Effect of stator permanent magnet thickness and rotor geometry modifications on the minimization of cogging torque of a flux reversal machine

Authors : Bheeman VIDHYA, Kandadai Nagaratnam SRINIVAS

Pages : 4907-4922

View : 18 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This paper attempts to examine the effect of stator-rotor geometry on the minimization of cogging torque of a flux reversal generator insert ignore into journalissuearticles values(FRG);. With respect to stator geometry, height insert ignore into journalissuearticles values(or thickness); of the permanent magnets of the stator poles was varied and cogging torque minimization was observed. With respect to rotor geometry, the following cases were considered: a); rotor pole arc variation and b); V-shaped punches on the rotor pole. The characterization of FRG under these cases for the observation of the effects on cogging torque was performed using three-dimensional finite element analysis. From the results of simulation, a model was selected for prototyping. The working model was thus made and validated. Discussions of the possible inferences of every case are systematically provided. Such a sensitivity analysis focused on the reduction of cogging torque is a new addition to the FRG literature.
Keywords : Flux reversal generator, cogging torque, parametric variations, permanent magnet, finite element analysis