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dc.contributor.authorMascioli, Matthew
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date2014-05-05 15:25:47.342en
dc.date.accessioned2014-05-06T13:44:37Z
dc.date.issued2014-05-06
dc.identifier.urihttp://hdl.handle.net/1974/12177
dc.descriptionThesis (Master, Electrical & Computer Engineering) -- Queen's University, 2014-05-05 15:25:47.342en
dc.description.abstractThis thesis presents adaptive control techniques to improve the stability and performance of grid-tied single-phase inverter systems. There are three main control systems involved in the conversion of DC to AC power: a synchronizer, a current-controller, and a DC-bus controller. The focus of this thesis is to create a control system which responds to the changing operating conditions. In order to adapt to changing operating conditions, estimations of the variables which influence stability and performance are necessary. A synchronization system is proposed, which delivers very accurate estimation of the grid frequency and voltage amplitude across all operating conditions. The synchronization system also provides an accurate and normalized set of orthogonal vectors for the AC output current reference phase. An adaptive parameter estimation technique is proposed to passively estimate the LCL-filter parameters and DC input current. Using the parameter estimations of the output filter, an adaptive state-feedback system is proposed. Next, a frequency-adaptive current controller is proposed, which dynamically tunes to the frequency provided by the synchronizer. Finally, the DC-bus controller is enhanced with the grid-voltage estimate and DC current estimator. The proposed techniques are verified for performance and stability though simulation and experimental results.en_US
dc.languageenen
dc.language.isoenen_US
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.subjectElectrical Engineeringen_US
dc.subjectPower Electronicsen_US
dc.titleSystem Identification and Adaptive Control for Grid-Connected Single-Phase AC Invertersen_US
dc.typethesisen_US
dc.description.restricted-thesisThe patents are being applied for based on the material contained in this thesis.en
dc.description.degreeMasteren
dc.contributor.supervisorJain, Praveen K.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.embargo.terms1825en
dc.embargo.liftdate2019-05-05


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