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dc.contributor.authorSadeghian Sorkhabi, Sadafen
dc.date2016-02-26 15:45:14.369
dc.date.accessioned2016-02-29T22:00:54Z
dc.date.available2016-02-29T22:00:54Z
dc.date.issued2016-02-29
dc.identifier.urihttp://hdl.handle.net/1974/14086
dc.descriptionThesis (Master, Electrical & Computer Engineering) -- Queen's University, 2016-02-26 15:45:14.369en
dc.description.abstractRecent environmental policies and higher needs of energy have led to the huge growth in renewable sources consumptions. Consuming renewable energies however, is not always free of challenges. Many studies have been done to have a reliable integration and localization of the distributed sources, which have evolved into microgrid concept. These studies are mainly focused on microgrid’s occurrence prediction methods, control schemes and their undeniable part, grid synchronization techniques. The main goal of the studies is to help the microgrid and their distributed sources to ride through the short disturbances in grid-connected and islanded modes. Disturbances and unplanned changes that occur to a microgrid result in voltage and frequency fluctuations. These fluctuations could have destructive effects on power equipments. Therefore the existence of a robust and reliable controller and synchronizer is a must in microgrids. In this thesis, the focus is on synchronization techniques and control systems. Among different synchronization techniques including PLL-based methods and frequency adaptive methods, the Adaptive Notch Filter (ANF) is selected to be studied in more details. A controller design consisting of an ANF is then proposed to fixate the voltage and frequency of the system while islanded and to ensure the power generation sufficiency. Another important and critical task of the proposed controller is to prepare the islanded microgrid for transitioning to the grid-connected mode. The Fast and accurate synchronization technique is selected and a fast responding control system is proposed to achieve a smooth transition between the two modes. The ANF synchronization technique along with the proposed PLL-less control design are modeled in Simulink/MATLAB, which their performances in a system with disturbances and occurrences are evaluated. Balanced and unbalanced loads are added to the system and the connection between the microgrid and the grid is established. In this thesis the accuracy of the proposed control system in different conditions is examined and simulation results are presented. The results show that balanced three phase voltages at a fixed frequency are achieved, which also ensures a smooth transition between two modes.en
dc.language.isoengen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsCreative Commons - Attribution - CC BYen
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.subjectAdaptive Notch FIlteren
dc.subjectSynchronizationen
dc.subjectControlen
dc.subjectMicrogriden
dc.titleMicrogrid Control Based on an Adaptive Notch Filter Power Processoren
dc.typethesisen
dc.description.degreeM.A.Sc.en
dc.contributor.supervisorBakhshai, Alirezaen
dc.contributor.departmentElectrical and Computer Engineeringen
dc.degree.grantorQueen's University at Kingstonen


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