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Arrangement related to offshore cable system

A technology for transmitting cables and circuits, which is applied in the direction of circuit devices, control/regulation systems, electrical components, etc., and can solve problems such as limiting the maximum distance

Inactive Publication Date: 2014-08-27
VETCO GRAY SCANDINAVIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Cable resonance effects will also limit the maximum distance because too long distances will cause cable resonance in the transmission frequency range to form a series or parallel impedance "blocking" of power transmission at the transmission line resonance frequency

Method used

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  • Arrangement related to offshore cable system
  • Arrangement related to offshore cable system
  • Arrangement related to offshore cable system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0073] according to figure 1 Description of Selected Portions of Prior Art Embodiments of

[0074] refer to figure 1 , illustrates in a schematic diagram a submarine cable exposing system "S" for transmitting power from a power supply unit 2 with a variable speed drive 2a to a consumer unit 3 .

[0075] Here is shown a system "S" adapted to transmit electric power from said power supply means 2 in the form of variable speed drives 2a to A consumer 3 in the form of an electric motor 3a or the like is employed.

[0076] The system shows circuits and elements for compensating and / or reducing the resulting resonance frequency, depending on the speed drive 2a; the transmission line 1 in the form of a cable 1a utilized; the length of the cable utilized; And adapted to any transformer unit 4, 5 of said transmission line 1; said consumer 3; and / or selected frequency; circuit 11 is adapted to include the use of resistive elements, capacitive elements and / or inductive elements and ...

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Abstract

The invention relates to an arrangement (10) related to an electric power distribution system in the form of a marine system (S) adapted to receive electricity from a power transmission line (1) at least partially in the form of a marine cable section (1a' A power supply (2) in the form of a variable speed drive (2a) transmits electric power to a consumer (3), a circuit (11) for compensating and / or reducing the resulting resonance frequency, which depends on the speed of the drive (2a), The transmission cable (1a) utilized and the length of said cable, any transformer unit (4, 5) adapted to said transmission line (1), said consumer and / or selected frequency, said circuit (11) Adapted to include one or more primary parameters (resistive, capacitive and / or inductive related elements 11a, 11b, 11c). The invention discloses the use of a control device (8) associated with said electrical circuit (11), said control device being adapted by means of Or the current value changes the one or more dynamic elements to control the one or more dynamic elements (11a, 11b, 11c) corresponding to one or more of the primary parameters.

Description

technical field [0001] The present invention relates generally to power distribution systems and more particularly focuses on arrangements for such power distribution systems. [0002] The present invention applies to an arrangement within an offshore cable system, preferably a submarine cable system. [0003] The arrangement according to the invention is adapted to provide dynamic resonance tuning and voltage regulation for adaptation to transient load conditions and / or stabilization. [0004] The cable system is typically a three-phase power transmission system, which typically uses one or more transformer units to transform a first voltage value to a second, higher voltage value or vice versa. [0005] The system is thus adapted to power transmission and is illustrated in this application with a power supply in the form of a variable speed drive and a consumer in the form of an electric motor or the like. [0006] The system is based on the use of transmission lines at le...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18G05F1/12H02J3/22
CPCH02J3/24Y02E40/40H02J3/01H02J5/00H02J3/241
Inventor S·罗克P-T·比约冈E·豪格斯
Owner VETCO GRAY SCANDINAVIA
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