EP4118723A1 - Seekabel für verlegung auf gewässerboden - Google Patents
Seekabel für verlegung auf gewässerbodenInfo
- Publication number
- EP4118723A1 EP4118723A1 EP21706856.8A EP21706856A EP4118723A1 EP 4118723 A1 EP4118723 A1 EP 4118723A1 EP 21706856 A EP21706856 A EP 21706856A EP 4118723 A1 EP4118723 A1 EP 4118723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- submarine cable
- cable
- submarine
- elevation
- outer jacket
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/36—Arrangements for transfer of electric power between AC networks via high-voltage DC [HVDC] links; Arrangements for transfer of electric power between generators and networks via HVDC links
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine cables
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Definitions
- the application relates to a submarine cable, in particular a high-voltage or medium-voltage submarine cable, comprising at least one phase conductor, set up to transmit electrical energy, and at least one outer jacket surrounding the at least one phase conductor.
- the application relates to an offshore wind farm, a method for producing a submarine cable, a method for laying a submarine cable and a use of a submarine cable.
- the inner cabling network of an offshore wind farm is formed by a large number of submarine cables.
- a submarine cable is used to transmit energy in an offshore wind farm.
- a submarine cable can connect an offshore wind turbine and an offshore transformer station in order to transmit the electrical energy generated by the offshore wind turbine from the kinetic energy of the wind to the offshore transformer station.
- An offshore transformer station can in turn be connected to an onshore transformer station of the offshore wind farm via at least one further submarine cable in order to transmit electrical energy to it and, for example, to enable the electrical energy to be fed into a public electricity network (not part of the internal cabling network) .
- a submarine cable is buried between two devices of the offshore wind farm in the bottom of the body of water (in particular a sea floor) so that the submarine cable is safely and invariably arranged between the devices during operation.
- a submarine cable requires a large number of ship activities with corresponding costs.
- the application is therefore based on the object of providing a submarine cable for energy transmission which enables the submarine cable to be installed more simply and, in particular, with less effort
- the submarine cable is in particular a high-voltage or medium-voltage submarine cable.
- the submarine cable comprises at least one phase conductor set up to transmit electrical energy.
- the submarine cable comprises at least one outer jacket surrounding the at least one phase conductor and having an outer jacket surface.
- the outer jacket surface is a structured jacket surface.
- the application does not provide a submarine cable with a smooth or profiled outer jacket surface, but rather a submarine cable with an outer jacket with a structured or profiled outer jacket surface.
- a submarine cable with a smooth surface if it would be laid on the bottom of a body of water is affected by a current of the bed of water in an installation state of the submarine cable (i.e.
- the freedom of movement of the submarine cable is at least reduced.
- the constant movements are at least reduced by the structured surface and flushing is at least made more difficult, so that a tensile force exerted on such a submarine cable is significantly reduced.
- digging into the bottom of the water is therefore no longer necessary. The installation effort and the corresponding costs are reduced, in particular without increasing the risk of failure of the submarine cable.
- the submarine cable according to the registration is suitable for laying on the bottom of a body of water (e.g. seabed).
- the submarine cable can electrically connect two offshore devices (e.g. an offshore wind farm) to one another.
- the submarine cable can preferably be a power cable, in particular in the form of a medium-voltage submarine cable (at least 10 kV) or in the form of a high-voltage submarine cable (at least 60 kV).
- the power capacity of the submarine cable according to the application is in particular between 3 MW and 2.5 GW.
- a submarine cable For energy transmission, a submarine cable according to the application has at least one electrically conductive phase conductor (e.g. made of copper or aluminum). It goes without saying that two or more phase conductors can be provided. In a preferred embodiment, exactly three phase conductors are provided. In particular, this optimizes the transmission of energy via a submarine cable.
- An electrically conductive phase conductor can be formed from one or more electrically conductive elements.
- a submarine cable according to the application has an outer sheath. It goes without saying that a submarine cable can preferably comprise further cable elements, as will be explained in the further course of the description.
