2010-2011 > Academic research: refereed > Publication in refereed journa

Dong, Zhao Yang

Ma, Xikui

Wong, Kit Po

Xu, Zhao

Yang, Lihui

Østergaard, Jacob

IEEE Transactions on Energy Conversion

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 Jacobians 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.Department of Electrical Engineerin

Yang, L

Xu, Z

Ostergaard, J

Dong, ZY

Wong, KP

Ma, X

The Hong Kong Polytechnic University Pao Yue-kong Library

Oscillatory stability and eigenvalue sensitivity analysis of a DFIG wind turbine system

Lihui Yang

Zhao Xu

Jacob Østergaard

Zhao Yang Dong

Kit Po Wong

Xikui Ma

Crossref

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

Online Research Database In Technology

http://orbit.dtu.dk/ws/files/5449466/05678830%5B1%5D.pdf

Oscillatory Stability and Eigenvalue Sensitivity Analysis of A DFIG Wind Turbine System

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The Hong Kong Polytechnic University Pao Yue-kong Library

Crossref

Online Research Database In Technology