D, Q reference frames for the simulation of multiphase (six phase) wound rotor induction generator driven by a wind turbine for disperse generation

Abstract

The wound rotor induction machine has been traditionally accepted for a long time in a wind energy conversion system. Despite numerous concepts have been established on wound rotor induction generator (WRIG), the WRIG is lacking in the area of the multi-phase system. Hence the interest of research fraternity starts growing toward modelling of un-conventional WRIG with Wind Energy Conversion System. In this direction, six-phase wound rotor induction generator (SPWRIG) can be a game changer, because it has the property of WRIG as well as multi-phase technology. This study introduces the novel SPWRIG based on mathematical modelling, control technique, simulation and experimental results. As a major novelty, this study has included a comparison of various currents and its importance in the excitation reference frame, rotor reference frame, stator reference frame. The accuracy of mathematical modelling has been tested by experimental and simulation results.