- the outer jacket surrounds the at least one phase conductor, in particular indirectly. This means in particular that further layers can be arranged between the outer jacket and the phase conductor.
- the outer sheath in the registration area serves in particular to protect the submarine cable elements.
- the outer jacket has an outer jacket surface and in particular an inner jacket surface. The outer jacket surface is turned outwards and, when installed, makes contact in particular with the environment (for example water and / or body of water).
- the inner jacket surface faces in the direction of the at least one phase conductor and in particular makes contact with an inner layer of the submarine cable.
- the outer jacket surface is not a smooth or profile-free jacket surface, but a structured jacket surface.
- a structured jacket surface means in particular that the (outer) jacket surface has a profile and, in particular, is uneven (in particular in comparison to a smooth or flat jacket surface).
- the outer sheath can be formed from HDPE (high density polyethylene).
- HDPE high density polyethylene
- HDPE high density polyethylene
- the structure on the outer jacket surface can preferably be a regular or periodic structure, that is to say in particular a specific pattern. Such a structure is particularly easy to manufacture and gives the submarine cable specific and consistent structural properties.
- the structure on the outer jacket surface can be an irregular or non-periodic (eg random) structure.
- the structured jacket surface can be formed by a base area and a plurality of elevations which protrude from the base area. The base can in particular form the lowest point in the structure or the profile. The at least two elevations extend, in particular, starting from this base area in a radial direction. In particular, the result is a surface with a large number of unevenness.
- a cable extends in the axial direction.
- a radial direction is perpendicular to the axial direction.
- a circumferential direction is defined perpendicular to the radial direction and perpendicular to the axial direction. Accordingly, a jacket surface of a submarine cable extends along the circumferential direction.
- the outer surfaces of the elevations or unevenness can be formed as desired.
- at least one elevation can at least partially have a concave outer surface.
- at least one elevation can at least partially have a convex outer surface.
- at least one elevation can at least partially have a planar outer surface.
- the distance (also called the depth of the structure or of the profile) between the base (i.e. in particular the deepest point of the structure) and a tip of an elevation can be at least 0.5 cm, preferably at least 1 cm ( and at most 10 cm, preferably at most 4, preferably at most 1.5 cm).
- the surface structure considerably restricts the freedom of movement of an installed submarine cable.
- such structures can be easily manufactured.
- the distance can preferably depend on the diameter of the submarine cable. The larger the diameter of the submarine cable, the greater the distance can be. In other words, as the diameter increases, the distance can increase accordingly.
- At least one elevation can be an axially extending elevation.
- the elevation has an axial extension along the axis of the submarine cable
- Submarine cables extend over at least a section of the submarine cable, for example over the entire submarine cable.
- the outer cross-sectional shape of the submarine cable remains essentially the same at least over the entire (axial) length of a section.
- web-shaped elevations can be provided.
- the cross-sectional area of an elevation can be essentially triangular.
- flat surfaces in the case of a triangular shape, it is also possible to provide convex or concave surfaces or a combination in the case of a cross-sectional area of an elevation.
- the leg opposite the tip of the elevation can be curved (depending on the radius of the submarine cable).
- At least one elevation can be an elevation running in the circumferential direction.
- an elevation (with a constant distance) can run around the entire circumference of the outer jacket.
- grooves (the lowest point of which can form the base area) or the like can be embossed in the outer jacket, for example by means of a stamp.
- a submarine cable can have at least two differently formed jacket surfaces. Different In other words, the submarine cable can have at least a first section and at least one further section, at least one of these sections having a structured outer jacket surface.
- the further section can preferably have a smooth outer jacket surface.
- the further section can in particular be adapted for the route between an electrical connection of an offshore device and the bottom of the water.
- the first section is adapted for contact with a body of water and the further section for exclusive contact with water.
- the shape of the cross-sectional area in the further section can be oval (compared to the essentially circular basic cross-sectional area (that is, the area without the elevations) of the first section).
