Control and supply system
First Claim
1. A control and supply system for subsea electrical devices comprising:
- at least one voltage supply and control device above sea level;
a subsea cable connecting said voltage supply and control device with the electrical devices;
a control and actuating device arranged in situ with the electrical devices;
a connecting line connecting said control and actuating device to the electrical devices;
wherein said voltage supply and control device comprises at least one AC/DC converter and is adapted to produce a first direct voltage that is fed into said subsea cable; and
wherein the control and actuating device comprises at least one DC/DC or DC/AC converter for converting the direct voltage transmitted by said subsea cable into a second voltage such that the second voltage can be transmitted to the electrical devices via said connecting line.
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Accused Products
Abstract
The invention relates to a control and supply system for electrical devices, comprising at least one voltage supply and control device above sea level, a subsea cable connecting said voltage supply and control device with the electrical devices, and a control and actuating device which is associated essentially in situ with the electrical devices. The aim of the invention is to improve one such control and supply system in such a way that supplies are possible over larger distances, using fewer means, obtaining higher efficiency and making better use of the system. In order to achieve this, the voltage supply and control device comprises at least one AC/DC converter for producing a direct voltage in order to feed the subsea cable, the control and actuating device is associated with at least one DC/DC or DC/AC converter for converting the direct voltage transmitted by the sub-sea cable into a direct voltage or an alternating voltage, and the voltage generated thereby can be transmitted to the electrical device via the connecting line.
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Citations
21 Claims
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1. A control and supply system for subsea electrical devices comprising:
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at least one voltage supply and control device above sea level;
a subsea cable connecting said voltage supply and control device with the electrical devices;
a control and actuating device arranged in situ with the electrical devices;
a connecting line connecting said control and actuating device to the electrical devices;
wherein said voltage supply and control device comprises at least one AC/DC converter and is adapted to produce a first direct voltage that is fed into said subsea cable; and
wherein the control and actuating device comprises at least one DC/DC or DC/AC converter for converting the direct voltage transmitted by said subsea cable into a second voltage such that the second voltage can be transmitted to the electrical devices via said connecting line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification