Sequential Deteministic Optimization Based Control System and Method
AssigneeRockwell Automation Technologies, Inc.
InventorsJan Kolinsky, Jiri Hanzlik, Petr Horacek, Bijan Sayyarrodsari
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Abstract
The embodiments described herein include one embodiment that a control method including executing an infeasible search algorithm during a first portion of a predetermined sample period to search for a feasible control trajectory of a plurality of variables of a controlled process, executing a feasible search algorithm during a second portion of the predetermined sample period to determine the feasible control trajectory if the infeasible search algorithm does not determine a feasible control trajectory, and controlling the controlled process by application of the feasible control trajectory.
Claims20
A control method, comprising:
- executing an infeasible search algorithm during a first portion of a predetermined sample period to search for a feasible control trajectory of a plurality of variables of a controlled process;
- executing a feasible search algorithm during a second portion of the predetermined sample period to determine the feasible control trajectory if the infeasible search algorithm does not determine a feasible control trajectory;
- and
- controlling the controlled process by application of the feasible control trajectory.
A control method, comprising:
- executing an infeasible search algorithm during a first portion of a predetermined sample period to search for a feasible control trajectory of a plurality of variables of a controlled process;
- if the infeasible search algorithm does not determine a feasible control trajectory during the first portion of the sample period, making a current control trajectory of the infeasible search algorithm feasible and stabilizing at the end of the first portion of the sample period;
- executing a feasible search algorithm during a second portion of the sample period to determine the feasible control trajectory based upon the stabilized current control trajectory;
- and
- controlling the controlled process by application of the feasible control trajectory.
A control system, comprising:
- memory circuitry for storing executable code, and processing circuitry for executing the code, the code defining steps that, when executed:
- executes an infeasible search algorithm during a first portion of a predetermined sample period to search for a feasible control trajectory of a plurality of variables of a controlled process;
- if the infeasible search algorithm does not determine a feasible control trajectory during the first portion of the sample period, executes a feasible search algorithm during a second portion of the sample period to determine the feasible control trajectory;
- and
- controls the controlled process by application of the feasible control trajectory.
Dependencies are inferred from the claim text.