Demagnetisation optimisation of ring winding axial flux permanent magnet motor by modifying the load line of the magnet

Recently the new topologies of permanent magnet (PM) motor attract a lot attention. These newly introduced PM motors are not mature in design aspects and suffer from different perspectives. Therefore, it is necessary to develop common procedure overcome these drawbacks. One problems with phenomenon irreversible demagnetisation (ID) at high temperatures. So, solution this problem will be presented. The recently ring winding axial flux (RWAFPM) considered as case study. First, modified approach for modelling ID introduced. Then, effect rotor geometry parameters on RWAFPM discussed. Finally, developed multi-level multi-objective optimisation considering presented based Taguchi method.