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Modeling and Identification of Harmonic Instability Problems In Wind Farms

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Authors:
  • Ebrahimzadeh, Esmaeil ;
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    Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University
  • Blaabjerg, Frede ;
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    Orcid logo0000-0001-8311-7412
    Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University
  • Wang, Xiongfei ;
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    Orcid logo0000-0002-6327-9729
    Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University
  • Bak, Claus Leth
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    Orcid logo0000-0002-8635-7689
    Electric Power Systems, Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University
DOI:
10.1109/ECCE.2016.7855258
Abstract:
In power electronics based power systems like wind farms, the interactions between the inner control systems of the power converters and the passive components may lead to high frequency oscillations, which can be called harmonic instability. In this paper, a simple methodology is presented to identify harmonic instability problems in wind farms, where many wind turbines, cables, transformers, capacitor banks, shunt reactors, etc, typically are located. This methodology introduces the wind farm as a Multi-Input Multi-Outpur (MIMO) control system, where the linearized models of fast inner control loops of the grid-side converters are considered. Therefore, instability problems of the whole wind farm are predicted based on the poles of the introduced MIMO system. In order to confirm the effectiveness of the proposed analytical approach, time-domain simulations are performed in the PSCAD/EMTDC software environment for a 400-MW wind farm. The proposed analytical analysis method and time-domain simulation results show that both dynamics of the power electronic converter and the parameters of the passive component can effect on the wind farm stability.
ISBN:
9781509007370
Type:
Conference paper
Language:
English
Published in:
Proceedings of 2016 Ieee Energy Conversion Congress and Exposition (ecce), 2016
Keywords:
wind farm; instability; harmonic; Multi-Input Multi-Output control system
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Conference:
2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
Publisher:
IEEE Press
Submission year:
2016
Scientific Level:
Scientific
ID:
2352660631

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