MULTI-OBJECTIVE ENERGY MANAGEMENT METHODS FOR MICRO-GRIDS
First Claim
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1. A method to perform multi-objective energy management of micro-grids, comprising:
- providing an advisory layer with a Model Predictive Control (MPC) as a long term scheduler, wherein the advisory layer determines an optimal set point or reference trajectory to reduce cost of energy; and
providing a real-time layer coupled to the advisory layer with a real-time controller that guarantees a real-time balance between supply and demand, subject to the optimal setpoint or trajectory generated by the advisory layer.
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Abstract
Systems and methods are disclosed for multi-objective energy management of micro-grids. A two-layer control method is used. In the first layer which is the advisory layer, a Model Predictive Control (MPC) method is used as a long term scheduler. The result of this layer will be used as optimality constraints in the second layer. In the second layer, a real-time controller guarantees a second-by-second balance between supply and demand subject to the constraints provided by the advisory layer.
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Citations
21 Claims
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1. A method to perform multi-objective energy management of micro-grids, comprising:
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providing an advisory layer with a Model Predictive Control (MPC) as a long term scheduler, wherein the advisory layer determines an optimal set point or reference trajectory to reduce cost of energy; and providing a real-time layer coupled to the advisory layer with a real-time controller that guarantees a real-time balance between supply and demand, subject to the optimal setpoint or trajectory generated by the advisory layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for multi-objective management of a storage device, comprising:
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generating a battery power cost model; generating an energy cost model; controlling a charge or discharge of the battery storage device; and dispatching energy sources from a micro-grid to minimize a marginal cost of operation and maximize a storage unit lifetime over a time horizon. - View Dependent Claims (11, 12, 13, 14)
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15. A multi-objective energy management system, comprising:
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a processor coupled to a micro-grid; a long term scheduler in an advisory layer with a Model Predictive Control (MPC); and a real-time controller that guarantees a second-by-second balance between supply and demand, subject to one or more optimality constraints provided by the advisory layer. - View Dependent Claims (16)
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17. An energy storage system with multi-objective management, comprising:
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an energy storage system; a computer to control the charging of the energy storage system, the computer executing; computer code for generating a battery power cost model and an energy cost model; computer code for controlling a charge or discharge of the battery storage device; computer code for integrating an energy cost minimization and battery life maximization objective functions for optimizing a Model Predictive Control (MPC); and computer code for dispatching energy sources from a micro-grid to minimize a marginal cost of operation and maximize the storage unit lifetime. - View Dependent Claims (18, 19, 20, 21)
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Specification