Multivariable control of regulation and fast demand response in electrical grids
AssigneePalo Alto Research Center Incorporated
InventorsHaitham A. S. Hindi, Daniel H. Greene, Caitlin L. Laventall
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Abstract
One embodiment of the present invention provides a system for resolving energy imbalance within an electrical grid. During operation, the system receives an imbalance signal and current outputs from a regulation service subsystem and a demand response subsystem. Subsequently, the system generates control signals for controlling future outputs of the regulation service subsystem and the demand response subsystem based on the imbalance signal and the current outputs, and applies the generated control signals to the regulation service subsystem and the demand response subsystem.
Claims19
A method for resolving energy imbalance within an electrical grid, comprising:
- receiving an imbalance signal;
- receiving current outputs from a regulation service subsystem and a demand response subsystem;
- generating future control signals for controlling future outputs of the regulation service subsystem and the demand response subsystem based on the imbalance signal and the current outputs, wherein generating the future control signals involves implementing a model predictive control (MPC) scheme for minimizing a time-varying function subject to a number of constraints, wherein a respective constraint includes a first input hold rate of the regulation service subsystem and a second input hold rate of the demand response subsystem, and wherein the first input hold rate of the regulation service subsystem is less than the second input hold rate of the demand response subsystem;
- and
- applying the generated future control signals to the regulation service subsystem and the demand response subsystem.
A system for resolving energy imbalance within an electrical grid, comprising:
- a regulation service subsystem;
- a demand response subsystem;
- and
- an aggregator configured to:
- receive an imbalance signal;
- receive current outputs from the regulation service subsystem and the demand response subsystem;
- generate future control signals for controlling future outputs of the regulation service subsystem and the demand response subsystem based on the imbalance signal and the current outputs, wherein generating the future control signals involves implementing a model predictive control (MPC) scheme for minimizing a time-varying function subject to a number of constraints, wherein a respective constraint includes a first input hold rate of the regulation service subsystem and a second input hold rate of the demand response subsystem, and wherein the first input hold rate of the regulation service subsystem is less than the second input hold rate of the demand response subsystem;
- and
- apply the generated future control signals to the regulation service subsystem and the demand response subsystem.
A non-transitory computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method, the method comprising:
- receiving an imbalance signal;
- receiving current outputs from a regulation service subsystem and a demand response subsystem;
- generating future control signals for controlling future outputs of the regulation service subsystem and the demand response subsystem based on the imbalance signal and the current outputs, wherein generating the future control signals involves implementing a model predictive control (MPC) scheme for minimizing a time-varying function subject to a number of constraints, wherein a respective constraint includes a first input hold rate of the regulation service subsystem and a second input hold rate of the demand response subsystem, and wherein the first input hold rate of the regulation service subsystem is less than the second input hold rate of the demand response subsystem;
- and
- applying the generated future control signals to the regulation service subsystem and the demand response subsystem.
Dependencies are inferred from the claim text.