Assessment of Subsynchronous Oscillations in AC grid-connected VSC Systems with Type-4 Wind Turbines
comunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Assessment of Subsynchronous Oscillations in AC grid-connected VSC Systems with Type-4 Wind TurbinesFecha de publicación
2019-10-16Editor
The Institution of Engineering and Technology (IET)Cita bibliográfica
MONJO MUR, Lluís, et al. Assessment of Subsynchronous Oscillations in AC grid-connected VSC Systems with Type-4 Wind Turbines. IET Renewable Power Generation. Num. online. pp. 1-11. 2019.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.0291Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
Converters are the key for the increasing development of renewable energy generation but their dynamic
interaction with the grid has an important impact on stability. Oscillatory instabilities in different grid-con ... [+]
Converters are the key for the increasing development of renewable energy generation but their dynamic
interaction with the grid has an important impact on stability. Oscillatory instabilities in different grid-connected converter
systems at several frequency ranges are reported. In particular, sub and supersynchronous oscillatory instabilities in AC
power systems with type-3 and type-4 wind turbine generators were recently registered at several wind farm areas. A
number of works based on eigenvalue analysis and frequency domain approaches are carried out to analyze this new
stability issue and more research is going on to analyze in detail the electric and control parameters that may affect this
phenomenon. This paper contributes analyzing in detail the influence of system parameters on the subsynchronous
oscillations in AC power systems with type-4 wind turbine generators. This study is based on a new approach for
subsynchronous stability assessment which could also be used for analyzing other types of subsynchronous oscillations (e.g.,
subsynchronous control interactions between doubly-fed induction generators and series-compensated networks) as well
as supersynchronous oscillations. A representative example of weak AC grids with type-4 wind turbine generators is used
to illustrate the contributions of the paper. Results are validated with PSCAD/EMTDC time-domain simulations. [-]
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