How do system parameters impact the grid harmonic distortion? VFD as a non-linear load produces harmonics that are injected into the grid and cause harmonic distortion. The level of harmonic distortion depends on the type of VFD, specifically the rectifier topology. However, it is also strongly affected by the parameters Read more…
What does purely inductive network actually mean? When calculating network harmonic distortion of variable frequency drives (VFD) there are basically two ways differentiating in complexity and eventually also accuracy. One is a simple harmonic calculation while the other option is a network harmonic study. The harmonic calculation is based on Read more…
Harmonic calculation versus network harmonic study As our regular reader you already have a solid knowledge about network harmonics caused by non-linear power electronic systems. It does not surprise you that network might have resonance(s) – a topic that needs to be addressed. Also, you are familiar with harmonic footprint Read more…