EP3278413A1 - Arrangement for the transmission of electrical energy - Google Patents
Arrangement for the transmission of electrical energyInfo
- Publication number
- EP3278413A1 EP3278413A1 EP15726581.0A EP15726581A EP3278413A1 EP 3278413 A1 EP3278413 A1 EP 3278413A1 EP 15726581 A EP15726581 A EP 15726581A EP 3278413 A1 EP3278413 A1 EP 3278413A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- electrical
- water
- electrical device
- arrangement according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/10—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
Definitions
- the invention relates to an arrangement for the transmission of electrical energy from a power generation plant located in a water body (offshore power generation plant) to the shore of the water body and to a method for facilitating the maintenance of such an arrangement.
- Required device which may have, for example, a switchgear, a transformer and / or a converter.
- a switchgear At high currents or voltages to be transmitted, such an electrical device has a considerable size and a considerable weight.
- a separate platform In order to be able to install such an electrical device in the power generation plant, therefore, often a separate platform is needed, which is installed at or near the power plant above the surface of the water body. The construction of such a platform is complicated and expensive.
- the invention has for its object to provide an arrangement and a method of the type mentioned above, the
- Power plant to an electrical device runs, and with a second electrical conductor, which runs from the electrical device to the shore of the water, (to transfer electrical energy from the power plant to the shore of the water,)
- the electrical device is installed in at least one housing, which is arranged at the bottom of the water body, and
- the arrangement comprises a diving means for the emergence of the at least one housing to the surface of the water body.
- the at least one housing is arranged on the bottom of the water body.
- Emerging means for the emergence of the at least one housing to the surface of the body. This will
- a maintenance which includes a repair
- the electrical device can include) of the electrical device, since for the purpose of maintenance, the at least one housing by means of the emergence means for surfacing to the surface of the
- An emergence means is a means for allowing the housing (i.e., an ascending of the housing to the surface of the body) to emerge.
- the emergence means allows a controlled emergence of the housing.
- the emergence agent can also act as one
- Emergence enabling device may be referred to.
- the arrangement can be designed such that - The housing with the electrical device is lighter than the water displaced by it, the housing is held by a bracket at the bottom of the water, and that
- Dipping means comprising a rope for allowing the casing to rise to the surface of the body in a controlled manner after the holder has been released (with the casing fixed to the rope), or
- the housing with the electrical device is heavier than the water displaced by it, and the dipping means comprises a device for introducing a fluid, in particular a gas, into the housing.
- the arrangement can be designed such that
- the housing encloses an electrical insulating means with which at least parts of the electrical device are electrically insulated.
- the electrical insulating means may be configured as an electrically insulating gas or an electrically insulating liquid.
- Insulating the electrical device can be isolated completely or partially reliable electrically.
- electrically insulating gas can be, for example, air,
- the electrically insulating liquid may be, for example, a mineral oil, an ester liquid or a silicone oil.
- the electrical device in the housing can also be electrically insulated by means of a solid insulation, in particular, the components of the electrical
- the arrangement can also be designed so that
- the electrical device comprises a power converter. This can be a power converter for the conversion of
- AC to DC (Rectifier)
- Inverter or a converter for the conversion of alternating current into alternating current (inverter).
- the arrangement can also be designed so that
- the electrical device a rectifier for
- the electrical device has a transformer
- the electrical device has a gas-insulated switch
- the electrical device an electric filter, in particular a smoothing choke and / or a
- the electrical device comprises a control unit for controlling the power converter, the rectifier, the transformer, the gas-insulated switch and / or the filter.
- the arrangement can also be designed such that
- electrical conductor (each) is an electrical cable.
- the first electrical conductor and the second electrical conductor can each be used to transmit
- the arrangement can be designed such that
- the power generation plant is a wind turbine or a solar system.
