Empirical study of system-level PV power plant power factor adjustment relying on PV inverter

A experiment of photovoltaic inverter helping power facotr adjustment of PV power station is carried on. A SVG is connected to the 10kV bus bar of 30MWp PV power station in parallel. The effect of photovoltaic inverter on PV power station power factor regulation is studied on the adjustment of photovoltaic inverter with SVG offerring reactive power violation. Through the trial, we found the PV power station power factor regulation can be achieved by photovoltaic inverter, but the adjustment is slower, and oscillation phenomenon occurs when multiple inverters adjust. The test results can provide reference to the technology development of the photovoltaic inverter.