- At least one elevation at the tip of the elevation can have an extension element.
- the extension element can have a rod-shaped cross section.
- the extension element can be plate-shaped or rod-shaped (in cross section).
- an extension element can significantly reduce constant movement, such as wobbling back and forth. An even more stable position of the submarine cable in an installation state can be achieved.
- the structure of the outer jacket surface should be different depending on the type of seabed or the nature of the soil in a laying area of the submarine cable, i.e. the area of the bed of water on which the submarine cable is to be laid.
- Exemplary and non-exclusive types of water bodies are soft soils, such as sandy soils, and hard soils, such as rock or stone soils.
- the submarine cable can have two elevations, each with an extension element arranged at the respective tip between 170 ° and 190 °, preferably of substantially 180 °.
- the extension elements are arranged on opposite sides of the submarine cable. Further elevations (e.g. in the form of spikes or the like, but without extension elements) can preferably be arranged.
- Such a submarine cable is particularly suitable for a soft subsoil, such as a sandy bottom.
- the elevations can preferably have a distance (between tip and base) between 0.5 cm and 1.5 cm.
- An extension element can preferably have a length of! cm and 10 cm, particularly preferably between 1 cm and 4 cm.
- the submarine cable when the submarine cable is installed, half of its circumference of the submarine cable can be sunk into the subsurface and the extension elements rest (flat) on the bottom of the water. In this case, the submarine cable offers particularly little contact surface for water flowing along it. A stable and low-movement installation can be ensured.
- the submarine cable can have four elevations (adjacent in the circumferential direction), each with one arranged at the respective tip
- An angle can be formed between two extension elements that are adjacent in the circumferential direction, in particular between each extension element that is adjacent in the circumferential direction . between 45 ° and 135 °, preferably of substantially 90 °.
- Such a submarine cable is particularly suitable for a hard seabed, such as stone.
- the elevations can preferably have a distance (between tip and base) between 0.5 cm and 1.5 cm.
- An extension element can preferably have a length of 1 cm and 10 cm, particularly preferably between 1 cm and 4 cm.
- Two extension elements which are adjacent in the circumferential direction, serve in particular to support the submarine cable on the seabed in an installation state. Since it is not possible to control how the submarine cable ends up on the seabed during laying, the submarine cable has in particular exactly four extension elements in the circumferential direction, which preferably each have an angle of substantially 90 ° to the extension element adjacent in the circumferential direction.
- the outer sheath can be an outer sheath produced only by an extrusion process.
- the outer sheath can be an outer sheath produced only by an extrusion process.
- an extruder with a shaping opening can be used, the shaping opening being shaped in such a way that a certain structured outer jacket surface is formed.
- the outer jacket can be an outer jacket produced by a combined extrusion and stamping process. This means in particular that at least a section of the submarine cable has an outer sheath that was applied by an extrusion and stamping process.
- an outer jacket that is initially extruded on can be deformed by a punch in such a way that a certain structured outer jacket surface is formed.
- a groove-shaped structure can be introduced using a correspondingly shaped punch.
- a submarine cable can preferably have three phase conductors in order to transmit energy (or power or current).
- a phase conductor can be formed in one piece, but also in several pieces.
- a phase conductor can be either round or sector-shaped, as well as single-wire or multi-wire.
- Exemplary and non-final phase conductors are segment conductors (also called “segmented conductor") with at least two segments, stranded phase conductors (also called “stranded conductor”), pressed (or compressed) phase conductors (also called “compressed round conductor”), profiled phase conductors (also called “profiled conductor”) and compressed phase conductors (also called “compacted conductor”).
- An (inner conductive) layer (non-metallic, conductive sheath) (e.g. as a phase conductor screen), then an insulation layer (e.g. extruded as a single layer) (also known as an insulation screen) and then an (outer) can advantageously be placed around a phase conductor Conductive) layer (made of a non-metallic sheath in combination with a metal part) can be arranged, for example, as a core protective layer (also called core sheath).
