Smart energy, one of the operators and investors, believed that "we assume that the water level of the power station is more than 1m higher than the design standard of the floating PV mounting system
manufacturer, and the fluctuation is more severe. At this time, under the impact of the cross wind, the cell plate beyond the edge of the floating photovoltaic mounting system
overturned. Then, it was in a state like capsizing".
Changzheng Shang, a worker in one Hebei energy engineering design company, said that the preliminary assumption was that the rain brought by the typhoon may cause the water level of the lake to rise. The length can not be reserved for the anchorage system, and the floating body is pulled out of the water, resulting in the fracture of the connecting earrings of the floating body. Without the fixation of the anchorage system, the components of the floating pv brackets
on the side are more vulnerable to overturn by the wind. The main reason is the rising water level and the broken earrings.
Ciel Terre professionals said that the surrounding area was usually connected to an empty mounting system without solar panels. This time, the edge part of the floating pv structures
overturned by the strong wind which is not connected to the empty mountings, and the battery panel exceeds the height of the floating pv mounting system
. Therefore, there are also views that this may cause the battery panel to be easily overturned from behind by the wind.
Guangdong, Fujian, Zhejiang, Hainan and Taiwan are the provinces where typhoons frequently land in China. In the midsummer season from July to September, the path of typhoon moves northward and westward, and China's coastal provinces from Guangxi to Liaoning are likely to be attacked by typhoons in this season. In the transition season from June to October, the typhoon mainly turns northward on the sea surface to 125 degrees east longitude, and the westward path is northward between 15-20 degrees north. A few typhoons can land in Guangdong, Taiwan, Fujian and Zhejiang.
Therefore, the wind load should be taken into account in the design of water floating photovoltaic in these areas. In the design of the water floating photovoltaic project, Changzheng Shang proposed to adopt the floating system of floating body and brackets. The buoyancy is only provided by the floating body, and the larger horizontal force is borne by the floating pv mounting system
, which can resist very strong horizontal force.
As for the anchoring system, Changzheng Shang said that more reliable anchoring piles should be used, and the length of the anchor rope should be selected according to the minimum dry water level, the maximum flood level and the maximum constant water level. The floating mounting system
is always in a state of dynamic balance on the water surface, and there is no problem that the floating PV mounting system
will be pulled into the water due to the rising water level.