Method and apparatus for adaptive demand limiting electric consumption through load shedding
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United States of America Patent
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-
May 9, 1995
Issued Date -
N/A
app pub date -
Feb 23, 1994
filing date -
Jul 5, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A load shedding apparatus for limiting peak electrical demand in an electrical system to a target level through load shedding. The apparatus employs predictive control logic to estimate the amount of energy that needs to be shed in a predetermined future period. Preferably, the load shedding apparatus forecasts the amount of energy require in a predetermined future period by analyzing current energy consumption, current load shedding, and error factors indicative of the random energy demand characteristics of the electrical system. The apparatus estimates the amount of energy that needs to be shed in view of the forecast of the amount of energy required in the predetermined future period. The apparatus selects non-essential loads for shedding until the estimated amount of energy that needs to be shed is reached. The apparatus transmits shed control signals to selected devices within the electrical system to disconnect the selected devices.
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