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Real Power Regulation for the Utility Power Grid via Responsive Loads

Oak Ridge National Laboratory

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Publications:

PDF Document Publication11-G00237_ID1491 (2).pdf (956 KB)


Technology Marketing SummaryA new methodology for dynamically managing an electrical system was invented by researchers at ORNL. Balancing power generation with load demand is critical to ensuring a stable and reliable power supply. This invention provides a new solution to power regulation that can eliminate operational inefficiencies and potentially save the utility industry significant energy generation costs each year.DescriptionBalancing power generation is currently achieved by power generators that modify
their output in response to varying load demand. However, generators must
be responsive to control signals, making it difficult for utilities to accommodate
variable power demands while maintaining a continuous and instantaneous
balance. These inefficiencies can cost utility companies and consumers up to
$2 billion per year. By using controllable loads to regulate and maximize power
generation, this technology offers a faster and more accurate response than
current generators and technologies.

By allowing an operator to send control signals that direct responsive loads to
move incrementally up or down or to a total set amount, the method provides an
efficient system of power regulation or spinning reserve to the power grid. With
these control signals, the power may direct the responsive load to move power
incrementally, or to adjust the load to a specific power level in order to provide
power system balancing.
Benefits•Provides a continuous and instantaneous balance of power generation
•Requires minimal capital outlay
•Saves significant energy generation costs each year
Applications and Industries•Utility companies
•Manufacturers of equipment sold to utilities to maximize the efficiency power generation
More InformationTimothy J. McIntyre, Brendan J. Kirby, Roger A. Kisner, and James W. Van Dyke. Real Power Regulation for the Utility Power Grid via Responsive Loads, U.S. Patent No. US 7,536,240B2, issued May 19, 2009.Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 7,536,240
Patent
7,536,240
Real power regulation for the utility power grid via responsive loads
A system for dynamically managing an electrical power system that determines measures of performance and control criteria for the electric power system, collects at least one automatic generation control (AGC) input parameter to at least one AGC module and at least one automatic load control (ALC) input parameter to at least one ALC module, calculates AGC control signals and loads as resources (LAR) control signals in response to said measures of performance and control criteria, propagates AGC control signals to power generating units in response to control logic in AGC modules, and propagates LAR control signals to at least one LAR in response to control logic in ALC modules.
Oak Ridge National Laboratory 05/19/2009
Issued
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
UT-B ID 200401491DevelopmentAvailable11/21/201110/25/2011

Contact ORNL About This Technology

To: Eugene Cochran<cochraner@ornl.gov>