Vibration analysis of SRM designed for motoring and generating operation with spread spectrum ccurrent control

Vibrations of high speed SRM design focused on possible highest efficiency and low torque ripples both in motoring and generating mode of operation are investigated. The main constructional nodes that are source of vibrations are identified based on comparison of time sequences of motor frame displacement acceleration with total and phase motor current. Vibration analysis is the second stage of design process that suggest possible additional changes in stator and rotor geometry and controller operation that minimizes detrimental vibro-acoustic phenomenon.