I'm working on GaN solar inverter project where I'm facing these unwanted damping of high frequency signal in the grid side current. These signal are coming simultaneously at fixed interval in the waveform.
Hi, your waveforms contain noise of two periods, not 'unwanted damping of high frequency signal': some very high frequency noise is everywhere (at ~100 periods per cycle, hence at a frequency approximately 100 times higher than your base oscillations) but seems to burst im amplitude about 6 times per full cycle ( so 6 tmes the base oscillation ferquency) Work out the precise frequencies, f, from your plots and include LRC filters to dampen them where 2*pi*f=1/root(LC).
Thomas Walther Thank you for suggestion. There is one special peak coming of 18khz frequency. how can I remove this?
He, build a passive bandstop filter with L and C in parallel so their product is L*C=1/(4*pi*f^2). This should block f from passing.
- Badges
- Science topic
- Similar topics
- Correction