This master thesis deals with the analytical design of a synchronous machine with permanent magnets.
The aim is to calculate the main parameters and requirements of such machines. At the beginning of the calculation, the definition of the geometry is very important because out of the geometry data and the material parameters most machine parameters can be computed. The design calculation is performed in an analytical way. The evaluation starts with default parameters of the desired machine. The first step is to calculate the geometry, then the parameters of the stator winding are computed. Following the design of the magnetic circuit is carried out.
The design is verified by a no-load recalculation of the magnetic circuit. Afterwards the leakage flux, inductances and other parameters of the machine are computed. In the last step, the losses and efficiency factor are estimated. Included in this master thesis is a comparison of the calculated results of interior and surface-mounted permanent magnet synchronous machines. The thesis shows that the analytical calculation at the beginning of a design process of a new machine is a helpful tool.
However before the machine can be built, a finite element model of the machine is necessary to check various parameters and make adjustments to the geometry. Therefore, the data of the analytical calculation should be processed in a finite-element method program. In addition, the analytical calculation can be refined further. The difficulty is to put together the various detailed models to a complete machine model.