Anchoring device and anchoring method for overwater photovoltaic array

Abstract

The invention discloses an anchoring device and an anchoring method for an overwater photovoltaic array. The anchoring device comprises a plurality of groups of pile bodies fixed to the water bottom or anchor blocks sinking to the water bottom, catenary chains and anchor ropes. One end of each catenary chain is connected with the anchor block or the pile body, and the other end is connected with one end of the anchor rope; the other end of each anchor rope is connected with an overwater photovoltaic array; according to the anchoring device and the anchoring method, the self-adaptive adjustment effect can be achieved through the catenary, and the stress of an anchor point is adjusted through the self weight of the catenary part; anchoring failure caused by local stress concentration due to non-uniform distribution of anchoring force of a large photovoltaic array can be avoided; as for a large photovoltaic array, multi-row and multi-column catenary anchoring is adopted, anchoring failure caused by local stress of the outermost array can be avoided, the force of the whole array can be dispersed into the whole array, and safety and reliability of anchoring are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power generation on water, and specifically relates to an anchoring device and an anchoring method for photovoltaic arrays on water. Background technique [0002] For the surface photovoltaic system, due to its applicable environment, it is necessary to anchor the floating platform of the photovoltaic system to prevent the displacement of the floating platform caused by waves or water surface fluctuations and cause losses. There are two traditional fixing methods, one is to drop anchors, that is, throw the anchor block into the water around the floating platform and use the anchor rope to connect the floating platform and the anchor block, and the other is to pass a long enough anchor around the floating platform. The anchor rope is connected and fixed with the anchor pile on the shore. [0003] For the underwater anchoring method, the existing method of adjusting the drift of the square arr...

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Problems solved by technology

[0003] For the underwater anchoring method, the existing method of adjusting the drift of the square array caused by the change of the water level mainly includes the elastic rope ( image 3 ), tension spring ( Figure 4 ) and gravity ball ( Figure 5 ) method; the adjustable range of the elastic rope is usually limited by the material of the elastic rope, generally at most 10% of the length of the rope, and the tension spring is also limited by the elasticity of the tension spring, especially in water, it is easy to cause corrosion and fail; the gravity ball The method will lose buoyancy due to the increase of the overall force

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