Evaluation of Electromagnetic Behavior in an Induction Motor Under Voltage Variation

Induction electric motors are the main load in the industry globally. Their robustness has allowed their widespread use worldwide given their tolerance to different power supply conditions. Voltage variation is a silent disturbance in the power supply of several electric motors and inevitably produces deviations in the motor response. The impacts of this disturbance can be better appreciated from the magnetic assessment and its validation with experimental tests. Based on the above, this paper presents a magnetic assessment of the voltage variation in electric motors using the multi-physical FEM software Elmer, then the results have been validated from measuring campaigns. The impact evaluation of these disturbances becomes important given the existing regions with different supply voltages according to IEC 60038–2009.