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This paper describes the effect of electrical parameters of the double fed induction generator on the transient voltage stability of a DFIG to a simple grid; the DFIG model has been developed in the Matlab/simulink tool. The dynamic behavior of a wind turbine connected to a grid is examined. A three-phase fault is applied close to the wind turbine. The effect of different electrical parameters of...
The sustained oscillation often appears in the induction motor (IM) systems with indirect field-oriented control (IFOC) and essentially caused by the unstable equilibrium points undergoing Hopf bifurcation. In order to stabilize these undesirable oscillations, a convenient time-delayed state feedback method is presented and its accomplishing process is indicated for a tested IM system in detail. It...
An effective Hopf bifurcation criterion is provided for an induction motor (IM) drive system with indirect field oriented control (IFOC). According to the criterion, the bifurcation surface is shown to indicate parameters' influences on Hopf bifurcation set. Research results instruct us how to quench Hopf bifurcation by proper setting of PI parameters. Then, time-delayed state feedback method is introduced...
Small signal stability analysis is conducted considering grid connected doubly-fed induction generator (DFIG) type. The modeling of a grid connected DFIG system is first set up and the whole model is formulated by a set of differential algebraic equations (DAE). Then, the mathematical model of rotor-side converter is built with decoupled P-Q control techniques to implement stator active and reactive...
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