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Chapter 4. Explicit/Multi-Parametric MPC Control of PSA Systems 50 40 30 20 Controller response time 5 20 79 10 510 20 30 40 50 60 70 80 90 100 1 0.8 0.6 0.4 0.2 0 MPC tuning factor, R Mean control effort 5 20 79 510 20 30 40 50 60 70 80 90 100 MPC tuning tactor, R Figure 4.15: Comparison of reduced models with different tswitching, against two PSA controller performance indicators for the step disturbance case study performance of the controller derived from a reduced model with tswitching at 5 cycles. These results clearly demonstrates the potential benefits of rigorous system identification procedures for PSA. Note that the controller configuration designed from the reduced model with a switching time of 20 cycles provides the best performance, as it gives the least value of the first performance indicator for a wide range of R while maintaining lower values of the second performance indicator. Furthermore, the best R value for this controller seems to be 30 as it provides the least value of the first per- 93 Mean control effort, sec Number of PSA cyclesPDF Image | Operation and Control of Pressure Swing Adsorption Systems
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