Show simple item record

dc.contributor.authorDiao, Lilien
dc.date2009-12-22 15:47:05.884
dc.date.accessioned2009-12-23T16:02:04Z
dc.date.available2009-12-23T16:02:04Z
dc.date.issued2009-12-23T16:02:04Z
dc.identifier.urihttp://hdl.handle.net/1974/5370
dc.descriptionThesis (Ph.D, Chemical Engineering) -- Queen's University, 2009-12-22 15:47:05.884en
dc.description.abstractOutput feedback control design techniques are required in practice due to the limited number of sensors/measurements available for feedback. This thesis focuses on output feedback controller design techniques for nonlinear systems subject to different system restrictions. The problem of controlling the heart dynamics in a real time manner is formulated as an adaptive learning output-tracking problem. For a class of nonlinear dynamic systems with unknown nonlinearities and non-affine control input , a Lyapunov-based technique is used to develop a control law. An adaptive learning algorithm is exploited that guarantees the stability of the closed-loop system and convergence of the output tracking error to an adjustable neighborhood of the origin. In addition, good approximation of the unknown nonlinearities is also achieved by incorporating a per- sistent exciting signal in the parameter update law. The effectiveness of the proposed method is demonstrated by an application to a cardiac conduction system modelled by two coupled driven oscillators. An output feedback design technique is developed to achieve semi-global practical stabilization for a class of non-minimum phase nonlinear systems, subject to param- eter uncertainties. This work provides a constructive controller design method for an auxiliary system, whose existence is crucial, but is only assumed in (Isidori, 2000). The control design technique is used to regulate the benchmark van de Vusse reactor. Simulation results demonstrate satisfactory controller performance. The output feedback control design for a class of non-minimum phase nonlinear systems with unknown nonlinearities is studied. The proposed approach is able to combine the two previous design methods and provide a stabilizing output feedback control law. The performance of the proposed method is demonstrated by simulation results.en
dc.format.extent1280781 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoengen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectAdaptiveen
dc.subjectNon-minimum Phaseen
dc.titleAdaptive Output Feedback Stabilization of Nonlinear Systemsen
dc.typethesisen
dc.description.degreeDoctor of Philosophyen
dc.contributor.supervisorGuay, Martinen
dc.contributor.departmentChemical Engineeringen
dc.degree.grantorQueen's University at Kingstonen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record