Method for supervisory control of building power consumption
AssigneeCarrier Corporation
InventorsStefano Riverso, Marcello Torchio, Craig R. Walker
Life of this patent
Estimating the term…
Abstract
A method for controlling power consumption includes receiving a flexibility request from an electrical utility and discovering energy relevant devices in a building. The energy relevant devices include electrical loads and alternative energy sources. Power requirements are predicted from an electrical utility for the loads, the prediction takes into account available power from the alternative power sources. Power set points are determined for the energy relevant devices based on the prediction. The power set points meet the flexibility request. The energy relevant devices are directed to operate at the power set points. A building energy management system is also disclosed.
Claims12
A method for controlling power consumption, comprising:
- receiving a flexibility request from an electrical utility;
- discovering energy relevant devices in a building, the energy relevant devices including electrical loads and alternative energy sources;
- predicting a power requirement from an electrical utility for the loads, the prediction taking into account available power from the alternative power sources;
- determining power set points for the energy relevant devices based on the predicted power requirement, wherein each power set point represents power consumption for an energy relevant device of the energy relevant devices in the building for a time period;
- optimizing the power set points for the energy relevant devices such that the power set points represent power consumption at or below a new requested power consumption of the flexibility request, wherein the optimizing includes computing a baseline trajectory for one or more key performance indicators for a load selected from the energy relevant devices based on data extracted from the energy relevant devices;
- directing the energy relevant devices to operate at the power set points;
- determining whether the flexibility request is terminated;
- and
- recursively updating the optimized power set points if the flexibility request is not terminated.
A method for controlling power consumption, comprising:
- receiving a flexibility request from an electrical utility;
- computing a baseline trajectory for one or more key performance indicators for an electrical load based on data extracted from the electrical load;
- deriving a reduced order model for the one or more key performance indicators based on the baseline trajectory;
- determining a power set points for the electrical load based on the reduced order model, wherein the power set point represents power consumption for the electrical load for a time period;
- optimizing the power set point such that the power set point represents power consumption at or below a new requested power consumption of the flexibility request;
- directing the load to operate at the power set point;
- determining whether the flexibility request is terminated;
- and
- recursively updating the optimized power set point if the flexibility request is not terminated.
A building energy management system, comprising:
- a computing device configured to receive a flexibility request from an electrical utility, discover energy relevant devices in a building, the energy relevant devices including electrical loads and alternative energy sources, predict a power requirement from an electrical utility for the loads, the prediction taking into account available power from the alternative power sources, determine power set points for the energy relevant devices based on the predicted power requirement, wherein each power set point represents power consumption for an energy relevant device of the energy relevant devices in the building for a time period, optimize the power set points for the energy relevant devices such that the power set points represent power consumption at or below a new requested power consumption of the flexibility request, wherein the optimizing includes computing a baseline trajectory for one or more key performance indicators for a load selected from the energy relevant devices based on data extracted from the energy relevant devices, direct the energy relevant devices to operate at the power set points, determine whether the flexibility request is terminated, and recursively update the optimized power set points if the flexibility request is not terminated.
Dependencies are inferred from the claim text.