公开(公告)号：US20230087549A1

公开(公告)日：2023-03-23

申请号：US17799355

申请日：2020-02-14

Applicant: AMPX Limited

Inventor： Stephen Paul Deslandes ,  Rafael David Villarroel Rodriguez ,  Václav Moulis ,  Roderick Buchanan

IPC: H02M5/458 ,  H02M7/00 ,  H02M5/10 ,  H02M1/00 ,  H02J3/18 ,  G05F1/253 ,  G05F1/30 ,  H02J3/16 ,  H01F27/02 ,  H01F27/10

Abstract: There is provided a transformer system (10) for converting a grid voltage (Vgrid) to a regulated voltage (Vregulated) and output the regulated voltage (Vregulated) to a power line (30), the transformer system (10) comprising: a first transformer (40) configured to step down the grid voltage (Vgrid) to an unregulated voltage (Vunregulated) and provide the unregulated voltage (Vunregulated) at an output of the first transformer (40); a shunt coupling transformer (50) connected in parallel with the output of the first transformer (40) and further connected to power electronics circuitry (60); and a series coupling transformer (70) connected in series with the output of the first transformer (40) and further connected to the power electronics circuitry (60). The power electronics circuitry (60) adds, via the series coupling transformer, a conditioning voltage (Vconditioning) in series to the unregulated voltage (Vunregulated) to generate the regulated voltage (Vregulated). The first transformer, the series coupling transformer and the shunt coupling transformer are housed in a single transformer tank (80), and the power electronics circuitry is housed in a power electronics enclosure (90) separate from the transformer tank. Each of the transformer tank and the power electronics enclosure comprises one or more openings (95) through which electrical connections (97) between the shunt coupling transformer (50), the series coupling transformer (70) and the power electronics circuitry (60) pass.