Power supply system

摘要

This invention relates to a power supply system comprising at least two drive units (3) having two power inputs and at least one power generator (G) providing electric power at a chosen system frequency and voltage. The system comprising a transformer unit (LLC) having a first and a second connection points (1,2), at least one of which being connected to a power generator (G), wherein the two inputs of each drive unit is connected to the first and the second connection point (1,2) of the transformer unit (LLC), and the transformer unit being adapted to provide a chosen phase shift between said inputs at the chosen system frequency and voltage.

主权项

1. A power supply system comprising:
at least two drive units having two power inputs; at least one power generator providing electric power at a chosen system frequency and voltage; at least four transformer units, each of the at least four transformer units comprising first and second connection points, at least one of the first and second connection points is connected to a power generator; wherein the two power inputs of each drive unit are connected to the first and second connection points of each of the at least four transformer units; wherein the transformer unit provides a chosen phase shift between said inputs at the chosen system frequency and voltage; and wherein said at least four transformer units are connected in a ring having a chosen sequence of phase shifts in the first and second connection points between neighbouring transformer units along the ring.