Novel Method for Fast Analysis of Cogging-Torque Harmonics in Permanent-Magnet Synchronous-Machines

摘要

For servo drives such as Permant-Magnet Synchronous-Machines (PMSM) the reduction of cogging-torque harmonics is of major interest. Usually the analysis of the cogging-torque harmonics is limited to studies of symmetric machines without errors e.g. in magnetization due to manufacturing-tolerances. The novel method presented in this paper allows for fast analysis of PMSMs with asymmetric geometry and erroneous magnetization.