Power distribution systems

A power distribution system and power supply technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve offline problems and achieve high impedance effects

Active Publication Date: 2014-04-30
GE ENERGY POWER CONVERSION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also sometimes generators G1...G4 may be offline due to critical failures or for safety reasons

Method used

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Examples

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Embodiment Construction

[0114] exist figure 2 A first marine power distribution and propulsion system 20 according to the invention is shown in . While the following description focuses on a system for a vessel, it will be readily understood that other power distribution systems may be implemented in a similar manner.

[0115] Integral nautical power distribution and propulsion system 20 similar to figure 1 The system shown, and it will be understood that any suitable number and type of ac generators, propulsion motors, etc. may be used. Similar components are provided with the same notation or reference number.

[0116] A plurality of ac generators G1...G4 provide ac power to a bus 2 carrying a fixed frequency distribution voltage (eg 690V, 60Hz, but other system voltages may be used). Generators G1...G4 are associated with diesel engines D1...D4, but other types of prime movers could be used.

[0117] The electric propulsion motors M1 . . . M4 are connected to the busbar 2 by means of interven...

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Abstract

The present invention provides a power distribution system such as a marine power distribution and propulsion system (20). The system includes an ac busbar (2) and a plurality of active front end (AFE) power converters (4, 22). Each AFE power converter (4, 22) includes a first active rectifier / inverter (6) connected to the busbar (2) and a second active rectifier / inverter (8) connected to an electrical load such as an electric propulsion motor (M1...M4). Power sources (PS1...PS3) are connected to the dc link (24) of the AFE power converters (22) and can be operated under the control of a power management controller or power management system (PMS).

Description

technical field [0001] The present invention relates to power distribution systems, and in particular to systems which can be used on board ships or offshore vessels and which incorporate an additional power source to provide power when the main generator is inoperable. Such a system could be integrated into conventional marine power distribution and propulsion systems. It will however be appreciated that the invention is not limited to use on board ships or offshore vessels, but that the invention may also be applied eg to onshore power distribution systems. [0002] The term "vessel" is intended to include boats, drilling rigs and any other surface propelled vessel or platform or submersible (submarine) vessel. Background technique [0003] Power distribution systems are well known. exist figure 1 In a typical arrangement of a marine power distribution and propulsion system shown in a, a number of ac generators G1...G4 provide ac power to a busbar or switchboard 2 carry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J4/00H02J3/005H02J3/00H02J7/0045H02J3/007
Inventor S.P.哈森N.J.克拉克
Owner GE ENERGY POWER CONVERSION TECH
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