Modeling of a twelve-phase synchronous machine using Matlab/SimPowerSystems

Electric propulsion is now gaining more and more interests in both civil and military ships. Multiphase machine, with many inherent advantages, is supposed to be a proper choice of the propulsion motor for electric propulsion systems. In this paper, mathematical model of twelve-phase synchronous machine with four Y-connected three-phase symmetrical windings displaced in turn by 15 degree is obtained. Then simulation model of the machine is established in Malabo using SimPowerSystems toolbox. In order to validate the simulation model, a simulation case is constructed and implemented, and the simulation results show that the simulation model of the twelve-phase synchronous machine is usable.