Wartsila Norway As

Egil Hystad

Svein Magne Djuve

This invention relates to a power supply system comprising at least two drive units () 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 (), 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 () 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.

Power supply system

This invention relates to low loss power supply system comprising a rectifying bridge () supplying current to a motor, wherein the rectifying bridge including two AC power feed inputs PA, PB as well as at least one output for supplying power to said motor M, and wherein an YD transformer () is coupled between said inputs, said YD transformer, comprising a star and delta winding, and being adapted to provide an approximately 30&#xb0; phase shift relative to the chosen fundamental frequency between said inputs.

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Stord, Norway

Egil Hystad