A new framework for optimizing process economic performance

In this work, we embed a coordinator to the conventional framework, where real-time optimization (RTO) is in conjunction with model predictive control (MPC) for industrial practice. The coordinator makes a better tradeoff between economy and feasibility. The objective function with both economic term and feasible requirement is employed, and the coordinator adjusts the weight of economic term gradually to find a new feasible point. The new one is more than a feasible target, and it can explore extra profit as well. It works well especially when the economic measurement is not convex. A numerical example illustrates the advantages of our framework.