A Unified Modeling Method of Photovoltaic Generation Systems Under Balanced and Unbalanced Voltage Dips

With increasing penetration of photovoltaic (PV) generation systems, it is significant to develop effective models to characterize the dynamic behaviors of actual PV systems under balanced and unbalanced fault conditions. To address this issue, massive field tests have been conducted for on-site PV systems from different manufacturers. Based on the test results, the universal low voltage ride-through (LVRT) response waveforms, including the pre-...