Variable speed DFIG modelling and parameter dependency of initial transient response

A doubly fed induction generator (DFIG) as a part of a wind energy conversion system (WECS) is modelled in detail using d-q vector control approach.Apart from the constant speed,the variable wind speed operation is demonstrated by utilising simple SIMULINK blocks where the effectiveness of the controller is well established.It would be a useful alternative approach,different from other previous approaches where the complex statistical wind speed data is absent for experimental simulation model of DFIG based WECS.Later,initial transient response time for both fixed and variable wind speed and parameter dependency of transient time (including inertia constant) has been emphasised and demonstrated with different sets of parameter