Wind solar hybrid street light refers to the system that wind turbine and solar panels are combined as power generation components to jointly charge the energy storage battery and realize the corresponding LED street lamp power supply at night, referred to as “wind-solar hybrid street light”.
Wind solar hybrid street lights can make full use of solar energy to irradiate solar panels on sunny days and wind energy on rainy days and at night. The two functions complement each other to generate a large amount of electric energy, which is stored by solar cells to meet the lighting needs at night. The controller maintains the overcharge and over-discharge of the battery and manages the light source on and on time.
The structure of wind solar hybrid street lights complementary street lamp is composed of wind turbine, integrated solar street lamp, fan control system, lamp pole, and embedded parts.
|Low wind speed wind turbine
|All in one Solar Street Light
|Solar panel, controller, LED lamp all in one design
|Solar street light pole
|Include foot cage, wind turbine bracket
The wind turbine is a facility that converts the natural wind into electric energy and sends the electric energy to the solar street light battery for storage. It cooperates with the solar panel to provide energy for the street lamp. According to the power of the light source, the power of the wind turbine is different, generally 200W, 300W, 400W, 600W, and so on. The output voltage also has 12V, 24V, 36V, and so on.
According to the different climate and natural environment, the solar wind hybrid street lamp can be equipped with different models and specifications of wind power generators, which can achieve the maximum effect in relatively limited conditions.
2. Solar panels:
The solar panel is the core part of the wind-solar hybrid street lights, and it is also the most valuable part of a solar street lamp. Its function is to convert the radiation ability of the sun into electric energy or send it to the storage battery for storage. Among many solar cells, monocrystalline silicon solar cells, polycrystalline silicon solar cells, and amorphous silicon solar cells are more common and practical. In areas with sufficient sunlight and good sunshine, it is better to use polysilicon solar cells, because the production process of polysilicon solar cells is relatively simple and the price is lower than that of single-crystal solar cells. It is better to use monocrystalline silicon solar cells in areas with more rainy days and less sunshine because the performance parameters of monocrystalline silicon solar cells are relatively stable. Amorphous silicon solar cells are better in the case of insufficient outdoor sunlight because the requirements of the hybrid street light conditions are relatively low.
3. Solar controller
No matter the size of the hybrid street light, a good charge and discharge controller is essential. In order to prolong the service life of the battery, its charging and discharging conditions must be limited to prevent overcharge and deep charging. In a place with a large temperature difference, the qualified controller should also have a temperature compensation function. At the same time, the solar controller should have a street lamp control function, light control, time control function, and automatic load switching function at night, so as to extend the working time of the street lamps on rainy days.
As the input energy of the solar photovoltaic power generation system is extremely unstable, it is generally necessary to configure the battery system to work. Generally, there are lead-acid batteries, Ni-Cd batteries, Ni-H batteries, and colloidal batteries. However, the current market choice of lithium has become the mainstream, mainly because of its high efficiency, small size, and longer service life. The selection of battery capacity generally follows the following principles: first, on the premise of meeting the lighting at night, the energy of solar cell modules in the daytime should be stored as much as possible, and at the same time, the electric energy needed for lighting at night in continuous rainy days should be stored. Battery capacity is too small to meet the needs of night lighting, the battery is too large, on the one hand, the battery is always in a state of power loss, which affects the battery life and causes waste. The battery shall match with a solar cell and electric load (street lamp).
4. Light source
What kind of light source is used for Solar and wind-powered street light is an important indicator of whether solar lamps can be used normally. Generally, an LED light source is mainly used for solar lamps.
Led: LED light source, longer life, low working voltage, 180-220lm / W high luminous efficiency, with the progress of technology, the performance of LED will be further improved
5. Lamp pole
The height of the lamp-post shall be determined according to the width of the road, the spacing of lamps, and the illumination standard of the road.
Problems to be paid attention to in selecting Wind Solar Hybrid Street Light
- Selection of wind turbine
A solar street light wind turbine is the landmark product of wind-solar complementary street lamps, the key of fan selection is to make the fan run smoothly. The lamppost is a cable tower without a position. It is most careful that the fixing parts of the lampshade and solar support are loose due to the vibration of the fan during operation. Another main factor of fan selection is its beautiful appearance, lightweight and reducing tower load.
- Design of optimal configuration of the power supply system
To ensure the lighting time of Solar and wind-powered street lights is an important index of a street lamp. As an independent power supply system, the wind turbine powered street lights can be used from the selection of street lamp to wind turbine.
There is a problem of optimal configuration design for the capacity allocation of solar cells and energy storage systems, which needs to be combined with the natural resources of the place where the street lamp is installed.
- Strength design of lamp pole
The quality of Solar and the wind-powered street light pole is the same as the flange length, width, and height, whether the welding is single-side welding or double side welding, and the diameter is large
light pole, wall thickness, surface treatment method (spray paint, plastic spraying, fluorocarbon paint spraying, whether the whole hot-dip galvanizing, etc.),
The selection of steel, surface polishing, and so on are closely related.
According to the capacity and installation height requirements of the selected wind turbine and solar cells, and combined with the local natural resources, the intensity of the lamp pole should be designed to determine the reasonable lamp pole and structural form. Generally, the stability of the lamp pole should be considered first, because the wind complementary solar street lamp adopts the top installation of fans, then solar panels, and then lamps. If the lamp pole is not used way of the thick arm and large lower opening will cause the overall resonance of the fan in the process of rotation.