The invention discloses a Doubly-Fed 
Induction Generator (DFIG) parameter identification method, and belongs to the field of power 
system modeling. The DFIG parameter identification method comprises the following steps: firstly, determining an analytical expression of 
stator dq axis 
short circuit current under a condition of three-phase 
metal short circuit of a port of a doubly-fed 
induction generator, and determining parameters to be identified according to the analytical expression; building a single-
machine infinite bus system of a doubly-fed wind 
turbine generator set based on a 
Matlab / Simulink platform, setting the three-phase 
metal short circuit at the port of the doubly-fed 
induction generator, and simulating to obtain a disturbed trajectory of the 
stator dq axis short circuit current; analyzing the 
identifiability of each parameter to be identified and the complexity for parameter identification by adopting a trace sensitivity method; and finally, identifying all the parameters to be identified by adopting a 
particle swarm optimization algorithm, and determining parameter identification values according to multiple identification results. Compared with a method based on active power and reactive power, the doubly-fed 
induction generator parameter identification method for DFIG parameter identification based on the 
stator dq axis short circuit current has the 
advantage that the influence caused by the 
current transformer control procedure is low; and the parameter identification values are determined according to the multiple parameter identification results, so that the problem of large errors possibly caused by single identification is avoided.