Paper Info
Title
Gather-and-broadcast frequency control in power systems.
Abstract
We propose a novel frequency control approach in between centralized and distributed architectures, that is a continuous-time feedback control version of the dual decomposition optimization method. Specifically, a convex combination of the frequency measurements is centrally aggregated, followed by an integral control and a broadcast signal, which is then optimally allocated at local generation units. We show that our gather-and-broadcast control architecture comprises many previously proposed strategies as special cases. We prove local asymptotic stability of the closed-loop equilibria of the considered power system model, which is a nonlinear differential–algebraic system that includes traditional generators, frequency-responsive devices, as well as passive loads, where the sources are already equipped with primary droop control. Our feedback control is designed such that the closed-loop equilibria of the power system solve the optimal economic dispatch problem.
Year
DOI
Venue
2017
10.1016/j.automatica.2017.02.003
Automatica
Keywords
Field
DocType
Distributed control,Power systems,Frequency control
Broadcasting,Economic dispatch,Control theory,Networked control system,Convex combination,Electric power system,Control engineering,Automatic frequency control,Exponential stability,Mathematics,Voltage droop
Journal
Volume
Issue
ISSN
79
79
0005-1098
Citations 
PageRank 
References 
18
0.87
17
Authors
2
Name
Order
Citations
PageRank
Florian Dörfler1109176.14
Sergio Grammatico217325.63