Application of VSG technology based on flexible parameter adjustment in PV unit grid-connected inverter

Abstract As a clean and effective renewable energy source, PV has been widely used in power systems. The application of VSG technology can effectively improve the system inertia reduction problem caused by grid connection storage units. virtual damping coefficient control have unique advantages being flexible controllable. This paper designs strategy which be flexibly adjusted according to frequency, further improves operating performance units based on control. frequency quality is maintained. Finally, effectiveness proposed parameter adjustment was verified through simulation platform, played role popularizing engineering.