- Metallic shielding can additionally be provided between the core protective layer and the insulation layer.
- an optical phase conductor cable can optionally be provided.
- the optical phase conductor cable can be coupled to a temperature detection device in order to monitor the temperature in the submarine cable. It can also be used for data transmission.
- the submarine cable In order to obtain a certain cable cross-section (e.g. essentially circular or oval-shaped, as described above) for the submarine cable or a certain section, the submarine cable usually has a filler material (also called fillers).
- a filler material also called fillers
- a so-called bedding layer can be arranged between at least one reinforcement layer and the elements (described above) arranged inside the submarine cable, in order to provide in particular a protective layer between the at least one reinforcement layer and the inner cable elements.
- a bedding layer can also be arranged between two reinforcement layers (if present) and between a reinforcement layer and the outer jacket.
- a reinforcement layer can be formed from several cables.
- at least one rope can be made of metal (e.g. steel) and / or a composite material (e.g. carbon fiber, glass fiber, etc.).
- the offshore wind park comprises at least one first offshore device (e.g. offshore wind turbine, offshore transformer station, etc.) and at least one further device (such as an onshore transformer station or another offshore device, e.g. an offshore wind turbine, offshore transformer station Etc.).
- the first offshore device and the further device are connected via a previously described submarine cable.
- An offshore wind turbine can have a generator that converts the kinetic energy of the wind into electrical energy.
- Another aspect of the application is a method for producing a submarine cable, in particular a submarine cable described above. The method comprises: providing a cable base body, containing at least one phase conductor, set up to transmit electrical energy, and applying an outer jacket with an outer structured jacket surface to the cable base body by an extrusion process or a combined extrusion and stamping process.
- a cable base body can be provided which comprises all cable elements of a submarine cable (except for the outer sheath).
- An outer jacket can then be applied to at least a section of the cable base body in the manner described above.
- Yet another aspect of the application is a method for laying a submarine cable, in particular a submarine cable described above.
- the procedure includes:
- Provision of at least one further submarine cable having an outer sheath with a further outer structured sheath surface, adapted for a further type of seabed,
- the subsurface can be analyzed and the type of body of water determined.
- it can be determined whether an essentially hard substrate or an essentially soft substrate (for example, limit values can be specified) is present.
- the submarine cable to be laid can be determined depending on the determined type of water bed in the laying area (e.g. soft or hard; sandy or stone floor; or the like). For example, when a soft subsoil (e.g. predominantly sandy soil) is detected, the above-described embodiment A can be determined and when a hard subsoil (e.g. predominantly stone soil) is detected, the above-described embodiment B can be determined. Then the specific submarine cable can be laid.
- the determined type of water bed in the laying area e.g. soft or hard; sandy or stone floor; or the like.
- a soft subsoil e.g. predominantly sandy soil
- a hard subsoil e.g. predominantly stone soil
- Yet another aspect is the use of a previously described submarine cable for laying the submarine cable on a body of water.
- FIG. 1 shows a schematic view of an exemplary embodiment of a submarine cable according to the present application
- Fig. 2 is a schematic view of a further embodiment of a
- FIG. 3a shows a schematic view of a further exemplary embodiment of a submarine cable according to the present application
- FIG. 3b shows a schematic view of a further exemplary embodiment of a submarine cable according to the present application
- FIG. 3c shows a schematic view of a further exemplary embodiment of a submarine cable according to the present application
- 3d shows a schematic view of a further exemplary embodiment of a
- 3e shows a schematic view of a further exemplary embodiment of a submarine cable according to the present application
- FIG. 4a shows a schematic view of a further exemplary embodiment (in particular embodiment A) of a submarine cable according to the present application
- FIG. 4b shows a schematic view of a further exemplary embodiment (in particular embodiment B) of a submarine cable according to the present application
- FIG. 5 shows a diagram of an exemplary embodiment of a method according to the present application
- FIG. 6 shows a diagram of an exemplary embodiment of a further method according to the present application
- Fig. 7 is a schematic view of an embodiment of an offshore
- Wind energy system according to the present application.
