The main function of the power electronics interface (interlinking converter) is linking the DC and AC micro grids. The IC is, also, used to avoid the requiring much higher sources ratings in order to meet supply and demand within each micro grid .
one of the most valuable papers is
1- A Novel Control Strategy for Grid Connected Hybrid Renewable Energy Systems using Improved Particle Swarm Optimization.
this paper modified the structure of the interlinking converter without losing its operational characteristics; This is achieved by dividing an IC structure into two stages, the first stage is a DC-DC converter and a second stage is a 12 -switch, three phase 3LNPC2. Three voltages measured at the DC and AC terminals of interlinking converter, and the DC-link capacitor