Abstract
The evolving multiphase induction generators (MPIGs) with more than three phases are
receiving prominence in high power generation systems. This paper aims at the development of a
comprehensive model of the wind turbine driven seven-phase induction generator (7PIG) along
with the necessary power electronic converters and the controller for grid interface. The dynamic
model of the system is developed in MATLAB/Simulink (R2015b, The MathWorks, Inc., Natick,
MA, USA). A synchronous reference frame phase-locked loop (SRFPLL) system is incorporated for
grid synchronization. The modeling aspects are detailed and the system response is observed for
various wind velocities. The effectiveness of the seven phase induction generator is demonstrated
with the fault tolerant capability and high output power with reduced phase current when
compared to the conventional 3-phase wind generation scheme. The response of the PLL is
analysed and the results are presented.