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      Admittance study of grid-connected VSCs for harmonic oscillatory instabilities

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          Abstract

          Voltage source converters (VSCs) can reduce damping of grid-connected VSC systems at harmonic resonances, leading to system instability. The conductance of the VSC admittance can be shaped selecting appropriate VSC parameter values to increase VSC damping at poorly damped harmonic resonances and ensure system stability. This study extends existing findings and makes contributions in this direction. Analytical expressions of the positive- and negative-sequence VSC conductances are presented to study exhaustively the impact of VSC parameters on harmonic oscillatory instabilities. Two applications, i.e. a traction system and an offshore wind power plant, are used to show the contribution of this study. The analytical study is validated from PSCAD/EMTDC time-domain simulations.

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          Most cited references 18

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          Impedance-Based Stability Criterion for Grid-Connected Inverters

           Jian Wu Sun (2011)
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            Input-Admittance Calculation and Shaping for Controlled Voltage-Source Converters

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              Impedance Modeling and Analysis of Grid-Connected Voltage-Source Converters

               M. Cespedes,  Jian Sun (2014)
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                Author and article information

                Contributors
                Journal
                IET-GTD
                IET Generation, Transmission & Distribution
                IET Gener. Transm. Distrib.
                The Institution of Engineering and Technology
                1751-8687
                1751-8695
                24 July 2019
                2 September 2019
                17 September 2019
                : 13
                : 18
                : 4049-4060
                Affiliations
                [1 ] Department of Electrical Engineering, ETSEIB-UPC, Av. Diagonal 647, 08028 Barcelona, Spain
                [2 ] Department of Industrial and Design System Engineering, Universitat Jaume I , Av. de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Spain
                [3 ] Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments (CITCEA-UPC) , ETSEIB, UPC, Av. Diagonal 647, 08028 Barcelona, Spain
                [4 ] School of Engineering, Cardiff University , CF24 3AA Cardiff, UK
                Article
                IET-GTD.2019.0321 GTD.2019.0321.R1
                10.1049/iet-gtd.2019.0321
                © The Institution of Engineering and Technology
                Page count
                Pages: 0
                Product
                Categories
                Research Article

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