The analysis of steady-state characteristics of double fed induction generator

The research of the steady-state characteristic of doubly fed induction generator (DFIG) can help us understand the working process of the generator.And in accordance with the features we can control the generator to improve the efficiency.On the basis of motor theory, the DFIG´s mathematical model is established, and the relationship between the DFIG´s stator active, reactive power and rotor´s voltage and current is deduced and the relationship between the rotor´s active power and slip.which was the DFIG´s steady state characteristic.Finally the DFIG´s steady-state characteristic is simulated. The simulation results demonstrate the accuracy of the theory proposed in this paper.