An Analysis of High Power Inductor Vibration Behavior in Terms of Air Gaps

Inductors are one of the critical components of the power electronics applications. Their performance has significant effect on overall system performance. Therefore, they should be monitored to detect unfavorable conditions such as saturation, heating up, vibration and noise caused by abnormal opeating condition. In this study, the vibrations of the inductor employed in the LCL filter, generated by high frequency switching, are modelled and simulated. Four different inductors with different number of gaps have been investigated, and the core forces and the vibrations formed according to these forces have been investigated. The obtained results are analysed, compared and presented.