Decoupled Model for Asymmetrical Dual Three Phase Permanent Magnet Synchronous Machine

Abstract

This paper presents a decoupled modeling method for asymmetrical dual three phase (DTP)permanent magnet synchronous machine (PMSM). Due to the special structure of this machine, traditional decoupled method cannot be applied on it. This paper proposes a new method that applying inverse voltage to two sets of windings and transferring 6 phase model to a symmetrical 3 phase model, which d-q decoupled control can be used. Simulation result shows the equivalent symmetrical model has exact the same dynamic and steady performance with the asymmetrical dual three phase model.