Design principles of
solar street light: 1. From the functional point of view, the main function of the road lighting system is to ensure traffic safety, improve transportation efficiency, ensure personal safety, and provide a comfortable environment. 2. On the basis of meeting the needs of various functions of road lighting, improve the energy efficiency of road lighting systems, reduce system power consumption, save energy, and reduce pollution, so as to achieve the purpose of energy saving and environmental protection. 3. In addition, it is necessary to comprehensively consider the local light resource conditions, local rainy weather conditions, solar panels covered by dust, temperature effects, various efficiencies of controllers, and batteries. Design requirements for solar integrated street lights: (1) Calculation and selection of panel power. (2) Display of battery capacity, charge and discharge control and charge and discharge status. (3) Satisfy a certain number of consecutive rainy days. (4) The street lights automatically turn on when the light is dim, and automatically turn off when the light is strong in the morning. (5) Various parameters set by the user can be saved when the system is powered off. Main design parameters: 1. Longitude and latitude: You can understand and master the local meteorological resources through geographic location, such as monthly (year) average solar radiation, average temperature, wind resources, etc. According to these conditions, the local solar energy standard can be determined Peak hours (h) and inclination and azimuth of solar modules. 2. Parameters of light source: working voltage and power. The size of these two parameters directly affects the parameters of the entire system. 3. Working time (H): This is the core parameter that determines the size of the components in the solar street light system. By determining the working time, the daily power consumption of the load and the corresponding charging current of the solar cell components can be preliminarily calculated. 4. The number of consecutive rainy days to be maintained (d): This parameter determines the size of the battery capacity and the solar cell module power required to restore the battery capacity after the cloudy and rainy days. 5. The number of days between two consecutive rainy days (D): This is to determine the power of the battery components required by the system to fully charge the battery after a continuous cloudy and rainy day.
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