IEEE Transactions on Magnetics · 2015 · 81 citations · 12 references
EngineeringElectrical EngineeringMechanical EngineeringElectric MachinesElectromagneticsFinite Element AnalysisElectric MotorsMachine WindingsMagnetic Circuit AnalysisNoise Reduction DesignPermanent Magnet MachinesSynchronous MachinesAcoustic Noise ReductionBrushless Direct Current MachinesElectric Motor NoiseFinite Element Analysis Of MachinesMotor Noise ReductionPermanent Magnet Synchronous MachinesPermanent Magnet Synchronous MotorsPoles
In low- to medium-power-rated brushless machines, noise of electromagnetic origin is generally prevailing over mechanical and aerodynamic sources. The appropriate combination of pole and slot of a permanent magnet synchronous motor is one of the keys to its performances among which stands noise reduction. This paper investigates configurations regarding this aspect for distributed overlapping and single-layer concentrated nonoverlapping winding configurations. Chosen combinations are 8 poles 48 slots (8p48s), 8p72s, 46p48s and 50p48s. The air-gap flux density is obtained by 2-D finite element analysis (FEA), allowing to compute the electromagnetic pressure. It then serves as input of mechanical and acoustical 3-D FEA models of the stator with carter.
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