On the discrete adaptive posicast controller

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dc.citation.epage427en_US
dc.citation.issueNumber12en_US
dc.citation.spage422en_US
dc.citation.volumeNumber48en_US
dc.contributor.authorAbidi, K.en_US
dc.contributor.authorYıldız, Yıldırayen_US
dc.coverage.spatialAnn Arbor, Michigan, USAen_US
dc.date.accessioned2016-02-08T12:04:13Zen_US
dc.date.available2016-02-08T12:04:13Zen_US
dc.date.issued2015en_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.descriptionDate of Conference: 28–30 June 2015en_US
dc.descriptionConference Name: 12th IFAC Workshop on Time Delay Systems, TDS 2015en_US
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.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T12:04:13Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2015en
dc.identifier.doi10.1016/j.ifacol.2015.09.415en_US
dc.identifier.issn1474-6670en_US
dc.identifier.urihttp://hdl.handle.net/11693/27896en_US
dc.language.isoEnglishen_US
dc.publisherIFACen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.ifacol.2015.09.415en_US
dc.source.titleProceedings of the 12th IFAC Workshop on Time Delay Systems, TDS 2015en_US
dc.subjectAdaptive controlen_US
dc.subjectDiscrete time systemsen_US
dc.subjectLyapunov stabilityen_US
dc.subjectRobust controlen_US
dc.subjectTime-delay systemsen_US
dc.subjectTelecommunication networksen_US
dc.titleOn the discrete adaptive posicast controlleren_US
dc.typeConference Paperen_US

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