Electromechanical interactions in a doubly fed induction generator drivetrain

Normally, electrical and mechanical systems are designed and analysed in separate domains but, in this paper, interactions between electric and mechanical elements are analysed looking for improvement in the performance of electro-mechanical drivetrains. The work considers a Doubly Fed Induction Generator (DFIG), evaluated with a frequency analysis of the full electro-mechanical drivetrain developed and applied to identify how tuning gains and system parameters affect the electro-mechanical interactions. Analytical transfer functions are presented and validated by simulation and test results.