Research on sub/super-synchronous oscillation suppression method for direct-drive wind turbine based on energy compensation

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dc.contributor.authorMa, Jingen
dc.contributor.authorZhang, Minen
dc.contributor.authorPhadke, Arun G.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2021-07-29T18:06:01Zen
dc.date.available2021-07-29T18:06:01Zen
dc.date.issued2021-08-17en
dc.description.abstractA method to suppress sub/super-synchronous oscillation of direct-drive wind turbines based on energy compensation is proposed. First, the transient energy model of direct-drive wind turbine is built, and the negative damping energy terms that lead the oscillation of direct-drive wind turbine are extracted. On this basis, the expressions of voltage compensation terms corresponding to negative damping energy terms are derived by backward deduction, thus supplementary energy branches are constructed, and their impact on fundamental frequency characteristics of wind turbine is analyzed. And then, with the compensation energy of supplementary branches reaching the maximum and the increment of fundamental-frequency voltage being the minimum as the objective, and with the frequency-domain characteristic and fundamental-frequency voltage characteristic of control links being satisfied as constraints, a scheme to optimize the compensation coefficients of multiple branches is established. Finally, the model of direct-drive wind turbine is built in RT-LAB for hardware-in-the-loop tests. Simulation results verify that, the method can realize fast frequency-dependent suppression of sub/super-synchronous oscillation in different frequency bands concerning different grid strengths.en
dc.description.notesNational Natural Science Foundation of China, Grant/Award Number: 51777070en
dc.description.sponsorshipNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51777070]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1049/rpg2.12182en
dc.identifier.eissn1752-1424en
dc.identifier.issn1752-1416en
dc.identifier.urihttp://hdl.handle.net/10919/104447en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleResearch on sub/super-synchronous oscillation suppression method for direct-drive wind turbine based on energy compensationen
dc.title.serialIet Renewable Power Generationen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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