A Chinese research team has developed a floating PV system that reportedly offers high stability and superior seakeeping performance. It features a series of floating pontoons for buoyancy, linked to a support structure for solar panels.
Researchers from Jiangsu University of Science and Technology in China have developed a new floating PV system design that can reportedly withstand waves up to 4 meters in offshore waters.
“Our work has made significant progress in understanding the hydrodynamic responses of a novel offshore floating photovoltaic (FPV) system, which is designed to optimize performance and stability in challenging marine environments,” said the study’s corresponding author, Sheng Xu. pv magazine. “By integrating both experimental and numerical analyses, our research provides deep insights into the complex dynamics of a multi-module FPV system. These findings are valuable to the engineering and design community and will contribute to the cost-effective deployment and robust application of floating solar technology in offshore environments.
According to the research group, the proposed system design offers high stability and superior seakeeping performance. Seakeeping measures how well a ship or vessel is suited to the conditions at sea and assesses whether it can operate effectively and ensure human safety, even on the high seas with rough conditions.
The proposed system consists of a series of floating pontoons for buoyancy, linked to a support structure for solar panels. The researchers used a 1:20 scale model, which was tested in the university’s wave basin under both regular and irregular wave conditions to assess its hydrodynamic properties. “The results showed that the new FPV system can withstand wave heights of up to 4 meters,” Xu added.
The study included twenty-one regular wave tests to establish the response amplitude operator (RAO) of the FPV system, examining its behavior under different wave frequencies and directions. The RAO refers to the motion of a floating ship in six degrees of freedom. “Our analysis indicated that the FPV system is most vulnerable under sea conditions,” scientists noted. “This critical insight enables targeted design adjustments to ensure resilience under the most challenging wave conditions.”
In addition, the team used a validated numerical model to simulate the hydrodynamic performance and mooring stresses of the FPV under extreme sea conditions. This integrated approach allows them to predict the system’s behavior and optimize its design for practical, real-world applications.
Their findings are available in the article “Experimental and numerical investigation of the hydrodynamic responses of a new floating photovoltaic system at sea”, which was published in Ocean technology and outlines the innovative design and extensive testing procedures.
“The study’s comprehensive analysis, which included spectral analysis and motion response assessments, demonstrates the adaptability and efficiency of the FPV system in marine environments. These results will inform the future development of FPV systems, ensuring they can withstand the challenges of offshore environments,” the authors said. “We look forward to further developments that will increase the resilience and efficiency of these systems in the face of extreme environmental conditions.”
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