Design of double stator axial flux permanent magnet synchronous motor

Increasing energy efficiency in the industrial sector is of great importance for sustainability. Today, the use of higher efficiency and higher power density motors instead of conventional asynchronous motors is becoming increasingly widespread. In this context, with the effect of the development of magnet and axial flux motor technology, axial flux permanent magnet synchronous motors offer an important alternative with their compact structure, high torque capacity and improved thermal performance. In this thesis, a double stator axial flux synchronous motor design is carried out. The main objective of the study is to create a more balanced motor structure by minimising the irregular magnetic attraction forces seen in single-sided axial flux motors. In this context, a double stator and single rotor motor model has been developed by taking the stator dimensions of a 3-phase, 100 A, 48 V motor from Motenergy as reference. In this rotor model, surface magnet NN structure was used. The magnetic, thermal and structural analyses of the motor were carried out by Finite Element Method (FEM) and Multi Objective Genetic Algorithm (MOGA) method was used in the optimisation process. The design process was started with mathematical modelling and then continued with FEM based analyses. The results obtained show that the proposed motor design has significant advantages in terms of high efficiency (92.41%) and more balanced magnetic force distribution with torque ripple value around 7%.