Patent ID: 11958578
Assignee: KONGSBERG MARITIME AS
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A power supply system comprising:
at least two segregated power sections, each of the at least two segregated power sections comprising:
a main redundancy group comprising: a main switch board; and
at least one of:
a power generator adapted to generate electrical power to the main switch board; and
a power consumer drawing power from the main switch board;

a bus-tie connecting the main switch boards of the main redundancy groups;
at least two segregated directly powered thruster redundancy groups, each of the at least two segregated directly powered thruster redundancy groups being connected to and receiving AC power from one of the main switch boards through an AC interconnection;
wherein each of the at least two segregated directly powered thruster redundancy groups comprises:
a thruster drive connected to the main switch board of a corresponding one of the main redundancy groups, wherein the thruster drive comprises a DC/DC type breaker; and
an AC/DC converter;

wherein a number of AC interconnections to the main switch boards corresponds to a number of the at least two segregated directly powered thruster redundancy groups;
an indirectly powered thruster redundancy group comprising a thruster drive and a thruster, and connected via a pair of DC interconnections to two of the at least two segregated directly powered thruster redundancy groups;
wherein each of the pair of DC interconnections terminates at one of the at least two segregated directly powered redundancy groups and comprises a DC/DC type breaker for at least one of control and protection of the respective one of the pair of DC interconnections; and
wherein the indirectly powered thruster redundancy group is powered only through at least one DC interconnection of the pair of DC interconnections from at least one of the two of the at least two segregated directly powered thruster redundancy groups.