Manufacturing tolerances influence on permanent magnet synchronous generator (PMSG) performance

摘要

Within SWIP project, a PMSG based wind turbine has been designed and manufactured to be installed in an educational area. During the design stage, several finite element studies has been performed to evaluate the PMSG behavior, including no-load voltage, generated power, or cogging torque analysis among others. During this stage no machine deformations are considered, that is, the rotor is perfectly cylindrical and the gap is uniform. When the real prototype is manufactured, these assumptions may not be valid, due to dimensional tolerances. Therefore, before PMSG manufacturing stage, a previous analysis must be done considering the influence of manufacturing tolerance.