- a method for facilitating maintenance of an arrangement arranged to transfer electrical energy from one in a body of water Energy generating plant is set up to the shore of the water body,
- Power plant to an electrical device runs, and with a second electrical conductor, which runs from the electrical device to the shore of the water, (to transfer electrical energy from the power plant to the shore of the water,)
- the electrical device is installed in at least one housing, which is arranged on the bottom of the water body,
- the at least one housing by means of an emergence means for surfacing to the surface of the
- the process can proceed in such a way that
- the dipping means comprises a rope, wherein the holder is released and attached to the cable housing by means of Rope (controlled) to the surface of the water
- the method also has the advantages stated above in connection with the arrangement.
- Figure 1 shows an embodiment of a wind turbine with an electrical device, in the
- FIG. 4 each show an exemplary embodiment of a housing with an electrical device
- Figure 5 shows an embodiment of a housing
- FIG. 6 further embodiment of a
- Housing shown with a diving agent.
- FIG. 1 shows an exemplary embodiment with an arrangement 2 arranged in a body of water 1 for the transmission of electrical energy and with a power generation plant 3.
- a power plant is also referred to as an offshore power plant. In the embodiment, it is in the
- the water 1 is a sea, for example, the North Sea.
- a first electrical conductor 7 in the form of a first electrical cable 7 extends to an electrical
- a second electrical conductor 13 in the form of a second electrical cable 13 extends to a bank 15 of the water body.
- the second electrical conductor 13 extends to a further electrical device 17, which is arranged outside of the water body 1 onshore (onshore).
- Electrical device 17 may be, for example, a high-voltage DC transmission station or a power converter, which with an electric
- Energy transmission network are connected.
- components of the electrical device 9 are installed in five housings 20 - 24, which are each arranged on the base 11 of the body of water 1.
- the first housing 20 encloses a gas-insulated switch (GIS)
- the second housing 21 encloses a
- the third housing 22 encloses a
- the fourth housing 23 encloses a gas-insulated switch and the fifth
- Housing 24 encloses a control unit for controlling the gas-insulated switch, the transformer and / or the
- the housings 20, 21, 22 and 23 are by means of electrical
- Device 9 thus divided into several (here: five) housing 20 to 24.
- the housing 9 thus divided into several (here: five) housing 20 to 24.
- electrical device 9 also be divided into a different number of housings; It may also be the entire electrical device 9 incorporated in a single housing.
- Device 9 is arranged below the surface 27 of the body of water 1.
- the electrical device 9 is located at a considerable depth below the surface 27 of the water body 1. This depth is at least 25 m. This ensures that the electrical equipment is not affected by storms or by waves and that shipping on the water 1 is not or only slightly hampered.
- 2 shows an embodiment of a housing 201 is shown, in which a further electrical device 203 is installed.
- the further electrical device 203 has a transformer 205, a rectifier 207 (AC-DC converter), an electrical filter 209 and a
- Control unit 211 on.
- the control unit 211 controls the transformer 205, the rectifier 207 and / or the
- control unit 211 also provides a protection function (protection) for the electrical
- the electrical filter 209 has a smoothing choke 213 and / or a smoothing capacitor 215.
- the transformer 205 is electrically connected to an AC power terminal 217; the electric filter 209 is electrically connected to a DC voltage terminal 220.
- the electrical device 203 converts one to the AC voltage terminal 217
- an electrical insulating means in the housing 201 is located in the housing 201, an electrical insulating means in the
- Embodiment is an electrically insulating gas 222 (for example, nitrogen).
- the housing 201 with the electrically insulating gas 222 for example, nitrogen.
- Electrical device 203 may also be referred to as a "power box”.
- Housing 301 shown in which a further electrical device 303 is installed.
- the electrical device 303 has a gas-insulated switch 305 for
- the filter 311 has a
- the control unit 314 controls the gas-insulated switches 305 and 313, the transformer 307, the rectifier 309
- the gas-insulated switch 305 is electrically connected to an AC voltage terminal 320, the gas-insulated switch 313 is connected to a
- the electrical device 303 built into the housing 301 converts AC current (which is input to the AC voltage terminal 320) into DC current that is applied to the
- DC voltage terminal 322 is output.
- an electrical insulating means in the
- Embodiment is an electrically insulating liquid 324.
