Introduction to the design of solar street light lighting system

(1) Make full use of wind energy and solar energy renewable energy to ensure uninterrupted power supply all year round. (2) Applicable environmental working conditions: temperature -15~45C relative humidity 95%; rain and coastal salt spray; wind speed 330m/S; instantaneous limit wind speed 40m/S; total solar radiation 150kca/cm2; annual sunshine 3000h. ( 3) Stability guarantee: stable, safe and reliable operation, and can be used around the clock under unattended conditions. (4) No electromagnetic interference: The wind turbine and its charging controller will not have harmful electromagnetic effects on the surrounding environment. (5) Product quality assurance: The design, manufacture and product quality of wind turbines shall comply with relevant national and industry standards, and the product quality assurance system shall comply with the target regulations. The total power of the system is Pu003d60W/85%u003d71W, which is the efficiency of the inverter and power supply lines. The rated power of the wind turbine is P, the rated power of the solar panel is P2, and the capacity of the battery pack is C. According to the natural resource conditions of the place where the street light is installed: the maximum continuous time that the wind turbine and the solar module cannot generate electricity at the same time is 3d; the solar energy The maximum continuous time that the battery module cannot generate electricity is 12d; the maximum continuous time that the wind turbine cannot generate electricity is 6d. 3 The determination side of the battery pack is 24 hours per day; Take Cu003d340Ah, the actual configuration is Cu003d2V/340Ah battery 12 pieces x1 group. (6) Determination of wind turbine power In the weather when solar cells cannot generate electricity, it is usually continuous cloudy and rainy days. At this time, the wind speed and duration greatly exceed the annual average wind speed and time. According to the meteorological data and the natural environment of the site, in the According to the specifications of wind turbines and the reliability of actual installation and use, the actual configuration of MPSQW. is: 1 WV-02-350W wind turbine. EV-02 series wind turbines have a mechanical automatic clutch system, which is free from the constraints of high wind power requirements for traditional wind turbines, so that the wind turbines can be started under very small wind conditions, and the blades get a certain speed and inertia. At the time, the clutch system automatically starts to drive the generator to generate electricity, which greatly improves the power generation efficiency of the wind turbine and doubles the working time of the wind turbine. EV-02 series wind turbines are equipped with an autonomous yaw system, which can actively align the windward surface to the wind direction when the wind is not strong, so as to obtain the largest windward area and improve the working efficiency of the wind turbine. (7) Determination of solar cell power In the weather when wind turbines cannot generate electricity, it is usually continuous sunny days, and the daily sunshine hours are much higher than the annual average sunshine hours. According to the meteorological data and the natural environment of the site, take 6h/A .According to the specifications of solar cells and the convenience and beauty of installation, take P2u003d200W, and the actual configuration is: 100Wx2 pieces. The strength design of the light pole should meet the requirements of the construction and acceptance specifications of urban road lighting projects, the technical conditions of small wind turbines for light poles and wind turbine tower pipes, and it is very different from the natural frequency of wind turbines, and can withstand class 12. typhoon. The height of the light pole should be determined according to the geographical environment of the installation site to ensure that the use of the wind turbine is not affected. The installation of solar cell modules is generally based on the fact that they do not interfere with the blades of the wind turbine, and at the same time, it is necessary to ensure that the solar cell modules are not blocked by the light poles. The installation height of solar street lamps is determined according to the illumination required by the design. (8) Conclusion Wind energy and solar energy are both non-polluting and inexhaustible renewable energy sources. Small and medium-sized wind power and solar photovoltaic systems have been initially applied in my country. The perfect combination of wind power generation and solar photovoltaic power generation has laid the foundation for the scale, industrialization and marketization of the two new energy sources. In the early days, small and medium-sized wind turbines were used in remote areas, with good natural conditions, low cost, no aesthetic requirements, and low technical requirements. Transferred to economically developed areas, the natural conditions are relatively poor, the industrialization is low, the technical requirements are high, the cost is relatively high, and the shape is required to be beautiful. With the regional environmental differences and demand differences, the requirements for wind-solar hybrid power generation technology have increased, such as low wind speed startup, low voltage energy storage, strong typhoon resistance, salt spray corrosion resistance, intelligent control and a series of technologies are constantly being improved. development process. On the basis of the strong support of the state and the improvement of the wind-solar hybrid street light system technology, people will see rows of wind-solar hybrid street lights on the streets and roads in the future.