- FIG. 1 shows a schematic (cross-sectional) view of an exemplary embodiment of a submarine cable 100 according to the present application.
- the submarine cable 100 is in particular a high-voltage or medium-voltage submarine cable 100 for the transmission of energy.
- the submarine cable 100 comprises at least one phase conductor 102, set up to transmit electrical energy.
- the phase conductor 102 is integrated in a cable base body 104, which will be explained by way of example in the following exemplary embodiments.
- the submarine cable 100 has an outer sheath 106 which is made in particular from HDPE. As can be seen, the outer jacket 106 surrounds the at least one phase conductor 102 (indirectly). The outer sheath 106 has an inner or inner sheath surface 110 which makes contact with the cable base body 104.
- the outer jacket 106 has an outer jacket surface 108.
- the outer jacket surface 108 is a structured jacket surface 108, that is to say has a structure or a profile.
- the outer jacket surface 108 is therefore not a smooth surface, as is known from the prior art, but a structured jacket surface 108, that is to say a jacket surface 108 with unevenness.
- the outer jacket surface 108 has an irregular or non-periodic structure.
- FIG. 2 shows a schematic (cross-sectional) view of a further exemplary embodiment of a submarine cable 200 according to the present application. To the To avoid repetition, essentially only the differences from the previous exemplary embodiment according to FIG. 1 are described below, and otherwise reference is made to the previous statements.
- the illustrated submarine cable 200 has three phase conductors 202.1 to 202.3 in order to transmit energy (or power or current).
- a phase conductor 202.1 to 202.3 can be formed in one piece, but also in several pieces.
- a phase conductor 202.1 to 202.3 can be round or sector-shaped and / which can be made single-wire or multi-wire.
- an insulation layer e.g. as a phase conductor screen (also called conductor screen)
- an insulation layer can advantageously be placed
- an (outer conductive) layer 214.1 to 214.3 made of a non-metallic cover in combination with a metallic part as e.g. a core protective layer
- a metallic shield (not shown) can additionally be provided between core protective layer 214.1 to 214.3 and insulation layer 220.1 to 220.3.
- optical phase conductor cable 222 can optionally be provided.
- the optical phase conductor cable 222 can be coupled to a temperature detection device in order to monitor the temperature in the submarine cable. It can also be used for data transmission.
- the submarine cable 200 generally has a filler material 216 (also called fillers).
- a so-called bedding layer 224 can be placed between the at least one reinforcement layer 218 and the elements (previously described) (phase conductor, optical phase conductor cable 222, etc.) arranged inside the submarine cable 200. be arranged in order to provide in particular a protective layer 224 between the at least one reinforcement layer 218 and the inner cable elements.
- a bedding layer (not shown) can also be arranged between two reinforcement layers and between a reinforcement layer and the outer jacket.
- a reinforcement layer 218 can be formed from a plurality of cables 218.1, 218.2.
- a rope 218.1 made of metal (e.g. steel) and / or a composite material (e.g. carbon fiber, glass fiber, etc.) and at least one other
- Rope 218.2 can be made of metal (e.g. steel) and / or a composite material (e.g. carbon fiber, glass fiber, etc.).
- the outer jacket 206 has a structured outer jacket surface 208.
- the structure on the outer jacket surface 208 is a regular or periodic structure.
- the structured jacket surface 208 is formed in particular by a base area 226 (which in particular forms the deepest point of the structure) and a plurality of elevations 232 which protrude from the base area 226 in a radial direction.
- Each elevation 232 has, in particular, a tip 228.
- the distance 230 (also called the depth of the structure or of the profile) between a tip 228 and the base area 226 is preferably between 0.5 cm and 1.5 cm.
- the outer surfaces of the elevations 232 are concave in the present case.
- the elevations 232 can each be axially running or extending elevations 232.
