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Dec 16, 2021

Science: How to repel birds in photovoltaic power plants?

How to repel birds in PV power plant?


The installed capacity of domestic new energy photovoltaic power plants has gradually increased, and it is predicted that the proportion of photovoltaic power generation in the future electricity market will further grow.


The photovoltaic power plant power generation principle is the sunlight irradiation photovoltaic module into photovoltaic effect, after the generation of electricity, and photovoltaic module surface dust, bird droppings and other formation of shading problems to a certain extent hinder the sunlight to reach the photovoltaic cell light intensity, so the photovoltaic module surface cleaning problems directly affect the photovoltaic power plant power generation efficiency.


Module surface dust is better to clean, but bird droppings is not so simple: because bird droppings viscosity, not easy to clean, the composition of complex easy to cause chemical corrosion of the module glass, opaque resulting in component shading. Lightly, it affects the module power generation efficiency, seriously, it forms hot spots and even causes module fire, and often cleaning bird droppings will scratch the module surface glass, which will also lead to a significant reduction in power generation of the power plant. Therefore, it is necessary to find a tool to repel birds in PV power plants.


(1)Adding fine wire or fishing line


When the birds fly to the top of the module, the birds cannot stand on the module frame and the wire, and the wire or line will resonate with the wind and make a buzzing sound to repel birds.



(2)Adding wind power bird repeller


The bird repeller uses wind power as the power source, while using unique bearings and adding lenses to the wind wheel, so that the wind wheel uses the optical reflection principle to form a light-diffusing area in the bird repeller area when doing repeated movements, so that birds are afraid of light and dare not come close to nesting and roosting.


The bird repeller is made entirely of insulating material, which is corrosion-resistant, tough and not easy to break, and can be started with light weight and breeze. 360 degree reflection angle, no blind spot for repelling. The product's reflector frame is designed as a bowl to subsidize the power and increase the power and speed of bird repeller rotation; the rotating shaft is designed with a damping factor, which will have a typhoon resistant effect and will not rotate infinitely, safe and reliable. The product is easy to install, maintenance-free, and has a life span of up to 8 years. Passive wind-driven energy, clean and environmental protection .


(3)Add laser in the component array


+ Directional acoustic wave bird repeller


The laser bird repellent system uses the physical properties of laser to emit a green laser beam with a diameter of 20mm (can be customized according to the required size) and a wavelength of 532nm to sweep at birds. This laser beam has obvious visual stimulation to birds, just like a green stick dialing back and forth, and the frightened birds will then move away from the range.


Experimental proof: birds never develop memory and adaptability to this repellent method, thus ensuring long-term use without failure. Especially for night birds, traditional methods are often powerless, and the use of laser bird repellent technology highlights the effectiveness of night bird repellent, filling the gap in the airport for night bird prevention work.


Laser light source, wavelength 532nm, power 1000mw, by optical beam expansion technology equipment output to achieve safety laser, laser grade 2M. optical lens set to achieve parallel beam, beam angle: 0.05mr, 100% will not produce harm to personnel, laser bird repellent system, sealing grade IP55 built-in temperature control system. Anti-lightning, anti-radiation, no interference with other electronic equipment.


The above 3 kinds of bird repelling methods are the most applied, and more ways to achieve the purpose are not excluded. In the case of not breaking the ecological balance, to ensure that the photovoltaic power plant can have a greater output power.


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