- the flow of energy can also be done in the opposite direction, that is, these devices can each also DC, at the DC voltage terminals 220 and 322nd
- FIG. 4 shows a further exemplary embodiment of a
- the electrical device 403 has a first gas-insulated switch 405 for AC voltage, a transformer 407, a second gas-insulated switch 409 for AC voltage and a control unit 411.
- the control unit 411 controls the first gas-insulated switch
- the first gas-insulated switch 405 is electrically connected to a first AC voltage terminal 413
- the second gas-insulated switch 409 is electrically connected to a second AC voltage terminal 415.
- the electrical device 403 transformed
- AC voltage at the first AC voltage port 413 is applied to a higher voltage level by means of the transformer 407 and outputs this step-up AC voltage at the second AC voltage terminal 415.
- the flow of energy can also take place in the opposite direction, that is, the energy is from the second
- the housing 502 with the electrical device is lighter than the water displaced thereby, so that the housing 502 would float (rise) to the surface 27 of the body of water 1.
- the housing 502 is attached to the base 11 of the body 1 by means of a holder 504.
- the housing 502 is attached to a cable 506, the cable 506 on a
- Winch 508 is rolled up.
- the housing 502 is located at the bottom of the water, as shown in FIG. Should, however, at the electrical device, for example
- the holder 504 is released, whereupon the housing 502 rises to the surface 27 of the body of water 1 out.
- the housing 502 is controlled to the surface 27th
- the cable 506 and the winch 508 are here
- Emergence means a controlled emergence of the
- Floats can be relative (for example, from a ship) simply the electrical equipment to be serviced / repaired. Once the maintenance / repair work on the electrical equipment is completed, the housing with the electrical device is pulled down by means of the cable 506 to the bottom 11 of the water. Then that will
- the housing 601 with the electrical device is heavier than the water displaced by it, so that the housing 601 with the electrical device
- Embodiment of Figure 5 is necessary. In case of a necessary maintenance / repair the housing 601 for
- the housing 601 is connected by means of a fluid line 603 with a device 605 for introducing a fluid into the housing 601.
- the fluid may in particular be a gas
- the device 605 is a device for introducing a gas into the housing 601 (eg a pressurized gas container 605, in particular a compressed gas cylinder 605)
- the fluid line 605 is a gas line 603.
- Emergence means a controlled emergence of the
- the housing 601 In normal operation, the housing 601 is located at the bottom 11 of the body of water 1, as shown in FIG. In a necessary maintenance / repair, a fluid is introduced into the housing 601 by means of the device 605, whereupon in the housing 601 existing liquid (for example Seawater) is forced out of the housing by the fluid. As a result, the housing 601 is connected to the electrical
- the housing 601 may also be attached to a cable, as shown in Figure 5 in connection with the cable 506 and the winch 508. Also regarding the necessary separation of the
- each housing may have an emerging means
- the housings are each as a waterproof housing
- the housings with the electrical device can each also be referred to as a "power box.”
- the electrical device arranged at the bottom of the body of water can also be referred to as a "subsea power station”.
- Device that can not be arranged within the power generation plant, is located inexpensively under water at the bottom of the water body. This is more cost effective than building an additional platform above the water surface for the electrical equipment (eg, a platform on a wind turbine tower or a separate platform). As a result, for example, no reinforced foundations of the wind turbine are required or, of course, no foundations are needed for a separate platform. This significantly reduces the costs for design, manufacture, assembly, transport and installation (offshore installation).
- the electrical equipment eg, a platform on a wind turbine tower or a separate platform.
- housings Operating and auxiliary systems may be required) are arranged in one or more housings, these housings can be made uniform in terms of their size and / or their electrical connections. For electrical insulation of the electrical device, the housing can partially or completely with a
- Be filled insulating liquid and / or an insulating gas are advantageousously, arranged in the housing or the components of the electrical device
- Power generation plants are used: for example, a solar system, which generates electrical energy in the form of DC / DC, or a
- Tidal power plant An arrangement and a method has been described with which low-cost electrical energy can be transmitted from an offshore power generation plant to the shore of a body of water.
