IEEE Transactions on Magnetics · 2003 · 117 citations · 7 references
EngineeringElectrical EngineeringElectric MachinesMachine DesignMechatronicsBrushless Dc MachinesElectric MotorsElectromagnetic Torque ProductionMachine WindingsMagnetic Circuit AnalysisSynchronous MachinesBrushless Direct Current MachinesCogging TorqueCogging Torque MitigationCogging Torque ReductionElectromagnetic Torque CalculationFinite Element ModelingTorque ProductionTorque Production In Brushless Machines
An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described. It is shown by finite-element analyses and measurements that, by appropriately defining the pole-arc to pole-pitch ratio, the optimal pole-arc to pole-pitch ratio for minimum cogging torque, which has been derived for surface-mounted magnet machines, is equally applicable to interior-magnet machines.
7