A Photo-Voltaic Invert-er Cluster Resonance Suppression Method Based on Capacitor Voltage Feed-Forward

Abstract Photo-voltaic inverts usually use LCL filter for filtering, and will bring resonance problems to the system. This paper focuses on invert-er side current feedback control (invert-er feedback, ICF). proposes a method suppressing of photo-voltaic clusters based capacitor voltage feed-forward. First, establish ICF mathematical model HPF CVF under weak grid, qualitatively analyze mechanism cluster invert-er, then system structure stability according proposed method, finally verify effectiveness through simulation experiment sexuality correctness.