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Power distribution systems

A technology of power distribution system and distribution system, which is applied in the direction of circuits, electric switches, collectors, etc.

Inactive Publication Date: 2008-04-23
GE POWER CONVERSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While these LVDC systems derive their DC current from MVAC current sources through current-limited power electronics, they rely on DC circuit breakers (DCCBs) to interrupt considerable fault currents

Method used

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Embodiment Construction

[0111] While the following description relates to a power distribution system for marine applications, and in particular to a power distribution system well suited for naval vessels and submarines, it will be readily understood that similar layout techniques and control methods can be used for other Types of power distribution systems, such as ground-based or aircraft-based systems.

[0112] The basic layout of the power distribution system according to the present invention will now be explained with reference to FIG. 2 . It should be understood that all inputs, outputs, terminations and interconnections of Figure 2 are of the bipolar DC type.

[0113] A first propulsion power generation system (PPGS) comprises a turbine 1 driving a generator 2 to supply an output converter 3 . Similarly, the PPGS includes a generator 11 driving a generator 11 to supply power to an output converter 12 . A first propulsion drive system (PDS) comprises a propeller 6 driven by a propulsion mot...

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Abstract

The present invention provides a power distribution system that can be used in naval ships and submarines. The power distribution system includes a first power generation system including at least one power source (13,14,15) for supplying power to a first service distribution system. The first service distribution system includes at least one dc distribution busbar (25) for carrying a distribution voltage and a distribution current and at least one switchboard (16) that includes protective switchgear with contacts. A zonal power distribution sub-system is also provided and includes a zonal power supply unit (23) for supplying power to at least one electrical load and a zonal energy store (22) connected to the at least one switchboard (16) of the first service distribution system for supplying power to the zonal power supply unit (23). The at least one power source (13,14,15) is regulated according to a power source foldback and stabilising characteristic and a power source starting characteristic. The at least one electrical load is regulated according to a load shedding and stabilising characteristic.

Description

technical field [0001] The present invention relates to an electrical power distribution system, and more particularly to an "intelligent" electrical power distribution system that can be used in marine electrical and propulsion systems. The power distribution system enables the ship's power and propulsion systems to achieve maximum power density, efficiency and stability, and facilitates future technology embedding with the help of modular processing solutions and standard interfaces. Background technique [0002] In traditional marine power and propulsion systems utilizing full electric propulsion (FEP), fault current magnitude-time discrimination is used to allow protective switching devices to interrupt overcurrent faults in specific subcircuits while minimizing physical damage to all other subcircuits . It is assumed that such a FEP system utilizes the "plant principle" in which the aim is to adapt the power generation capacity drawn into the grid at any given time to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/00H02J1/10H02J1/14H02J7/34H02H7/26
CPCB63H21/20H02J4/00B63H23/24H02H7/268H01H33/596H02J1/14H02J2310/42H02H3/025H02H3/06H02J1/00H02J11/00
Inventor 艾伦·戴维·克兰
Owner GE POWER CONVERSION
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