703193 (1987-10-01), Kawabata
patent: 4709318 (1987-11-01), Gephart et al.
patent: 4718020 (1988-01-01), Duich et al.
patent: 4779050 (1988-10-01), Ohnari
patent: 4876513 (1989-10-01), Brilmyer et al.
patent: 5027294 (1991-06-01), Fakruddin et al.
patent: 5057697 (1991-10-01), Hammond et al.
patent: 5117324 (1992-05-01), Johnson, Jr.
patent: 5148043 (1992-09-01), Hirata et al.
patent: 5182518 (1993-11-01), Stich et al.
patent: 5239286 (1993-08-01), Komatsuda
patent: 5250904 (1993-10-01), Salander et al.
patent: 5278509 (1994-01-01), Haynes et al.
patent: 5295078 (1994-03-01), Stich et al.
patent: 5321627 (1994-06-01), Reher
patent: 5325041 (1994-06-01), Briggs
patent: 5339017 (1994-08-01), Yang
patent: 5341084 (1994-08-01), Gotoh et al.
patent: 5352982 (1994-10-01), Nakazawa et al.
patent: 5357203 (1994-10-01), Landau et al.
patent: 5369364 (1994-11-01), Renirie et al.
Microchip, Data Sheet, "TrueGauge.TM. MTA11200 Battery `Fuel Gauge` and Charge Controller IC", 1993.
J. Aylor, et al., "A Battery State-of-Charge Indicator for Electric Wheelchairs", IEEE Trans. on Ind. Elec., vol. 39, No. 5, Oct. 1992, pp. 398-409.
Paper entitled "Explanation of Run Time To Go Calculation Phase 3 Micro-Ferrups (Models MD350-MD2KVA)", no date.
"Tracking internal resistance extends life of UPS batteries", Andre Perra & Joel Aguer, I & CS, May, 1994, pp. 77-79.

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