- cost-effective maintenance / repair of the electrical device is possible because the housing or the housing are brought with the electrical device in a simple manner from the bottom of the water to the surface of the water in order to carry out the repair / maintenance in a simple and cost-effective manner.
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2015/061877 WO2016188586A1 (en) | 2015-05-28 | 2015-05-28 | Arrangement for the transmission of electrical energy |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3278413A1 true EP3278413A1 (en) | 2018-02-07 |
Family
ID=53276864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15726581.0A Ceased EP3278413A1 (en) | 2015-05-28 | 2015-05-28 | Arrangement for the transmission of electrical energy |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3278413A1 (en) |
CN (1) | CN209071964U (en) |
WO (1) | WO2016188586A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2610799A1 (en) * | 1975-03-20 | 1976-10-07 | Francisco Arnold Richard | DEVICE AND METHOD FOR MANUFACTURING AND LAYING UNDERWATER PIPES |
US6239363B1 (en) * | 1995-09-29 | 2001-05-29 | Marine Innovations, L.L.C. | Variable buoyancy cable |
US6242688B1 (en) * | 1996-10-28 | 2001-06-05 | Asea Brown Boveri Ab | Sea electrode for a high voltage direct current transmission system |
WO2007086722A1 (en) * | 2006-01-27 | 2007-08-02 | Alpha Perisai Sdn. Bhd. | Electrical power transmission system |
US20110141773A1 (en) * | 2010-08-05 | 2011-06-16 | General Electric Company | Hvdc connection of wind turbine |
JP2011234511A (en) * | 2010-04-27 | 2011-11-17 | Toshiba Corp | Power generating/transforming equipment |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4110994A (en) * | 1976-01-26 | 1978-09-05 | Poseidon Marketing And Development Co. | Marine pipeline |
US6030145A (en) * | 1997-12-10 | 2000-02-29 | Lucent Technologies Inc. | Articulated underwater cable riser system |
US7360968B2 (en) * | 2004-01-30 | 2008-04-22 | Heerema Marine Contractors Nederland B.V. | Method and device for anchoring a pipeline |
US7025533B1 (en) * | 2004-09-21 | 2006-04-11 | Kellogg Brown & Root, Inc. | Concentrated buoyancy subsea pipeline apparatus and method |
GB0820099D0 (en) * | 2008-11-04 | 2008-12-10 | Rolls Royce Plc | Electrical connection to watercraft |
EP2793333A1 (en) * | 2011-12-12 | 2014-10-22 | Fundacion Tecnalia Research & Innovation | System and method for interconnecting umbilicals for conveying energy, fluids and/or data in a marine environment |
DE102012017379A1 (en) * | 2012-09-01 | 2014-03-06 | Strabag Offshore Wind Gmbh | A method for laying an offshore cable from a wind turbine to a destination and offshore wind turbine |
-
2015
- 2015-05-28 WO PCT/EP2015/061877 patent/WO2016188586A1/en unknown
- 2015-05-28 CN CN201590001531.0U patent/CN209071964U/en not_active Expired - Fee Related
- 2015-05-28 EP EP15726581.0A patent/EP3278413A1/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2610799A1 (en) * | 1975-03-20 | 1976-10-07 | Francisco Arnold Richard | DEVICE AND METHOD FOR MANUFACTURING AND LAYING UNDERWATER PIPES |
US6239363B1 (en) * | 1995-09-29 | 2001-05-29 | Marine Innovations, L.L.C. | Variable buoyancy cable |
US6242688B1 (en) * | 1996-10-28 | 2001-06-05 | Asea Brown Boveri Ab | Sea electrode for a high voltage direct current transmission system |
WO2007086722A1 (en) * | 2006-01-27 | 2007-08-02 | Alpha Perisai Sdn. Bhd. | Electrical power transmission system |
JP2011234511A (en) * | 2010-04-27 | 2011-11-17 | Toshiba Corp | Power generating/transforming equipment |
US20110141773A1 (en) * | 2010-08-05 | 2011-06-16 | General Electric Company | Hvdc connection of wind turbine |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016188586A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2016188586A1 (en) | 2016-12-01 |
CN209071964U (en) | 2019-07-05 |
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