Journal article
Oscillatory Stability and Eigenvalue Sensitivity Analysis of A DFIG Wind Turbine System
This paper focuses on modeling and oscillatory stability analysis of a wind turbine with doubly fed induction generator (DFIG). A detailed mathematical model of DFIG wind turbine with vector-control loops is developed, based on which the loci of the system Jacobian's eigenvalues have been analyzed, showing that, without appropriate controller tuning a Hopf bifurcation can occur in such a system due to various factors, such as wind speed.
Subsequently, eigenvalue sensitivity with respect to machine and control parameters is performed to assess their impacts on system stability. Moreover, the Hopf bifurcation boundaries of the key parameters are also given. They can be used to guide the tuning of those DFIG parameters to ensure stable operation in practice.
The computer simulations are conducted to validate the developed model and to verify the theoretical analysis.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2011 |
| Pages: | 328-339 |
| ISSN: | 15580059 and 08858969 |
| Types: | Journal article |
| DOI: | 10.1109/TEC.2010.2091130 |
| ORCIDs: | Østergaard, Jacob |
Doubly fed induction generator (DFIG) Eigenvalue-value sensitivity Hopf bifurcation, stability
Bifurcation Converters Eigenvalues and eigenfunctions Hopf bifurcation Jacobian eigenvalue system Jacobian matrices Rotors Stability analysis Wind speed Wind turbines asynchronous generators bifurcation doubly fed induction generator eigenvalue sensitivity eigenvalue sensitivity analysis eigenvalues and eigenfunctions oscillatory stability power generation control power system stability stability vector-control loop wind speed wind turbine system wind turbines
