Ship direct current distribution system with conversion of electrical energies

Abstract

The invention discloses a ship direct current distribution system with conversion of electrical energies. The ship direct current distribution system comprises at least two sets of redundant direct current distribution subsystems and an important load distribution box, wherein power supply is acquired from a generator or a reserve storage battery; each set of direct current distribution subsystem comprises a direct current main distribution box and a distribution unit with conversion of electrical energies; the direct current main distribution box is used for supplying power to different electric loads through the distribution unit with conversion of electrical energies; the important load distribution box is automatically switched between the direct current distribution subsystems and is used for uninterruptedly supplying power to the important load. The ship direct current distribution system provided by the invention can meet the requirements of power supply and control for different electric area loads; direct current electric transmission and distribution electrical energy are applied to the direct current distribution system, so that the power supply contact between the distribution boxes is reduced; the power supplies of the distribution boxes are independent from each other and the distribution network is simplified; the online insulating monitoring for power distribution loop of the whole system is realized; the safe and reliable running of the distribution system is benefited; layered distribution and drawer design are applied to the structures of the distribution boxes; the function integration level is high; the space usage is less; the control is conveniently performed.

Description

technical field [0001] The invention relates to the field of ship power systems, in particular to a power distribution system for ship DC power transmission, distribution, transformation and control. Background technique [0002] At present, the ship's power distribution system is mainly an AC power distribution system. The electric energy generated by the generator is converted into electric energy of different electrical systems through a transformer, and the general load or motor is supplied by each AC distribution board and feeder cable. There are many feeder cables in the AC power distribution system, and the layout is difficult, and the frequency, phase and power factor must also be considered, so the control is complicated. [0003] In recent years, the research on DC power distribution system has attracted more and more attention. The power generated by the generator is transmitted and distributed by the DC power distribution bus, and each power consumption area or l...

AI Technical Summary

Problems solved by technology

There are many types of ship load equipment, with various AC and DC voltage levels. In order to meet the power supply needs of various electrical loads, the DC power distribution system is also equipped with power conversion equipment. The distribution cabinet of the power distribution system is separated from the power conversion equipment. There are also problems such as large space occupation and many cables interspersed

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