Page 233 - Distributed model predictive control for plant-wide systems
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Cooperative Distributed Predictive Control with Constraints            207


                      0.5
                   Δu 1  0
                     –0.5
                        0      10    20     30     40    50     60     70    80
                                                   Time (s)
                      0.5
                   Δu 2  0
                     –0.5
                        0      10    20     30     40    50     60     70    80
                                                   Time (s)

                      0.5
                   Δu 3  0
                     –0.5
                        0      10    20     30     40    50     60     70    80
                                                   Time (s)
                       1
                      0.5
                   Δu 4  0
                     –0.5
                        0      10    20     30     40    50     60     70    80
                                                   Time (s)
                      0.5
                   Δu 5  0
                     –0.5
                       −1
                        0      10    20     30     40    50     60     70    80
                                                   Time (s)

                      0.5
                   Δu 6  0
                     –0.5
                        0      10    20     30     40    50     60     70    80
                                                   Time (s)
                       1
                   Δu 7  0

                       –1
                        0      10    20     30     40    50     60     70    80
                                                   Time (s)
                              Difference between C−DMPC and Centralized MPC
                              Difference between LCO−DMPC and Centralized MPC

             Figure 9.6 The difference between the input of each subsystem produced by the LCO-DMPC and the
             input of each subsystem calculated by the centralized MPC, and between the input of each subsystem
             produced by the C-DMPC and the input of each subsystem calculated by the centralized MPC
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