- FIGS. 3a to 3e show (perspective) views of further exemplary embodiments of submarine cables 300 according to the present application. To avoid repetition, essentially only the differences from the previous exemplary embodiments according to FIGS. 1 and 2 are described below, and otherwise reference is made to the previous statements.
- the respective basic cable body 304 is shown in a simplified manner and only one phase conductor 302 and one phase conductor. surrounding cable body includes.
- the basic cable body 304 can be formed similarly to the basic cable body according to FIG.
- the reference numeral 301 denotes the axial direction
- the reference numeral 303 the radial direction
- the reference numeral 305 the circumferential direction.
- FIG. 3 a shows a submarine cable 300 with a structured outer jacket surface 306 which has a plurality of elevations 332 and a base area 326. As can be seen, the outer surfaces of the elevations 332 are flat in the present case. In addition, the elevations 332 each extend axially along the axis 340 of the submarine cable 300.
- the individual elevations 323 have an essentially triangular cross section.
- the leg of the triangle which lies opposite the tip 328 is in particular curved [depending on the radius of the submarine cable 300).
- the submarine cable 300 has an essentially star-shaped cross section. It goes without saying that more or fewer elevations can be provided as seen in the circumferential direction.
- FIG. 3 b shows a submarine cable 300 with a structured outer jacket surface 306 which has a plurality of elevations 332 and a base area 326.
- the outer surfaces of the elevations 332 are flat in the present case and the individual elevations 323 in particular have an im Essentially triangular cross-section.
- the cross section of the submarine cable 300 has an octagonal shape. It goes without saying that more or fewer corners can be provided as seen in the circumferential direction.
- elevations 332 with a rectangular cross section protrude from the base area 326 in the radial direction 303.
- elevations 332 with a semicircular cross section protrude from the base area 326 in the radial direction 303.
- the outer surfaces of the elevations 332 are convex in the present case.
- the elevations 332 each extend in the axial direction 301 along the axis 340 of the respective submarine cable 300.
- the elevations 332 extend in the circumferential direction 305.
- the outer jacket surface 308 can have grooves running in the circumferential direction 305. These can be embossed, for example, by a stamping process.
- FIGS. 4a and 4b show schematic (cross-sectional) views of two preferred exemplary embodiments of submarine cables 400 according to the present application. To avoid repetition, essentially only the differences from the previous exemplary embodiments according to FIGS. 1 to 3e are described below, and otherwise reference is made to the previous statements.
- the respective basic cable body 404 is shown in a simplified manner and comprises only one phase conductor 402 and one cable body surrounding the phase conductor 402.
- FIG. 4a shows a submarine cable 400 which is designed in particular for use on a soft body of water, in particular a sandy bottom
- FIG. 4b shows a submarine cable 400 which is designed in particular for use on a hard body of water, in particular a stone floor .
- the structured outer jacket surface 408 has a plurality of elevations 432 spaced apart from one another in the circumferential direction.
- the elevations 432 in particular have an essentially triangular cross-sectional area or cross-section.
- the elevations 432 can in particular extend axially, but can also be formed like humps, that is, for example, be conical or pyramidal.
- elevations 432 are arranged, each of which has an extension element 450 at the respective tip 428 with a preferably rod-shaped cross-sectional area or cross-section.
- the distance 430 between a tip 428 and the base 426 is preferably between 0.5 cm and 1.5 cm.
- the length 452 of an extension element 450 is preferably between 1 cm and 4 cm.
- an angle ⁇ -180 ° is provided between the extension elements 450 arranged adjacent to one another in the circumferential direction. It goes without saying that in other variants of the application the angle can be between 170 ° and 190 °.
- the structured outer jacket surface 408 has a plurality of elevations 432 spaced apart from one another in the circumferential direction.
- the elevations 432 in particular have an essentially triangular cross-sectional area or cross-section.
- the elevations 432 can in particular extend axially » but also be formed like humps » that is, for example, be conical or pyramidal.
