Extended control plan and implementation in control systems and methods for economical optimization of an electrical system
AssigneeEnel X North America, Inc.
InventorsJohn Michael Fife, Rebecca G. Wolkoff
Life of this patent
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Abstract
The present disclosure is directed to systems and methods for economically optimal control of an electrical system. A two-stage controller includes an optimizer and a high speed controller to effectuate a change to one or more components of the electrical system. The high speed controller receives a set of control parameters for an upcoming extended time period. The control parameters include a plurality of bounds for an adjusted net power of the electrical system. The high speed controller sets an energy storage system command control variable (ESS command) based on a state of adjusted net power of the electrical system and the set of control parameters.
Claims19
A controller to control an electrical system, the controller comprising:
- an economic optimizer to generate an extended control plan including a plurality of sets of control parameters to be applied for an upcoming extended time period, the plurality of sets of control parameters corresponding to a plurality of segments of the upcoming extended time period, each of the plurality of sets of control parameters specifying a nominal energy storage system power (Rim), an upper bound on adjusted demand (UB), and a current upper demand (UB0) during a corresponding one of the plurality of segments;
- and
- a high speed controller in communication with the economic optimizer, the high speed controller to:
- receive the plurality of sets of control parameters from the economic optimizer;
- determine a current set of control parameters from the plurality of sets of control parameters corresponding to a current segment of the upcoming extended time period, the current set of control parameters including the Pnom, the UB, and the UB0 for the current segment;
- repeatedly compare a sum of adjusted net power and the Pnom to the UB0 and the UB;
- set an energy storage system command control variable (ESS command) based on the comparison, wherein the ESS command is set based on whether the sum is below the UB0, between the UB0 and the UB, or above the UB;
- and
- provide the ESS command to the electrical system to control operation of an ESS.
A method of controlling operation of an electrical system, the method comprising:
- generating an extended control plan including a plurality of sets of control parameters to be applied for an upcoming extended time period, the plurality of sets of control parameters corresponding to a plurality of segments of the upcoming extended time period, each of the plurality of sets of control parameters specifying a nominal energy storage system power (Pnom), an upper bound on adjusted demand (UB), and a current upper demand (UB0) during a corresponding one of the plurality of segments
- determining a current set of control parameters from the plurality of sets of control parameters corresponding to a current segment of the upcoming extended time period, the current set of control parameters including the Pnom, the UB, and the UB0 for the current segment;
- repeatedly comparing a sum of adjusted net power and the Pnom to the UB0 and the UB;
- setting an energy storage system command control variable (ESS command) based on the comparison, wherein the ESS command is set based on whether the sum is below the UB0, between the UB0 and the UB, or above the UB;
- and
- providing the ESS command to the electrical system to control operation of an ESS.
A system to control an electrical system, the controller comprising:
- a first computing device to generate an extended control plan including a set of control parameters for a segment of an upcoming extended time period, the set of control parameters specifying a nominal energy storage system power (Pnom), an upper bound on adjusted demand (UB), and a current upper demand (UB0) the segment of the upcoming extended time period;
- and
- a second computing device in communication with the first computing device, the second computing device to:
- receive the set of control parameters for the segment of the upcoming extended time period including the Pnom, the UB, and the UB0;
- the second computing device to repeatedly:
- compare an adjusted net power to the UB0 and the UB;
- and
- set an energy storage system command control variable (ESS command) based on the comparison of the adjusted net power to the UB0 and the UB;
- and
- provide the ESS command to the electrical system, via the communication interface, to effectuate a change to one or more components of the electrical system.
Dependencies are inferred from the claim text.