- Conference Paper
This work investigates performance and optimal distributed controller design of power networks with time-delay (latency). Performance of the network is measured by the square of the system’s H2-norm. The focus of this paper is on allocating weights to interconnections in order to enhance the performance of the time-delay network and these weights serve as feedback gains in the system. We consider a stylized power system model that inspires our analysis. First, we provide an exact expression for the time-delay margin. Then, we find the performance formula as a function of the spectrum of the Laplacian matrix of the coupling graph, time-delay, and the distributed controller gains. Moreover, we formulate the weight allocation problem as an optimization problem and compare the cases where time-delay is considered and time-delay is neglected in the design process. Lastly, we show that in the presence of time-delay increasing connectivity does not necessarily improve the performance. Show more
Book title7th IFAC Workshop on Distributed Estimation and Control in Networked Systems, NECSYS 2018. Proceedings
Journal / seriesIFAC-PapersOnLine
Pages / Article No.
SubjectConsensus Networks; Topology Design; Time-Delay Systems; Network Performance Measures; Wide-Area Control
Organisational unit09478 - Dörfler, Florian / Dörfler, Florian
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