- » is by the. exactly four elevations 432 arranged in the circumferential direction on the respective tip 428 each having an extension element 450 arranged with a preferably rod-shaped cross-sectional area or cross-section.
- the distance 430 between a tip 428 and the base 426 is preferably between 0.5 cm and 1.5 cm.
- the length 452 of an extension element 450 is preferably between 1 cm and 4 cm.
- an angle a 90 ° is (always) provided between the extension elements 450 arranged adjacent to one another. It goes without saying that in other variants the respective angle can be between 45 ° and 135 °.
- the submarine cable 400 rests on the bottom 466 and is in this position by two in
- Extension elements 450 arranged adjacently in the circumferential direction are supported. In this state, moving the submarine cable 400, for example due to a current, is made significantly more difficult, so that a permanently stable position of the submarine cable 400 on the seabed 466 is achieved. No digging is required.
- FIG. 5 shows a diagram of a method according to the present application for producing a submarine cable, in particular a submarine cable according to one of the previous exemplary embodiments.
- a basic cable body is provided (for example in accordance with FIG. 2), containing at least one phase conductor (preferably three phase conductors), set up to transmit electrical energy.
- an outer sheath with an outer structured sheath surface is applied to the cable grurid body by an extrusion process or a combined extrusion and stamping process.
- FIG. 6 shows a diagram of a method according to the present application for laying a submarine cable, in particular a submarine cable according to one of the previous exemplary embodiments.
- a first submarine cable (e.g. embodiment A) is provided, having an outer sheath with a first outer structured sheath surface, adapted for a first type of seabed.
- a step 602 (which can be carried out at least partially in parallel), at least one further submarine cable (e.g. embodiment B) is provided, having an outer jacket with a further outer structured jacket surface, adapted for a further type of seabed.
- providing a submarine cable in steps 601 and 602 means that the respective submarine cable is basically available for laying
- the type of body of water is determined in the laying area of the submarine cable to be laid. For example, soil samples can be taken and analyzed in the laying area.
- the submarine cable to be laid is determined from the first and the at least one further submarine cable provided, based on the determined type of seabed.
- a specific soil parameter range can be specified for each of the at least two submarine cables. If it is determined that the soil samples are (at least predominantly) in the soil parameter range that the first Submarine cable (e.g. embodiment A) is assigned, then the first submarine cable is determined or selected. If it is determined that the soil samples (at least predominantly) lie in the soil parameter range that is assigned to the further submarine cable (for example embodiment B), then the further submarine cable is determined or selected.
- FIG. 7 shows an exemplary embodiment of an offshore wind farm 760 according to the present application.
- Two offshore wind turbines 762 are shown by way of example.
- an offshore wind park can have a large number of offshore wind turbines and at least one offshore transformer station (not shown).
- a plurality of offshore wind turbines can be electrically interconnected to form a plurality of strings, each string being able to be electrically connected to an offshore transformer station.
- the offshore transformer station can in turn be electrically connected to a further offshore transformer station or to an onshore transformer station of the offshore wind farm.
- an offshore wind power plant 762 is installed on the water floor 766, in particular a sea floor 766, via a foundation structure.
- an offshore device can also be a floating offshore device with a floating foundation structure.
- An offshore wind turbine 762 is set up to convert the kinetic energy of the wind into electrical energy.
- an internal cabling network in the form of submarine cables 700 is provided in the offshore wind farm.
- a submarine cable.700 can be formed, for example, like a submarine cable described with reference to FIGS. 1 to 4b, so that reference is made to the above explanations to avoid repetition.
- a submarine cable 700 can be divided into at least two, in particular (precisely) three, sections 700.1 to 700.3.
- a first and a third section 700.1, 700.3 can each run from an electrical connection 764 of an offshore device 762 to (approximately) the bottom of the water 766.
- the second section 700.2 runs from one end of the first section 700.1 to one end of the third section 700.3.
