Overview

One of the most pressing issues in successfully integrating PV-generated energy onto the grid involves alignment of the incumbent distribution network and the integrated solar farm to ensure non-linear loads do not produce disruptive transients and distortions, leading to high circulating currents that can deteriorate the system and damage inverters. Inserting PV-generated power onto the grid requires the conversion from DC to AC. Inverters are used for this purpose, and they must be aligned with the grid to produce a sine wave that can be injected into the power grid with no deviations in voltage or frequency.