Integration of available CAPE tools for Real Time Optimisation systems

摘要

This paper addresses the communication of present CAPE tools as the way for achieving integrated systems supporting Real Time Optimisation. The work primarily focuses on integration of such tools in order to facilitate the implementation of RTO systems. Scheme and architecture proposed are validated with two case studies and the arising difficulties are discussed. First case study is based in a typical plant scheme where the recycle flow constitutes the decision variable and the plant profit the objective function. The economic model of the system is implemented on a spreadsheet while a commercial process simulator (HYSYS.Plant) provides the simulation of the physical behaviour of the plant. The more complex second case includes several decision variables. Therefore, a solver function of a mathematics simulator was used (Matlab). The communication between all these tools is established by means of COM (Component Object Model) and DDE (Dynamic Data Exchange) technologies, thus constituting a hybrid distributed model of the system. Finally, computational advantages of such an aggregated model are discussed as well as the improvement possibility of the optimisation procedures performance.