Controller Design and Stability Analysis for Some Linear Systems Using Pulse-Width-Modulation

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dc.contributor.advisorQian, Chunjiang
dc.contributor.authorOrtega, Eric Joseph
dc.contributor.committeeMemberJin, Yufang
dc.contributor.committeeMemberTaha, Ahmad
dc.creator.orcidhttps://orcid.org/0000-0001-9685-3574
dc.date.accessioned2024-02-12T19:31:05Z
dc.date.available2024-02-12T19:31:05Z
dc.date.issued2019
dc.descriptionThis item is available only to currently enrolled UTSA students, faculty or staff. To download, navigate to Log In in the top right-hand corner of this screen, then select Log in with my UTSA ID.
dc.description.abstractDigital control is a branch of control theory that uses a computer processor to control and drive a continuous-time system so that it operates in a desirable way over time. Accuracy, flexibility, performance, and low cost have led to an increased usage of digital controllers. Digitally controlled systems require digital-to-analog (D/A) and analog-to-digital (A/D) converters to translate signals between the plant and digital controller. D/A conversion is often accomplished using Zero-Order-Hold (ZOH), but another method of D/A conversion can be performed using Pulse-Width-Modulation (PWM). PWM based control systems have gained much attention due to their versatility and usage in many practical applications ranging from household appliances to jet engines. Stability analysis of a control system is a highly studied topic, and PWM based control systems present challenges due to the nonlinearities introduced by the discontinuous PWM signal. This thesis is focused on presenting a new Lyapunov stability analysis for some systems under PWM control. Different from the existing results, the proposed procedure is developed based on Zero-Order-Hold (ZOH), yielding a sufficient condition for the switching period of the PWM signal. The effectiveness of the proposed result will be demonstrated in application to a group of linear systems with simulations results.
dc.description.departmentElectrical and Computer Engineering
dc.format.extent53 pages
dc.format.mimetypeapplication/pdf
dc.identifier.isbn9781392182147
dc.identifier.urihttps://hdl.handle.net/20.500.12588/4980
dc.languageen
dc.subjectControls
dc.subjectLyapunov
dc.subjectPulse-width-modulation
dc.subjectPWM
dc.subjectStability
dc.subjectZero-order-hold
dc.subject.classificationElectrical engineering
dc.titleController Design and Stability Analysis for Some Linear Systems Using Pulse-Width-Modulation
dc.typeThesis
dc.type.dcmiText
dcterms.accessRightspq_closed
thesis.degree.departmentElectrical and Computer Engineering
thesis.degree.grantorUniversity of Texas at San Antonio
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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