On Wound Rotor Induction Machine Rotor Electrical Unbalance Recognition Using Stator Frame Vibration Spectral Analysis

摘要: This paper investigates the torque and vibration signal spectra of wound rotor induction machines when subjected to different levels electrical unbalance. A harmonic machine model numerical study is first performed identify electromagnetic spectral components related operation without or with Once understanding correlation between operating conditions content established, a series laboratory tests are conducted evaluate manifestation detectability electromagnetically induced matching identified disturbance frequencies in study. The magnitude unbalance signature assessed for range measurements taken on two designs.