Eigenvalue Analysis of a Network Connected to a Wind Turbine Implemented with a Doubly-Fed Induction Generator (DFIG)

Recently, the growing integration of wind energy into power networks has had a significant impact on power systemstability. Amongst types of large capacity wind turbines (WTs), doubly-fed induction generator (DFIG) wind turbinesrepresent an important percentage. This paper attemps to study the impact of DFIG wind turbines on the powersystem stability and dynamics by modeling all components of a case study system (CSS). Modal analysis is usedfor the study of the dynamic stability of the CSS. The system dynamics are studied by examining the eigenvaluesof the matrix system of the case study and the impact of all parameters of the CSS are studied in normal,subsynchronous and super-synchronous modes. The results of the eigenvalue analysis are verified by usingdynamic simulation software. The results show that each of the electrical and mechanical parameters of the CSSaffect specific eigenvalues.

[1]  Kit Po Wong,et al.  Oscillatory Stability and Eigenvalue Sensitivity Analysis of A DFIG Wind Turbine System , 2011, IEEE Transactions on Energy Conversion.

[2]  S. Iniyan,et al.  A review of wind energy technologies , 2007 .

[3]  Kit Po Wong,et al.  Optimal controller design of a doubly-fed induction generator wind turbine system for small signal stability enhancement , 2010 .

[4]  A. Mullane,et al.  Modeling of the wind turbine with a doubly fed induction generator for grid integration studies , 2006, IEEE Transactions on Energy Conversion.

[5]  David J. Atkinson,et al.  Stator-flux-oriented control of a doubly-fed induction machine with and without position encoder , 2000 .

[6]  P. Kundur,et al.  Power system stability and control , 1994 .

[7]  Peter W. Sauer,et al.  Power system modal analysis considering doubly-fed induction generators , 2010, 2010 IREP Symposium Bulk Power System Dynamics and Control - VIII (IREP).

[8]  Peter W. Sauer,et al.  Power System Dynamics and Stability , 1997 .

[9]  F.V.P. Robinson,et al.  Sensitivity study of parameters influencing large-disturbance stability of wind-farm implemented with DFIG , 2010 .

[10]  Janusz Bialek,et al.  Power System Dynamics: Stability and Control , 2008 .

[11]  Thomas Ackermann,et al.  Wind Power in Power Systems , 2005 .

[12]  S. Mishra,et al.  Small-Signal Stability Analysis of a DFIG-Based Wind Power System Under Different Modes of Operation , 2009, IEEE Transactions on Energy Conversion.

[13]  V. Akhmatov.  Analysis of Dynamic Behaviour of Electric Power Systems with Large Amount of Wind Power , 2003 .

[14]  Jürgen Stenzel,et al.  Impact of large scale wind power on power system stability , 2005 .

[15]  Wei Qiao,et al.  Dynamic modeling and control of doubly fed induction generators driven by wind turbines , 2009, 2009 IEEE/PES Power Systems Conference and Exposition.

[16]  Yixin Ni,et al.  A Survey on Wind Power Technologies in Power Systems , 2007, 2007 IEEE Power Engineering Society General Meeting.

[17]  Bikash C. Pal,et al.  Modal Analysis of Grid-Connected Doubly Fed Induction Generators , 2007 .