Building management system with electrical energy storage optimization based on benefits and costs of participating in PBDR and IBDR programs
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 stored or discharged by the electrical energy storage by optimizing a value function comprising expected revenue from participating in an incentive-based demand response (IBDR) program and an expected cost of the electrical energy consumed by the building equipment in order to participate in the IBDR program.
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Accused Products
Abstract
A building management system includes building equipment configured to consume electrical energy and generate thermal energy, 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. The controller is configured to determine, for each time step within a time horizon, an optimal amount of electrical energy stored or discharged by the electrical energy storage by optimizing a value function.
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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 stored or discharged by the electrical energy storage by optimizing a value function comprising expected revenue from participating in an incentive-based demand response (IBDR) program and an expected cost of the electrical energy consumed by the building equipment in order to participate in the IBDR program. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling a building management system, the method comprising:
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using building equipment configured to consume electrical energy and generate thermal energy for use in satisfying a thermal energy load of a building; storing at least a portion of the thermal energy generated by the building equipment in thermal energy storage and discharging the stored thermal energy from the thermal energy storage; storing electrical energy purchased from a utility in electrical energy storage and discharging the stored electrical energy from the electrical energy storage; and determining, for each time step within a time horizon, an optimal amount of electrical energy stored or discharged by the electrical energy storage by optimizing a value function comprising expected revenue from participating in an incentive-based demand response (IBDR) program and an expected cost of the electrical energy consumed by the building equipment in order to participate in the IBDR program. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A controller comprising:
a processing circuit configured to; estimate an expected revenue from participating in an incentive based demand response (IBDR) program; estimate an expected cost of participating in the IBDR program; weigh the expected revenue against the expected cost to determine whether to participate in the IBDR program; generate optimal control signals for electrical energy storage based on a result of the weighing; operating the electrical energy storage using the optimal control signals. - View Dependent Claims (20)
Specification