Title :
Distributed control of linear parameter-varying decomposable systems
Author :
Hoffmann, Christian ; Eichler, A. ; Werner, Herbert
Author_Institution :
Inst. of Control Syst., Hamburg Univ. of Technol., Hamburg, Germany
Abstract :
This work presents a linear parameter-varying (LPV) approach to distributed control that extends the notion of decomposable systems to decomposable LPV systems. We provide results for the synthesis of distributed output-feedback LPV controllers for heterogeneously scheduled distributed LPV systems in linear fractional (LFT) representation. This result includes multi-agent systems (MAS) as a special case and therefore allows gain-scheduled control when each agent´s LPV dynamics is dependent on individual parameter values. This in turn, makes it possbile to consider nonlinear agent models if they can be represented as quasi-LPV models. Furthermore, we propose robust stability and performance conditions for switching interaction topologies. We also provide a convex analysis condition with decomposable parameter-dependent Lyapunov functions for reduced conservatism.
Keywords :
Lyapunov methods; control system synthesis; convex programming; distributed control; feedback; linear systems; multi-robot systems; nonlinear control systems; robust control; topology; LFT representation; LPV dynamics; MAS; convex analysis condition; decomposable LPV systems; decomposable parameter-dependent Lyapunov functions; distributed output-feedback LPV controller synthesis; gain-scheduled control; heterogeneously scheduled distributed LPV systems; linear fractional representation; linear parameter-varying decomposable systems; multiagent systems; nonlinear agent models; parameter values; quasiLPV models; reduced conservatism; robust stability; switching interaction topologies; Decentralized control; Linear matrix inequalities; Lyapunov methods; Matrix decomposition; Switches; Topology; Vectors;
Conference_Titel :
American Control Conference (ACC), 2013
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4799-0177-7
DOI :
10.1109/ACC.2013.6580190