BUILDING MANAGEMENT SYSTEM WITH ELECTRICAL ENERGY STORAGE OPTIMIZATION BASED ON STATISTICAL ESTIMATES OF IBDR EVENT PROBABILITIES
First Claim
1. A building management system comprising:
- building equipment configured to consume electrical energy and generate thermal energy for use in satisfying a thermal energy load of a building;
thermal energy storage configured to store at least a portion of the thermal energy generated by the building equipment and to discharge the stored thermal energy;
electrical energy storage configured to store electrical energy purchased from a utility and to discharge the stored electrical energy; and
a controller configured to determine, for each time step within a time horizon, an optimal amount of electrical energy to allocate to an incentive-based demand response (IBDR) program based on statistical estimates of IBDR event probabilities.
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Abstract
A central plant that generates and provides resources to a building. The central plant includes an electrical energy storage subplant configured to store electrical energy purchased from a utility and to discharge the stored electrical energy. The central plant includes a plurality of generator subplants that consume one or more input resources. The central plant includes a controller configured to determine, for each time step within a time horizon, an optimal allocation of the input resources and the output resources for each of the subplants in order to optimize a total monetary value of operating the central plant over the time horizon. The total monetary value includes revenue from participating in incentive-based demand response programs as well as costs associated with resource consumption, equipment degradation, and losses in battery capacity.
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Citations
20 Claims
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1. A building management system comprising:
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building equipment configured to consume electrical energy and generate thermal energy for use in satisfying a thermal energy load of a building; thermal energy storage configured to store at least a portion of the thermal energy generated by the building equipment and to discharge the stored thermal energy; electrical energy storage configured to store electrical energy purchased from a utility and to discharge the stored electrical energy; and a controller configured to determine, for each time step within a time horizon, an optimal amount of electrical energy to allocate to an incentive-based demand response (IBDR) program based on statistical estimates of IBDR event probabilities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for optimizing revenue from participating in an incentive-based demand response (IBDR) program, the method comprising:
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storing electrical energy in electrical energy storage, wherein the electrical energy is purchased from a utility; determining, for each time step within a time horizon, an optimal amount of the stored electrical energy to allocate to the IBDR program based on statistical estimates of IBDR event probabilities; discharging electrical energy from the electrical energy storage based on the optimal amount of the stored electrical energy to allocate to the IBDR program; and using the discharged electrical energy to participate in the IBDR program. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A controller comprising:
a processing circuit configured to; generate statistical estimates of incentive-based demand response (IBDR) event probabilities; determine an expected revenue from participating in an IBDR program from statistical estimates of IBDR event probabilities; determine, for each time step within a time horizon, an optimal amount of electrical energy to allocate to the IBDR program; and cause electrical energy storage to discharge electrical energy based on the optimal amount of electrical energy to allocate to the IBDR program. - View Dependent Claims (18, 19, 20)
Specification