High-adaptation easy-to-expand rigid-flexible combined water surface photovoltaic floating system

Abstract

The invention discloses a high-adaptation easy-to-expand rigid-flexible combined water surface photovoltaic floating system which comprises at least two sets of equipment floating bodies and at least two rows of aisle floating bodies used for connecting two adjacent sets of equipment floating bodies, and each row of aisle floating bodies is formed by splicing at least two aisle floating body units. At least two rows of main floating bodies perpendicular to the length direction of the aisle floating bodies are connected between every two adjacent rows of aisle floating bodies, the front end and the rear end of each row of main floating bodies in the length direction intersect with the splicing position of every two adjacent aisle floating body units at one point, and each row of main floating bodies is formed by splicing at least two main floating body units. Each main floating body unit is provided with a photovoltaic assembly through a support assembly. The water surface photovoltaic floating system provided by the invention can be suitable for photovoltaic modules of various specifications and models, only the size of the aisle floating body in the east-west direction needs to be adjusted for the modules of different specifications, the adjustment cost is low, the position of a supporting point completely meets the requirements of a module manufacturer, and the adjustment is easy.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a highly adaptable and easy-to-expand rigid-flexible photovoltaic floating system on water. Background technique [0002] Under the background of double carbon, the development of the photovoltaic industry has once again entered the fast lane, and surface photovoltaics will surely be the main battlefield of the photovoltaic industry. Photovoltaic floating body, as the basis of water surface photovoltaic power station, is also being continuously optimized and improved with the development of the industry in order to adapt to various environments, adapt to various components, and meet the requirements of photovoltaic power stations for the continuous reduction of floating body costs. At present, the factors that have the greatest impact on the production and cost control of floating bodies include: [0003] With the continuous increase of the capacity of a single compo...

AI Technical Summary

Problems solved by technology

However, there are two problems with this solution: First, flat steel is mostly used for V-shaped brackets. The strength of flat steel is difficult to provide effective support during the entire life cycle of photovoltaic power stations. Some power stations have found that flat steel is deformed, which will inevitably reduce the reliability of components. The inclination further reduces the power generation of the power station; second, as the size of the components further increases, the distance between the two support points of the V-shaped flat steel cannot continue to increase

This form has completely returned to the original form of floating body plus steel bracket. The rigidity of the entire floating system is good, but the fatigue resistance is poor

As the main stress-bearing component, the steel bracket is fixed with the walkway floating body by hard connection. Under the alternating load of the long-term operation of the photovoltaic power station, due to the large strength difference between the steel bracket and the floating body, it is easy to be damaged at the connection point. Moreover, as the main stress-bearing component, the steel bracket is prone to stress fatigue under alternating loads, resulting in deformation or even fracture of the component.

[0007] In addition, some manufacturers adopt the form of full HDPE floating body, but the support point spacing of the components does not comply with the requirements of the component manufacturers, which will inevitably lead to hidden cracks in the components during the long-term operation of the power station, which will bring great impact to the safety and stability of the entire power station. risks of

[0008] Due to the above-mentioned technical problems in the design and production of existing floating bodies, it is difficult to promote the application of large-scale photovoltaic modules

These factors have become difficulties hindering the application of large-size modules, hindering the promotion of surface photovoltaic power plants, and even hindering the realization of the double carbon target

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