Control of Networked Systems by Clustering: The Degree of Freedom Concept ⁎This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme grant agreement OCAL, No. 787845. Issue 2 (2020)

• Record Type: Journal Article
• Authors: Martinelli, Andrea; Lygeros, John
• Is Part Of: IFAC-PapersOnLine. Volume 53:Issue 2(2020)
• Page Start: 3298
• Page End: 3303
• Publication Date: 2020
• Subjects: Networked systems -- Graph clustering -- Distributed optimization of large scale systems -- Disturbance propagation -- DC microgrids -- Intelligent control of power systems; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2020.12.1491
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: We address the problem of local flux redistribution in networked systems. The aim is to detect a suitable cluster which is able to locally adsorb a disturbance by means of an appropriate redistribution of control load among its nodes, such that no external node is affected. Traditional clustering measures are not suitable for our purpose, since they do not explicitly take into account the structural conditions for disturbance containment. We propose a new measure based on the concept of degree of freedom for a cluster, and we introduce a heuristic procedure to quickly select a set of nodes according to this measure. Finally, we show an application of the method in the context of DC microgrids voltage control.