Development and Creation of an Experimental Bench for Checking the Results of Topological Optimization

Today, permanent magnet synchronous motors (PMSM) are increasingly used in various industries due to their high efficiency and small size. However, the main drawback of these motors is the high cost, including due to the cost of permanent magnets (PM). It is possible to reduce the PM volume by changing the design of the rotor, by means of the optimal arrangement of materials (rotor topology). The desired topology of the rotor can be found using complex topological optimization based on a genetic algorithm. Evolutionary algorithms were chosen as a search method, and a genetic algorithm was chosen based on the comparison. All solutions in the field of changing the design of the PMSM are presented, and as a result, it is revealed that there are no works in the field of complex topological optimization. For the considered engine, a geometric model was built, verification was carried out, and as a result of changing the geometric model of the PMSM, the calculation time was reduced. A program has been developed and implemented for carrying out optimization in terms of torque with subsequent check cycles in terms of temperature and strength parameters. Thus, a new design of the PMSM with improved technical characteristics was obtained - the value of the moment increased by 9.5%, the volume of the PM decreased by 9.7%. To check the results of topological optimization, an experimental stand was developed and created.