Steady-State Real-time Optimization using Transient Measurements
Journal article, Peer reviewed
Accepted version
Permanent lenke
http://hdl.handle.net/11250/2593276Utgivelsesdato
2018Metadata
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Originalversjon
Computers and Chemical Engineering. 2018, 115 34-45. 10.1016/j.compchemeng.2018.03.021Sammendrag
Real-time optimization (RTO) is an established technology, where the process economics are optimized using rigourous steady-state models. However, a fundamental limiting factor of current static RTO implementation is the steady-state wait time. We propose a “hybrid” approach where the model adaptation is done using dynamic models and transient measurements and the optimization is performed using static models. Using an oil production network optimization as case study, we show that the Hybrid RTO can provide similar performance to dynamic optimization in terms of convergence rate to the optimal point, at computation times similar to static RTO. The paper also provides some discussions on static versus dynamic optimization problem formulations.