Fuzzy Knowledge Based Design of PM Synchronous Motors

The design of a Permanent Magnet Synchronous Motor (PMSM) is an involved task, that needs a well-stated experience in the field, to give a rapid convergence to the trial-and-error procedure on which the design itself is usually based on. The paper illustrates first the application of Fuzzy Logic (FL) to synthesise the design rules that every skilled designer has in his head. The resulting Fuzzy Logic algorithm is profitably used to replace the expert in proposing the changes to the design after each trial step; a completely automatic design loop is therefore obtained and implemented on a Personal Computer (PC). The paper shows and comments the results on different successful design examples, and gives the details on the FL algorithm synthesis and implementation