Argonne National Laboratory

A Multiobjective Optimization Perspective on the Stability of Economic MPC

TitleA Multiobjective Optimization Perspective on the Stability of Economic MPC
Publication TypeConference Paper
Year of Publication2015
AuthorsZavala, VM
Conference NameADCHEM 2015
Date Published06/2015
Conference LocationWhistler, British Columbia, Canada
Other NumbersANL/MCS-P5283-0115
AbstractWe interpret economic MPC as a control scheme that seeks to trade off economic performance and stability. We use this notion to design an economic MPC controller that exploits the inherent robustness of a stable auxiliary MPC controller to enhance economic performance. Specifically, we add a flexible stabilizing constraint to the economic MPC formulation that preserves stability of the auxiliary controller. We use multiobjective optimization concepts to argue that the dual variable of the stabilizing constraint can be interpreted as a price of stability. We demonstrate that nontrivial gains in economic performance can be achieved without compromising stability.  
PDFhttp://www.mcs.anl.gov/papers/P5283-0115.pdf