Enhanced Grid-Forming Inverters in Future Power Grids

New control approaches for grid integrated power inverters are under investigations while increasing the renewable power generation in electrical grids. This paper presents an extended grid-forming control and outlines a theoretical analysis. Unlike conventional current-controlled inverters, grid-forming inverters participate directly in forming the grid and therefore they provide inherently beneficial grid services. The merit is demonstrated experimentally with a Power-Hardware-in-the-Loop test bench.