Grid-connected power converters

which are frequently used to link renewable generation plants with the grid

are required to provide a better functionality for large scale integration of renewables. They are expected to be grid-friendly

or even grid-supportive

instead of simply grid-feeding or grid-demanding. This paper designs a synchronous power controller for grid-connected converters in detail

emulating the electromechanical characteristics of synchronous machines and improving even its actual performance

as it is based on a virtual approach. Based on this design

the grid-interfacing units are capable of showing inertia

damping

and droop characteristics as synchronous machines and presenting thus a grid-supporting behavior. The detailed control design and experimental validation on a 10 kW laboratory setup acts as the main contribution of this paper

compared with the existing studies on generator emulation controls.