A distributed feasible-side convergent modifier-adaptation scheme for interconnected systems, with application to gas-compressor stations

作者：Milosavljevic Predrag; Schneider Rene; Cortinovis Andrea; Faulwasser Timm; Bonvin Dominique^*

来源：Computers & Chemical Engineering, 2018, 115: 474-486.

DOI：10.1016/j.compchemeng.2018.05.006

• Real-time optimization
• Interconnected systems
• Modifier adaptation
• Model uncertainty
• Proximal-gradient algorithm
• Gas compressors

Recently, a feasible-side globally convergent modifier-adaptation scheme has been proposed for the real-time optimization of uncertain systems. We show that this scheme is related to proximal-gradient algorithms in numerical optimization and we exploit this relationship to analyze its convergence in the case of inexact gradient information. We also make use of this relationship to propose a novel distributed modifier-adaptation algorithm for interconnected systems that uses a coordinator and knowledge of the interconnection topology. We then prove its feasible-side convergence to plant optimality. In addition, our distributed algorithm ensures confidentiality of local models and data. We finally demonstrate the applicability and effectiveness of this algorithm on a load-sharing optimization case study for serially connected gas compressors.

• 出版日期2018-7-12