SHIP ELECTRIC POWER INSTALLATION Russian patent published in 2019 - IPC B63H23/24 B63H21/17 

FIELD: shipbuilding.

SUBSTANCE: invention relates to shipbuilding, namely to electric power installations of vessels with frequency converters and propeller motors. Ship electrical power installation contains main diesel engines or turbines and main synchronous generators, the stators windings of which are connected to the power distribution line of the main switchboard through automatic switches, three-phase transformers, the primary winding of which is connected via a circuit breaker to the power supply line of the main switchboard, and two secondary windings connected in a star and a triangle are connected to the inputs of 12-pulse rectifiers. Two secondary windings together with autonomous voltage inverters form frequency converters, the output of a 12-pulse rectifier is connected to the input of an autonomous voltage inverter, to its output a rowing motor is connected, and also the three-phase transformer to which other ship consumers are connected. On transformer is additionally placed a pair of windings connected in a star and a triangle, that is connected to an additional 12-pulse rectifier, the outputs of the rectifiers are connected to the input of a three-level autonomous voltage inverter.

EFFECT: high efficiency is achieved.

1 cl, 1 dwg