Price-Driven Coordination of Distributed MPC Controllers for Constrained Dynamic Systems

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• 作者：Natalia I. Marcos ; J. Fraser Forbes ; Martin Guay
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2013
• 出版时间：December 11, 2013
• 年：2013
• 卷：52
• 期：49
• 页码：17451-17464
• 全文大小：528K
• 年卷期：v.52,no.49(December 11, 2013)
• ISSN：1520-5045

文摘

In this paper, a coordinated-distributed model predictive control (CDMPC) scheme is presented for discrete-time linear process systems. The coordinated-distributed control scheme proposed in this work benefits from using local model predictive controllers that can be coordinated to achieve the plantwide (centralized) optimal performance. The 鈥減rice-driven鈥?method is used to coordinate the local controllers. Newton鈥檚 method, along with a sensitivity analysis technique, is used to update the price in the price-driven method. Convergence of the performance obtained with the CDMPC controllers to the plantwide optimal performance is shown. Simulation examples, including a forced-circulation evaporator process, are used to illustrate the effectiveness of the proposed coordinated-distributed control scheme.