Grid Connected Photovoltaic using Modular Multilevel Converter as Shunt Active Power Filter

Grid-connected photovolatic using Modular Multilevel Converter (MMC) as shunt active power filter is suggested in this article to compensate for harmonics produced by nonlinear loads that have tolerable total harmonic distortion. Using synchronized reference frame theory, the proposed converter injects current at a common coupling point by control of MMC dc bus voltage at the PV power corresponds to the maximum power point. The SAPF performance of the suggested PV-based MMC satisfies IEEE 519 standard.