RUMORED BUZZ ON VFD PANEL

But, if we decrease the frequency to 30Hz, then we have to also lessen the voltage to 240V to be able to sustain the V/Hz ratio. How are we gonna decrease the voltage if the one voltage we have is 650VDC?We can remove the AC ripple within the DC bus by introducing a capacitor. A capacitor operates in an analogous fashion to your reservoir or accumu