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Fault protection system for a power system of dynamically positioned vessel

A power system and fault protection technology, which is applied in the direction of automatic disconnection of emergency protection devices, protection against overcurrent, ship propulsion, etc., can solve problems such as power failure of the ship's power system, loss of ship position, loss, etc.

Active Publication Date: 2013-10-30
SIEMENS ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] It is generally not possible to operate such a system with interconnected power system sections (i.e. with connected bus bar connections) because a fault such as a short circuit or generator failure would normally result in a complete blackout of the ship's power system
Such a loss of power would result in loss of the vessel's position, which could be harmful; it could also result in oil spills or loss of life

Method used

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  • Fault protection system for a power system of dynamically positioned vessel
  • Fault protection system for a power system of dynamically positioned vessel
  • Fault protection system for a power system of dynamically positioned vessel

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Embodiment Construction

[0052] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the following description of the embodiments is given for the purpose of illustration only and should not be taken in a limiting sense.

[0053] It should also be mentioned that the drawings should only be considered as schematic representations and that the various elements in the drawings are not necessarily drawn to scale relative to each other. Rather, the representation of the various elements is chosen so that the function and general purpose thereof will be apparent to those skilled in the art. It should also be understood that the coupling of each physical or functional unit shown in the drawings and described in the following does not necessarily need to be directly connected or coupled, but may also be indirectly connected or coupled, that is to say, with one or more connection or coupling of an additional int...

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Abstract

A fault protection system for a power system of a dynamically positioned vessel is provided. The power system is separated into two or more power system sections, each comprising a bus section of a power distribution bus. The bus sections are connected by bus ties in a ring configuration. Each bus section comprises a connection to a generator and a connection to a thruster drive of the dynamically positioned vessel. The fault protection system comprises a fault isolation system which includes for each power system section a bus tie circuit breaker for breaking the connection provided by the bus tie.

Description

technical field [0001] The invention relates to a fault protection system for a power system of a dynamically positioned ship, a power system for a dynamically positioned ship, and a corresponding method. Background technique [0002] Dynamic positioning systems may be provided for floating vessels such as semi-submersible submarines, drillships, floating production storage and offloading (FPSO) vessels. Such dynamically positioned vessels may use electrically driven propellers (ie, electric thrusters) to maintain position during oil and gas drilling operations, station keeping, anchoring, port maneuvers, and the like. For certain types of operations where there is an increased risk of crude oil contamination, loss of life, collisions, etc., it must be ensured that the position of the vessel is maintained so as to minimize these risks. Therefore, the integrity and fail-safe operation of the electrical system powering the thrusters of the dynamically positioned vessel is of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26
CPCH02H7/26H02J4/00B63J3/00H02H3/08B63H23/24B63J2003/002B60R16/03B63H25/42H02H3/081H02H3/28
Inventor R.B.安德森S.布利斯塔德I.豪卡斯G.科尼希D.拉丹S.O.塞特姆斯达尔
Owner SIEMENS ENERGY AS
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