Simulation tool to measure effect of waves on offshore floating solar


Scientists at Malta's可持续能源研究所have developed a simulation tool to assess theeffect of wave response motion inoffshore floating PV installations.

“The simulation tool is applicable to any offshore project as long as the characteristic equations representing the response of the raft to incoming waves are known,” professor Luciano Mule'Stagno told新利18appnet.

The researchers stressed the importance of the solar module tilt angle in the planning of floating PV projects. “Tilt angles for floating installations are governed by other facts than optimal power generation, including esthetic impact, wind loading and available space,” they explained, noting that offshore systems may not always be in line with the designed tilt angle and orientation, due to the response of the floating structure to incoming waves. Three different movements were identified for a floating solar array and these were categorized by the scientists as音高,偏航和滚动运动。

They initially used both isotropic and anisotropic models to predict the total radiation on the modules' inclined surface. The first assumes an isotropic combination of diffuse radiation from the sky and ground-reflected radiation and the second calculates in detail all the components of diffuse radiation and also includes horizon brightening. The anisotropic method was chosen to predict the loss or gain in yield in a floating installation due to movements in pitch, yaw and roll.


Image: Institute for Sustainable Energy



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The simulation tool is described in the paperThe effect of wave response motion on the insolation on offshore photovoltaic installations, 出版于Solar Energy Advances.

The same research group recently developedfloating structures for offshore solar plantsthat are claimed to be robust enough to withstand central Mediterranean weather and cheap enough to be competitive with ground-mounted solar parks on small islands or in large coastal cities.