The electronic converter for exchange of power

Control of a back‐to‐back converter as a power transfer system using synchronverter approach

“…Some of these devices are the flexible AC transmission systems, the solid state transformers and the back-to-back systems or BtBs [7,8]. It is not clear the actual date of invention of the BtB system, but, some of the first references come from 1934 [9] and 1944 [10], where the BtB structure was used as a power transfer system.…”