I am working on VFD for single phase induction motor. I am rectifying AC 220V directly to DC link capacitor. There is no LC filter from AC mains. There are harmonics in the AC mains. Can you suggest me a good way to design AC main filter or recommend me a filter that I can attach directly to my VFD to remove the harmonics?
I am want to know which type of core must be used, what will be the cut off frequency for this AC main filter.
The components that are appeared with my filter are given below.