Modeling and Identification of Harmonic Instability Problems In Wind Farms

Esmaeil Ebrahimzadeh; Frede Blaabjerg; Xiongfei Wang; Claus Leth Bak

doi:10.1109/ECCE.2016.7855258

Modeling and Identification of Harmonic Instability Problems In Wind Farms

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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0000-0001-8311-7412
Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University
Wang, Xiongfei ;
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0000-0002-6327-9729
Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University
Bak, Claus Leth
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0000-0002-8635-7689
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

Modeling and Identification of Harmonic Instability Problems In Wind Farms

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