Modeling and control of power converters in weak and unbalanced electric grids

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  • Modeling and control of power converters in weak and unbalanced electric grids Book Detail

  • Author : Just, Hendrik
  • Release Date : 2021-11-25
  • Publisher : Universitätsverlag der TU Berlin
  • Genre : Technology & Engineering
  • Pages : 236
  • ISBN 13 : 379833207X
  • File Size : 8,8 MB

Modeling and control of power converters in weak and unbalanced electric grids by Just, Hendrik PDF Summary

Book Description: Grid converters increasingly affect power system operation due to the increasing share of renewable energy sources and less conventional power plants. This shift in power generation leads to converter-dominated weak grids, which show critical stability phenomena but also enable converters to contribute to grid stability and voltage support. This thesis presents critical parts of converter controls and describes models to assess their characteristics. These models are used to derive design criteria and dedicated stability analysis methods for grid converter controls. Der steigende Anteil an erneuerbaren Energien in den Energieversorgungsnetzen führt zur Verdrängung konventioneller Kraftwerke. Diese Entwicklung lässt umrichterdominierte und schwache Netzabschnitte entstehen, die kritischen Stabilitätsmechanismen unterliegen, allerdings auch ermöglichen, dass Umrichter aktiv zur Netzstützung und Netzstabilität beitragen können. Die vorliegende Arbeit beschreibt kritische Regelungskomponenten der Umrichter und deren Modellierung. Auf Basis der Modelle werden Auslegungskriterien für die Regelungen abgeleitet und dedizierte Stabilitätsanalysemethoden präsentiert.

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