Economic Control Structure Selection for Two-Layered Real-Time Optimization Systems
- Bottari, Agustin
- Zumoffen, David Alejandro Ramon
- Marchetti, Alejandro Gabriel
DOIAbstract
In industrial chemical plants, the selection of controlled variables, manipulated variables, and setpoint values directly impacts the economics of plant operation. The economic operation of a controlled plant can be improved using measurements to optimize the setpoint values and/or change the control structure online. These corrective actions are typically implemented by a supervisory setpoint control layer, such as a real-time optimization system. In a recent work, the authors studied the steady-state back-off approach for control structure selection that selects the optimal control structure and setpoint values by minimizing the average economic cost while guaranteeing feasibility in the presence of disturbances. In the present paper, we ...
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