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  4. Reactive power control in low voltage distribution grids: Comparison of centralized and decentralized Q(U)-controller designs based on probabilistic power flow analysis
 
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2013
Conference Paper
Title

Reactive power control in low voltage distribution grids: Comparison of centralized and decentralized Q(U)-controller designs based on probabilistic power flow analysis

Abstract
The massive integration of new decentralized generators in distribution grids has led to voltage problems, especially in the low voltage (LV) grid, where most of the generators are connected. One possibility to solve this problems is the introduction of voltage dependent reactive power control Q(U) which can influence the voltage level. This paper evaluates different decentralized Q(U)-droop controller parametrization methods against the centralized controller design, which is assumed to be optimal in terms of minimizing the provided reactive power while solving the voltage problem. The influence of all controllers on the nodal voltage and line usage rate is calculated via probabilistic power flow analysis. Parametrizing the decentralized controller with results of the centralized controller yields a cost effective alternative to centralized reactive power control.
Author(s)
Dallmer-Zerbe, Kilian
Biener, Wolfgang
Wille-Haußmann, Bernhard  
Mainwork
Internationaler ETG-Kongress 2013. Energieversorgung auf dem Weg nach 2050. CD-ROM  
Conference
Internationaler ETG-Kongress 2013  
Language
English
Fraunhofer-Institut für Solare Energiesysteme ISE  
Keyword(s)
  • Elektrische Energiesysteme

  • Systemintegration und Netze &#150 Strom

  • Wärme

  • Gas

  • Regenerative Stromversorgung

  • Elektrische Verteilnetze und Betriebsmittel

  • Dezentrale

  • netzgekoppelte Energiesysteme (Smart Grids)

  • Load Flow

  • Power

  • Grid

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