Simultaneous design and control optimisation under uncertainty

This paper demonstrates how the design and control of processes described b y large-scale, complex, mixed-integer dynamic models can be simultaneously optimised in the face of time-varying disturbances and parametric uncertain ties. A rigorously modelled distillation example is used for this purpose, where the number of trays, feed location, column diameter, surface areas of the heat exchangers and tuning parameters of the controllers are selected in order to minimise the total annualised cost of the system, while satisfy ing a large number of feasibility constraints. (C) 2000 Elsevier Science Lt d. All rights reserved.