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dc.contributor.authorAbidi, K.en_US
dc.contributor.authorYildiz, Y.en_US
dc.date.accessioned2016-02-08T12:04:13Z
dc.date.available2016-02-08T12:04:13Z
dc.date.issued2015en_US
dc.identifier.issn14746670
dc.identifier.urihttp://hdl.handle.net/11693/27896
dc.description.abstractIn this paper, we present the discrete version of the Adaptive Posicast Controller (APC) that deals with parametric uncertainties in systems with input time-delays. The continuous-time APC is based on the Smith Predictor and Finite Spectrum Assignment with time-varying parameters adjusted online. Although the continuous-time APC showed dramatic performance improvements in experimental studies with internal combustion engines, the full benefits could not be realized since the finite integral term in the control law had to be approximated in computer implementation. It is shown in the literature that integral approximation in time-delay compensating controllers degrades the performance if care is not taken. In this work, we present a development of the APC in the discrete-time domain, eliminating the need for approximation. In essence, this paper attempts to present a unified development of the discrete-time APC for systems that are linear with known/unknown input time-delays. Performances of the continuous-time and discrete-time APC, as well as conventional Model Reference Adaptive Controller (MRAC) for linear systems with known time-delay are compared in simulation studies. It is shown that discrete-time APC outperforms its continuoustime counterpart and MRAC. Further simulations studies are also presented to show the performance of the design for systems with uncertain time-delay. © 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.en_US
dc.language.isoEnglishen_US
dc.source.titleIFAC Proceedings Volumes (IFAC-PapersOnline)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.ifacol.2015.09.415en_US
dc.subjectAdaptive Controlen_US
dc.subjectDiscrete time systemsen_US
dc.subjectLyapunov stabilityen_US
dc.subjectRobust controlen_US
dc.subjectTime-delay systemsen_US
dc.subjectAdaptive control systemsen_US
dc.subjectContinuous time systemsen_US
dc.subjectControllersen_US
dc.subjectDelay control systemsen_US
dc.subjectDigital control systemsen_US
dc.subjectInternal combustion enginesen_US
dc.subjectLinear systemsen_US
dc.subjectModel reference adaptive controlen_US
dc.subjectRobust controlen_US
dc.subjectRobustness (control systems)en_US
dc.subjectTelecommunication networksen_US
dc.subjectTime delayen_US
dc.subjectAdaptive Controlen_US
dc.subjectComputer implementationsen_US
dc.subjectDiscrete - time systemsen_US
dc.subjectFinite spectrum assignmenten_US
dc.subjectLyapunov stabilityen_US
dc.subjectParametric uncertaintiesen_US
dc.subjectTime varying parameteren_US
dc.subjectTime-delay systemsen_US
dc.subjectDiscrete time control systemsen_US
dc.titleOn the discrete adaptive posicast controlleren_US
dc.typeConference Paperen_US
dc.departmentDepartment of Electrical and Electronics Engineering
dc.citation.spage422en_US
dc.citation.epage427en_US
dc.citation.volumeNumber48en_US
dc.citation.issueNumber12en_US
dc.identifier.doi10.1016/j.ifacol.2015.09.415en_US
dc.publisherIFAC Secretariaten_US


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