Abstract: The invention relates to a conversion device (4) allowing electrical energy to be transferred between a DC network (6) and an AC network (10), the conversion device (4) including: a DC-to-DC converter (12) comprising a first switch (20), a second switch (22), and a low-voltage branch (16) and a high-voltage branch (18), each comprising two sub-branches (34) in series, each sub-branch (34) comprising a switching module (38); an AC-to-DC converter (14); a controller (15) that is configured to control the closed or open state of the first switch (20), of the second switch (22) and of each switching module (38), the controller (15) being, additionally, configured to control the AC-to-DC converter (14) for transferring electrical energy from the DC-to-DC converter (12) to the AC network (10), or from the AC network (10) to the DC-to-DC converter (12).

Abstract: The invention is an electrical system comprising an electrical source, an electrical device (4), a capacitor (2?) and a controlled active filter (7, L) providing stabilization of the electrical quantities. The active filter (7, L) is mounted in parallel with a capacitor (2?) of reduced capacity in relation to conventional means. Active filter (7, L) is at least partly integrated within electrical device (4).

Abstract: The invention is an electrical system comprising an electrical source, an electrical device (4), a capacitor (2?) and a controlled active filter (7, L) providing stabilization of the electrical quantities. The active filter (7, L) is mounted in parallel with a capacitor (2?) of reduced capacity in relation to conventional means. Active filter (7, L) is at least partly integrated within electrical device (4).