- the first and third sections 700.1, 700.3 are essentially surrounded exclusively by water, while the second section 700.2 rests on the seabed 766 (and may for example be partially sunk).
- the first and third sections 700.1, 700.3 can preferably have an outer jacket surface without a structure, that is to say with a smooth, profile-free surface.
- the outer jacket surface of the second section 700.2 is a structured jacket surface, as has been described above.
- the first and third sections 700.1, 700.3 can have an essentially oval-shaped cross-sectional area and the second section 700.2 can have an essentially circular basic cross-sectional area (that is, the area without the elevations).
- the first and third sections 700.1, 700.3 are optimized for a course through the water and the second section 700.2 for laying on a body of water.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Insulated Conductors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020106275.3A DE102020106275A1 (de) | 2020-03-09 | 2020-03-09 | Seekabel für Verlegung auf Gewässerboden |
| PCT/EP2021/053404 WO2021180416A1 (de) | 2020-03-09 | 2021-02-12 | Seekabel für verlegung auf gewässerboden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4118723A1 true EP4118723A1 (de) | 2023-01-18 |
Family
ID=74672279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21706856.8A Withdrawn EP4118723A1 (de) | 2020-03-09 | 2021-02-12 | Seekabel für verlegung auf gewässerboden |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4118723A1 (de) |
| DE (1) | DE102020106275A1 (de) |
| WO (1) | WO2021180416A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069489B (zh) * | 2021-11-16 | 2023-08-22 | 中科蓝光(北京)电缆科技有限公司 | 一种海底电缆安装辅助设备 |
| CN115036878A (zh) * | 2022-08-12 | 2022-09-09 | 山东柏远复合材料科技股份有限公司 | 一种便于安装的抗压海底线缆包装管 |
| CN116313246A (zh) * | 2022-12-08 | 2023-06-23 | 合肥工业大学 | 一种海底抗压电缆 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1640343A1 (de) * | 1966-09-30 | 1970-08-20 | Kabel Metallwerke Ghh | Elektrisches Kabel,vorzugsweise Seismographenseekabel |
| IT1134238B (it) | 1980-11-12 | 1986-08-13 | Pirelli | Cavo elettrico sottomarino |
| US5367971A (en) | 1992-03-12 | 1994-11-29 | Australian Sonar Systems Pty Ltd. | Towed acoustic array |
| FR2884641A1 (fr) * | 2004-04-14 | 2006-10-20 | Sercel Inc | Compose solide de remplissage pour un cable sismique marin |
| CA2508216A1 (en) | 2005-04-14 | 2006-10-14 | Sercel, Inc. | Solid flooding compound for marine seismic cable |
| EP2008286A2 (de) | 2006-04-11 | 2008-12-31 | General Dynamics Advanced Information Systems | Gerillter mantel für unterwasserkabel und verfahren zu seiner herstellung |
| DE102010056458A1 (de) | 2010-12-29 | 2012-07-05 | Repower Systems Ag | Windpark und Verfahren zum Betreiben eines Windparks |
| DE102014203223A1 (de) * | 2014-02-24 | 2015-08-27 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Herstellung eines Seekabels sowie damit hergestelltes Seekabel |
| DE102017127558A1 (de) | 2017-11-22 | 2019-05-23 | Atlas Elektronik Gmbh | Schleppkabel zum Schleppen im Wasser, Schleppantenne und Wasserfahrzeug |
| CN207572105U (zh) | 2017-11-27 | 2018-07-03 | 海南梵思科技有限公司 | 一种用于海洋中的抗压式电缆 |
-
2020
- 2020-03-09 DE DE102020106275.3A patent/DE102020106275A1/de not_active Withdrawn
-
2021
- 2021-02-12 EP EP21706856.8A patent/EP4118723A1/de not_active Withdrawn
- 2021-02-12 WO PCT/EP2021/053404 patent/WO2021180416A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020106275A1 (de) | 2021-09-09 |
| WO2021180416A1 (de) | 2021-09-16 |
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