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dc.contributor.advisorSawan, M. Edwin
dc.contributor.authorAravinthan, Abhiramy
dc.date.accessioned2013-02-20T20:19:39Z
dc.date.available2013-02-20T20:19:39Z
dc.date.copyright2012en
dc.date.issued2012-07
dc.identifier.othert12051
dc.identifier.urihttp://hdl.handle.net/10057/5523
dc.descriptionThesis (M.S.)--Wichita State University, College of Engineering, Dept. of Electrical Engineering and Computer Scienceen_US
dc.description.abstractDoubly fed induction generators (DFIG) are widely used in wind power generation because of their ability to be operated at varying rotational speeds while producing power output at a constant frequency. Electrical dynamics of a DFIG is modeled using field oriented control and represented as fourth order system. This fourth order dynamics exposes a two-time scale behavior. Using singular perturbation techniques the time scales can be separated as slow and fast subsystems. Feedback control schemes can be designed and the closed-loop stability of each model can be compared. In this work, a linear quadratic feedback controller is designed for the DFIG electrical dynamics using exact, reduced order and composite models. The performances of the closed loop models are compared based on the system cost. The robustness and reliability of the control schemes are analyzed for each controller designs based on the nominal system. Based on the analysis and results, the reduced order controller performance is equally as good as the exact and composite designs during steady state operations.en_US
dc.format.extentxiv, 80en
dc.language.isoen_USen_US
dc.publisherWichita State Universityen_US
dc.rights© Copyright 2012 by Abhiramy Aravinthan. All Rights Reserveden
dc.subject.lcshElectronic dissertationsen
dc.titleLinear quadratic regulator design for doubly fed induction generator using singular perturbation techniquesen_US
dc.typeThesisen_US


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