10 FQA ABOUT Solar Sistema de montagem flutuante

1. Q: Why is the capacity of the water surface layout scheme about half that of the ground power station?
A: Because the water depth of the project site is deep, the anchor radius is generally designed to be twice the maximum water depth. Therefore, considering the anchor radius, the layout capacity of the water surface power station on the same area is much smaller than that of the ground power station.

2. Q: What basic data (hydrology, geology, light, etc.) are required for water surface photovoltaics, how to observe, and how long to observe?
A: The data required for water surface photovoltaics in the early stage mainly include: wind speed, flow rate, wave height, water depth, water level difference, geological survey report, layout red line, annual irradiation and other information. Collecting the above complete information can have a complete design for array layout, anchor system, etc.; the observation time is generally collected in 25 years, 50 years, and 100 years. The hydrological conditions are generally set according to the historical maximum value.

3. Q: The anchor system is not at the maximum water depth, and the water level has dropped. Will the force increase in this case?
A: When the water depth is not the maximum, the square array is blown to one side by the wind, and the anchor rope on the other side will be tightened. At this time, the angle becomes smaller, the vertical force of the anchor rope becomes smaller, and the force will also become smaller. It will not be greater than the force at the maximum water depth.

4. Q: Will the square array be overturned when a strong wind suddenly comes?
A: Since the components are installed at an angle with the ground, the vertical upward moment of the wind load generated by the wind on the north side is larger than that in other directions. However, this vertical upward moment is smaller than the downward moment generated by the anchor cable of the square array. At the same time, the stress generated by the wind load on the rod is much smaller than the allowable stress of the material of the rod itself, so the rod will not bend, so our square array will not be overturned as a whole.

5. Q: How to ensure the safety of the square array when it changes?
A: When the water level drops, the cable is loose. When there is wind, the square array drifts, and the cable on the wind side is tightened due to drift, thereby limiting the drift range of the square array. When arranging the square array, ensure that the spacing is sufficient, the square array will not collide, and ensure safety. When the water level rises, the anchoring cable is tight, the array drift is small and no collision occurs.

6. Q: Is the floating body suitable for extremely cold and icy environments?
A:1. In response to the floating power station project on the water surface in high-cold areas, a floating power station test project was built in Xinhua Lake, Daqing City in 2018. Since the floating power station was put into operation, it has experienced long-term freezing and snowfall, and it has been running stably without any problems. 2. After the floating body product has been frozen for a long time, its performance indicators were measured in the laboratory, and all met the requirements, proving that freezing will not affect the performance of the floating body, the floating body will not affect the environment, and will not be squeezed, deformed and damaged by ice.

7. Q: How to ensure the relative displacement between the floating bodies and ensure the stiffness of the entire array?
A: The three functions of the anchoring system: ensuring the azimuth angle, controlling the drift range, and preventing the edge of the array from overturning. The stiffness of the entire array is related to the floating body product and its layout. The layout of the floating body + rods has a greater stiffness than the layout of the pure floating body.

8. Q: What is the process of the entire floating power station construction?
A: Infrastructure construction:
Shoreside infrastructure: docks, roads, power access points, etc.
Water infrastructure: anchoring system, cable laying, etc.
Floating body assembly:
Floating unit prefabrication: prefabricate floating units in the factory or on the shore.
Floating unit transportation: transport the prefabricated floating units to the construction site.
Floating unit connection: connect the floating units into a complete platform.
Component installation:
Component fixing: fix the solar panels on the floating platform.
Electrical connection: connect components, inverters, cables, etc.
Commissioning and operation:
System debugging: test the system operation status to ensure the normal operation of the system.
Grid connection test: connect the power station to the grid for testing and acceptance.

9. Q: How can a floating body ensure the stability of the bracket?
A: Stability of the bracket. Generally, before the product is put on the market, the system module of the float + component + bracket + rod will be subjected to a physical wind tunnel test (third-party inspection, TUV), and the module will be loaded from different directions (wind load)

10. Q: Can it be used in highly corrosive water?

A: According to experience, the lowest pH value is 3 (Malaysia 13MW project), seawater environment corrosion intensity project: Taiwan 180MW (90+90) project.