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dc.contributor.authorIbrahim, Ahmad Osman-
dc.contributor.authorNguyễn, Thanh Hải-
dc.contributor.authorLee, Dong-Choon-
dc.contributor.authorKim, Su-Chang-
dc.date.accessioned2018-11-21T08:10:17Z-
dc.date.available2018-11-21T08:10:17Z-
dc.date.issued2011-
dc.identifier.urihttp://localhost:8080//jspui/handle/123456789/5148-
dc.description.abstractThis paper proposes a low-voltage ride-through technique of a doubly fed induction generator (DFIG) wind turbine system using a dynamic voltage restorer (DVR). For effective control of the DVR, digital all-pass filters are used for extracting the positive-sequence component from the unbalanced grid voltage since they have the advantages of giving a desired phase shift and no magnitude reduction over conventional low- or high-pass filters. Using the positive-sequence component, the phase angles for the positive- and negative-sequence components of the grid voltage are derived. A control algorithm for the DVR that is dual voltage controllers only is implemented for the two sequence components in the dq synchronous reference frame. In order to achieve the power rating reduction of the DVR, the stator power reference for the DFIG is reduced during faults. In addition, a control scheme of pitch angle system is applied to stabilize the operation of the wind turbine system in the event of grid faults. PSCAD/EMTDC simulations show the effectiveness of the proposed technique and a feasibility of reducing the power rating of DVR for the fault ridethrough capability of DFIG. The validity of the proposed control scheme for the DVR has also been verified by experimental results.vi_VN
dc.language.isoenvi_VN
dc.relation.ispartofseriesIEEE Transactions on Energy Conversion;26 .- p.871-882-
dc.subjectDoubly fed induction generator (DFIG)vi_VN
dc.subjectDynamic voltage restorer (DVR)vi_VN
dc.subjectGrid codevi_VN
dc.subjectPitch angle systemvi_VN
dc.subjectVoltage sagvi_VN
dc.subjectWind powervi_VN
dc.titleA Fault Ride-Through Technique of Dfig Wind Turbine Systems Using Dynamic Voltage Restorersvi_VN
dc.typeArticlevi_VN
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