Stabilized deteministic optimization based control system and method

摘要

The embodiments described herein include one embodiment that provides a control method, including determining a first stabilizing feasible control trajectory of a plurality of variables of a controlled process, determining a second stabilizing feasible control trajectory for the plurality of variables for a second time step subsequent to the first time step, determining a first cost of applying the first feasible control trajectory at the second time step, determining a second cost of applying the second feasible control trajectory at the second time step, comparing the first and second costs, selecting the first feasible control trajectory or the second feasible control trajectory based upon the comparison in a predetermined time frame, and controlling the controlled process by application of the selected control trajectory.

主权项

1. A control system, comprising:
a controller that, in operation, controls operation an industrial process; the controller being configured to, in operation, perform the following steps: determining, using a control system, a first feasible control trajectory comprising a first control action to implement in the process during a first future time step and a second control action to implement in the industrial process during a second future time step after the first future time step; determining, using the control system, a second feasible control trajectory comprising the second control action by time shifting the first feasible control trajectory from the first future time step to the second future time step; determining, using the control system, a third feasible control trajectory comprising a third control action to implement in the industrial process during the second future time stamp by performing a first optimization search based at least in part on state of the industrial process and constraints on operation of the industrial process; determining, using the control system, a first cost associated with implementing the second control action during the second future time step based at least in part on an objective function; determining, using the control system, a second cost associated with implementing the third control action during the second future time step based at least in part on the objective function; and controlling, using the control system, the operation of the industrial process by instructing the industrial process to implement the second control action or the third control action based at least in part on the first cost and the second cost.