Contributions to SC C6 Session on Paper C6-304 – “Management of Low Voltage Grids with High Penetration of Distributed Generation: concepts, implementations and experiments”, by A.Bertani, A.Borghetti, C.Bossi, L.De Biase, O.Lamquet, S.Massucco, A.Morini, C.A.Nucci, M.Paolone, E.Quaia, F.Silvestro