Integral space structure for offshore converter station

Abstract

The invention relates to an integral space structure for an offshore converter station, and mainly relates to the field of offshore wind power development, in particular to the field of offshore electrical boosting platforms. An upper module in the integral space structure for the offshore converter station provided by the invention forms a three-transverse-truss four-longitudinal-truss space frame system, wherein transverse trusses are used for bearing large-span weight load of a main structure, and longitudinal trusses are used for transmitting loads, form a whole with the transverse trussesand are transmitted to the jacket and the pile foundation; therefore, it is guaranteed that the structure has enough overall rigidity, the natural vibration frequency is larger than 0.6s, the structure is far away from the wave main frequency, and the vibration of the structure under the effect of environment loads is reduced. In the transportation period, temporary binding members are arranged to share stress on main columns of a valve hall transverse frame, the risk that a main frame is unstable when inertia effects such as rolling or pitching or heaving happen to a ship in the marine transportation period is reduced, and the situation that the design size of main column members is too large is avoided.

Description

technical field [0001] The invention relates to an integral space structure for an offshore converter station, and mainly relates to the field of offshore wind power development, especially the field of offshore electric booster platforms. Background technique [0002] The offshore converter station is the inevitable product of the new energy development of offshore wind power from the small capacity in the near shallow sea to the large capacity in the deep sea. Offshore converter stations need to accommodate a variety of heavy equipment, such as converter valves and accessories weighing more than 1,000 tons, and coupling transformers with a single weight of 500-600 tons. Considering the necessary functional rooms such as water cooling and heating ventilation, the total weight of the upper block will reach about 20,000 tons, which is far larger than the traditional offshore AC booster station, and is also comparable to the spatial layout of the relatively mature onshore conv...

AI Technical Summary

Problems solved by technology

The existing disclosed technical solutions only focus on the overall layout of offshore converter stations, such as "Fixed Offshore Converter Station for Offshore Wind Farm" (ZL 201721551239.3) and "An Offshore Converter Station for Flexible DC Transmission System "(CN201910302415.7), there is no structural implementation scheme that can be applied in engineering

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