Staggering and feathering of demand response and energy supply change in a managed electrical system
View Patent ↗One embodiment of the present invention provides an energy-management system for managing energy within a predominantly closed power system. During operation, the system obtains one or more control actions that control energy transitions of a plurality of components, receives transitional characteristics associated with the components, and schedules the energy transitions by generating a set of offsets. A respective offset results in a delay of at least one energy transition.
1. A method for managing energy within a predominantly closed power system, comprising:
obtaining one or more control actions that control energy transitions of a plurality of components;
receiving transitional characteristics associated with the energy transitions;
identifying, based on the transitional characteristics of the energy transition, one or more additive energy transitions and one or more subtractive energy transitions; and
scheduling the energy transitions by generating a set of offsets, wherein a respective offset involves delaying at least one energy transition, and wherein scheduling the energy transitions involves one of:
scheduling all additive energy transitions ahead of all subtractive energy transitions; and
staggering a number of subtractive energy transitions between consecutive additive energy transitions.
2. The method of claim 1 , wherein the transitional characteristics associated with a transition include at least one of:
amount of power change;
a duration time constant;
an accuracy figure; and
a feathering capability.
3. The method of claim 1 , wherein obtaining the control actions involves performing an optimization based on performance models associated with the components.
4. The method of claim 1 , wherein the control actions include at least one of:
demand response of a load;
activation of a source; and
energy withdrawal from a storage.
5. The method of claim 1 , further comprising feathering an energy transition.
6. An energy-management system for managing energy within a predominantly closed power system, comprising:
a control-action obtaining mechanism configured to obtain one or more control actions that control energy transitions of a plurality of components;
a receiving mechanism configured to receive transitional characteristics associated with the energy transitions;
an identification mechanism configured to identify, based on the transitional characteristics of the energy transition, one or more additive energy transitions and one or more subtractive energy transitions; and
a scheduling mechanism configured to schedule the energy transitions by generating a set of offsets, wherein a respective offset involves delaying at least one energy transition, and wherein while scheduling the energy transitions, the scheduling mechanism is configured to perform one of:
scheduling all additive energy transitions ahead of all subtractive energy transitions; and
staggering a number of subtractive energy transitions between consecutive additive energy transitions.
7. The energy-management system of claim 6 , wherein the transitional characteristics associated with a transition include at least one of:
amount of power change;
a duration time constant;
an accuracy figure; and
a feathering capability.
8. The energy-management system of claim 6 , wherein while obtaining the control actions, the control-action obtaining mechanism is configured to perform an optimization based on performance models associated with the components.
9. The energy-management system of claim 6 , wherein the control actions include at least one of:
demand response of a load;
activation of a source; and
energy withdrawal from a storage.
10. The energy-management system of claim 6 , further comprising a feathering mechanism configured to feather an energy transition.
11. A non-transitory, computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method for managing energy within a predominantly closed power system, the method comprising:
obtaining one or more control actions that control energy transitions of a plurality of components;
receiving transitional characteristics associated with the components;
identifying, based on the transitional characteristics of the energy transition, one or more additive energy transitions and one or subtractive energy transitions; and
scheduling the energy transitions by generating a set of offsets, wherein a respective offset involves delaying at least one energy transition, and wherein scheduling the energy transitions involves one of:
scheduling all additive energy transitions ahead of all subtractive energy transitions; and
staggering a number of subtractive energy transitions between consecutive additive energy transitions.
12. The computer-readable storage medium of claim 11 , wherein the transitional characteristics associated with a transition include at least one of: amount of power change;
a duration time constant;
an accuracy figure; and
a feathering capability.
13. The computer-readable storage medium of claim 11 , wherein obtaining the control actions involves performing an optimization based on performance models associated with the components.
14. The computer-readable storage medium of claim 11 , wherein the control actions include at least one of:
demand response of a load;
activation of a source; and
energy withdrawal from a storage.
15. The computer-readable storage medium of claim 11 , wherein the method further comprises feathering an energy transition.