Communication-free decentralized control framework for unit commitment in microgrids
AssigneeSiemens Aktiengesellschaft
InventorsUlrich Muenz, Xiaofan Wu, Mohit Sinha, Joachim Bamberger
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Abstract
Systems, methods, and computer-readable media are described for addressing the unit commitment problem in a power grid by providing a communication-free control framework according to which each power generating unit in the power grid determines its own operating schedule for turning on or off based solely on local measurements.
Claims20
A method for decentralized unit commitment in a power system comprising a plurality of power generating units, the method comprising:
- determining a load requirement on the power system;
- and
- executing an operation schedule for power generation by the plurality of power generating units to meet the load requirement, wherein executing the operation schedule comprises executing, by the plurality of power generating units, a collection of subroutines that control a timing of active and inactive states of each of the plurality of power generating units based solely on local measurements made in the absence of wired and wireless communication between any of the plurality of power generating units;
- wherein executing the operation schedule comprises executing one or more subroutines of the collection of subroutines to transition another power generating unit of the plurality of power generating units from the inactive state to the active state, and wherein executing the one or more subroutines comprises:
- determining, by the first power generating unit, that a condition is met for requiring power generation support from the another power generating unit;
- performing, by the first power generating unit, a change on the power system that is detected and measured by each of the plurality of power generating units;
- determining, by a second power generating unit of the plurality of power generating units and based at least in part on the detected change on the power system and a transition rule, that the second power generating unit should transition to the active state;
- and
- transitioning, by the second power generating unit, to the active state.
A power system configured to implement a decentralized unit commitment framework, the power system comprising a plurality of power generating units, wherein a plurality of local controllers respectively corresponding to the plurality of power generating units is configured to:
- determine a load requirement on the power system;
- and
- execute an operation schedule for power generation by the plurality of power generating units to meet the load requirement, wherein executing the operation schedule comprises executing, by the plurality of local controllers, a collection of subroutines that control a timing of active and inactive states of each of the plurality of power generating units based solely on local measurements made in the absence of wired and wireless communication between any of the plurality of power generating units;
- wherein executing the operation schedule comprises executing one or more subroutines of the collection of subroutines to transition another power generating unit of the plurality of power generating units from the inactive state to the active state, and wherein executing the one or more subroutines comprises:
- determining, by a first local controller of the first power generating unit, that a condition is met for requiring power generation support from the another power generating unit;
- performing, by the first local controller, a change on the power system that is detected and measured by each of the plurality of power generating units:
- determining, by a second local controller of a second power generating unit of the plurality of power generating units and based at least in part on the detected change on the power system and a transition rule, that the second power generating unit should transition to the active state;
- and
- transitioning, by the second local controller, the second power generating unit to the active state.
Dependencies are inferred from the claim text.