Wind-solar hybrid solar street light

Wind-solar complementary solar street light

Wind-solar hybrid solar street light system can be applied to road lighting, landscape lighting, traffic monitoring, communication base stations, school science popularization, large-scale advertising, home power supply, etc., as well as seawater desalination, urban landscape, science education, microwave communication, military camp posts, islands and mountains. , Gobi grassland, forest fire prevention, air defense warning, remote rural areas and other geographic areas. Strive to provide users with an environmentally friendly, convenient and safe experience.

system introduction

1. Low wind speed start-up, low wind speed power generation, corrosion resistance and typhoon resistance of wind turbines:

As a street lamp application type wind generator, it is not only necessary to ensure safety, aesthetics and practicability, the wind generator can start to rotate at a wind speed of 2.0 m/s, and start charging at a wind speed of 2.5 m/s. In addition, when applied in coastal areas, it can withstand up to 14 strong typhoons, so it must have a mechanical brake + electromagnetic brake dual-safety braking system. In order to prevent the corrosion of the air in coastal areas, the various parts of the wind turbine must be made of anti-corrosion materials.

2. Intelligent control of the control system (light control, time control, overcharge, overdischarge, overload, undervoltage, protection, etc.):

As a street lamp control system, it not only needs to realize light effect control but also needs time control, so as to achieve the purpose of intelligent automatic control. During the charging and discharging period, it is necessary not only to prevent excessive charging and discharging, but also to realize functions such as excessive discharging. In addition, a low-voltage boost charging system at the core of the control system, when the electric voltage generated by wind power generation and solar power generation is less than 24V and greater than 15V, this part of the electrical energy is boosted to more than 24V, so that it can be processed. Take advantage of.

3. The bearing, anti-typhoon and shape design of the supporting system:

Ordinary street lights have no load-bearing requirements on the top of the pole, but as a wind-solar complementary street lamp, not only the weight of the 50kg wind turbine and the weight of the solar battery pack, but also the need for deflection resistance in the event of a typhoon. The wind turbine is in strong wind. The process of low-speed rotation is an overall force-bearing surface. Therefore, considering the above factors, the strength and cross-sectional shape of the light pole must consider the above safety factors.

4. The selection of the instantaneous voltage and charging and discharging capacity of the energy storage system:

The energy storage battery used in wind-solar hybrid solar street lights requires continuous charging and discharging. Therefore, when choosing a battery, the main choice is to choose a floating-point voltage with a low instantaneous start voltage and a matching load power that can be repeatedly charged and discharged. 20-28V maintenance-free gel storage battery.

5. Solar power matching and conversion rate matching selection:

The photovoltaic modules used in wind-solar hybrid street lamps are limited by the conditions of the application of light resources, and economic factors should be considered in the selection and ratio of power. No matter the solar cell modules made of monocrystalline silicon, polycrystalline silicon or amorphous silicon, they are meeting their requirements. The conversion rate is between 15% and 17% according to local conditions. When choosing installation, it is necessary to set different sun inclination angles according to the latitude of the installation site.

6. Integration and matching of low-voltage lighting fixtures:

The lighting fixtures of wind-solar complementary street lamps mainly choose low-voltage 24V lamps, such as energy-saving lamps, induction lamps, LED lamps, metal halide lamps, etc. The brightness of different combinations of these lamps can reach the effect of ordinary high-voltage lamps. A series of parameters such as illuminance and height need to meet the standards of street lamps. The power of the lamps must not only match the power generation of wind power equipment and solar power equipment, but also match the wind and solar resources of the place where they are used. And there is no danger of electric shock.

7. Integration of the above six major systems (reliability, compatibility, aesthetics, economy, etc.):

The integration of the above six major parts of "wind turbine, control system, support system, energy storage system, solar power generation system, and lighting system" is not only the principle of l+1=2, but ultimately needs to reach 1+1= l requirements, any part of the mismatch will affect the change of the entire system. And because of the different conditions in different regions, different wind-solar complementary system technologies are needed to adapt to regional changes, so as to achieve the most economical and most suitable system for users. The safety and reliability of the whole system is the first; the practicability is the second; the perfection of each component and the overall design is the third; the economy is the fourth. The integration of the six systems is ultimately used as a street lamp, and meeting the needs of users in different regions is the ultimate goal.