Floating Photovoltaic Power Station in China
Floating Photovoltaic Power Station in China
Special component experimental fields, scientific and technological innovation incubation bases, drone inspections... When it comes to the scientific and technological innovation of the 150,000-kilowatt surface floating photovoltaic project in Huainan, Anhui (hereinafter referred to as the Huainan project) of the Three Gorges New Energy, the builders can list many key points word. What are the "black technologies" of the world's largest floating photovoltaic power station?
As the world’s largest water surface photovoltaic project, we adopt domestic advanced new technologies and new materials in the construction, always lead the development direction of photovoltaic power generation industry, lead the technology upgrade of the entire photovoltaic industry, and lead the new model of comprehensive treatment and utilization of coal mining subsidence areas. The construction, operation and maintenance standards for floating photovoltaic power stations on water are the construction targets. "
The floating body and anchoring system are "very stable"
At the Huainan project site, we saw rows of photovoltaic arrays floating quietly on the lake, and inspectors walking on the floating body very smoothly, without swaying left and right as imagined. "This is all thanks to our floating body and anchoring system design!" said Zhang Xubao, a staff member of the Huainan project.
It is understood that floating photovoltaic power plants mainly include photovoltaic modules, electrical equipment and floating foundation platforms. As the foundation of the entire equipment, the safety and stability of the floating foundation platform-the floating body and the anchoring system are particularly important.
As the floating photovoltaic anchoring system on water is a brand-new form, there is a lack of empirical tests in China, and the underwater hydrological conditions in the coal mining subsidence area are complicated. To ensure the safe and stable operation of the power station during its life cycle, Three Gorges New Energy Huainan Photovoltaic Power Co., Ltd. is actively Introduce technical teams such as scientific research institutions, marine engineering companies, etc., collect environmental factors such as meteorology, hydrology, and terrain where the project is located, analyze the main factors affecting the safety and stability of the floating phalanx, and select mainstream floating products in the market, and pass their product technical parameters. A series of model calculations and professional checks ensure that the anchoring system design can meet the stable and safe operation of the power station under extreme weather conditions and water environment. On this basis, the anchoring system is organically combined with freezing, flood control, and fire fighting.
"So far, the Huainan project has withstood the blizzard of 30 centimeters at its thickest point in January 2018, and the August typhoon'Capricorn' brought extreme weather such as strong winds of over 17.2 meters per second, heavy rain and other extreme weather."
Water surface photovoltaic system "first trial"
In the Huainan project, an independent water area is particularly prominent. This is a "5 MW special module experimental field" independently developed by the Huainan Water Surface Photovoltaic Project. The photovoltaic modules here include single crystal PERC, HIT, double-sided N-type single crystal, laminated sheets and other types. Through actual field application, the comprehensive efficiency and reliability of different modules and equipment systems are compared and analyzed, and the comprehensive performance of ground power stations is compared. Based on empirical comparison, select the most suitable modules for surface photovoltaic projects. The on-site staff told reporters: “The demand for modules in the Huainan Water Surface Photovoltaic Project is huge, which provides an excellent test platform for the trial of various new types of modules. Provide technical support for project development and industry technology development."
