Electromagnetic Noise Reduction Design of AC Traction Motors Based on Stator and Rotor Slot Structure Optimization
In view of the large electromagnetic noise in AC traction motors,a designing method of the motors with re-duced noise has been studied based on collaborative optimization of stator and rotor slot structures.The paper analyzes generation mechanism of electromagnetic noise of AC traction motors analyzed,elaborates basic principle and specific de-sign method of noise reduction for slot bottom of the stator and rotor slot,and performs parameter optimization on slot position and slot size.The noise reduction utility is simulated and verified,and compared with the noise reduction by stator tooth shoulder chamfering.It has been found that optimizing stator and rotor slot structures using the proposed method a-chieves obviously decreased noise while maintain a moderate increment in motor efficiency,thus achieving a better noise reduction effect.
AC traction motorelectromagnetic noise reductionstator and rotor slot structure optimizationparameter optimization
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