Wind power generation high-voltage alternating-current submarine cable
A high-voltage AC and power cable technology, which is applied in the direction of power cables, insulated cables, and power cables with shielding layers/conductive layers, etc., can solve problems such as metal layer damage, and achieve the effects of prolonging service life and excellent bending fatigue characteristics
Inactive Publication Date: 2020-08-14
杭州智海人工智能有限公司
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Problems solved by technology
Therefore, the submarine cable is also repeatedly deformed
[0005] However, the anti-penetration layer of the submarine cable is formed by the metal layer of the conventional metal belt, and it is difficult to repeatedly deform following the vibration of the cable
Therefore, the metal layer forming the impermeable layer has the potential to be damaged, and the fatigue life of the conventional impermeable layer structure is about five to seven years depending on the marine climate conditions
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[0023] Example: as attached Figure 1-4 As shown in the figure, a high-voltage AC submarine cable for wind power generation includes three power cables and an armoring layer that is covered in turn on the outside of the three power cables, a submarine cable anti-penetration layer 9 and an outer protective layer 10, and the power cable includes a conductor 1 and a conductor outside the conductor in turn. The coated insulating part 2, the shielding layer 3, the cable impermeable layer 4 and the anti-corrosion layer 5, the insulating part includes the inner semiconducting layer, the insulating layer and the outer semiconducting layer, the cable impermeable layer and the submarine cable impermeable layer which are covered in turn They are formed by spiral winding of a plurality of multi-layer belts. The multi-layer belt includes a metal layer 11, an upper resin covering layer 111 and a lower resin covering layer 112. The two resin covering layers cover the metal layer. In the shap...
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The invention discloses a wind power generation high-voltage alternating-current submarine cable. A cable impermeable layer and a submarine cable impermeable layer of the wind power generation high-voltage alternating-current submarine cable are respectively formed by spirally winding a plurality of multilayer belts; the multilayer belt comprises a metal layer and two resin covering layers. The two resin covering layers coat the metal layer; a hemispherical concave-convex shape is formed on the metal layer; the convex parts and the concave parts are uniformly distributed at intervals in an array manner; the convex part and the concave part are in transition through a flat part; the flat part is not continuous on a straight line in any direction; and the convex parts or the concave parts are arranged to enable the concave parts and the convex parts to be always continuous in shape, so that the metal layer not only can deform in the axial direction of the submarine cable (power cable), but also can deform in the circumferential direction and the torsion direction of the submarine cable, the impermeable layer has excellent bending fatigue characteristics, and the service life of the submarine cable is prolonged.
Description
technical field [0001] The invention relates to a submarine cable, in particular to a high-voltage AC submarine cable for wind power generation. Background technique [0002] In recent years, as a countermeasure against global warming, renewable energy has been continuously developed and utilized. For example, there have been established floating offshore wind turbines, which are devices that convert wind energy into electrical energy. [0003] Power from offshore wind farms is delivered to land by transmitting power using submarine cables. A submarine cable consists of three power cables that are assembled and twisted together for three-phase AC power transmission. Armored wires are provided around the iron core to support the cable load. The outer layer of the cable is further extruded with a plastic layer for protection The cable is protected from external damage. [0004] Since such submarine cables are laid on the seabed, the internal power cables are required to b...
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IPC IPC(8): H01B7/22H01B7/28H01B7/282H01B9/02
CPCH01B7/221H01B7/2806H01B7/2825H01B9/021H01B9/022
Inventor 迟明张宗政白勇施巧英
Owner 杭州智海人工智能有限公司