What parameters in the solar street lights design Part 1
Depending on the installation environment, the requirements for solar street lights are also different, so the configuration of solar street lights is naturally different, such as home outdoor lighting and road lighting, such as main roads and secondary roads, which are different.
So when installing solar street lights, which parameters are often involved, let’s take a look at the details below.
¢Ù System rated voltage
That is, the rated voltage of the battery. The voltage of a single solar cell is generally 0.4~0.7V. The common solar cell module is 36/54/60/72/96 in series, and the voltage is 18/27/30/36/ Around 48 volts.
¢ÚLocal solar radiation
This can be inquired directly on the Internet, select the best angle of the monthly average radiation, and the minimum three-month average is required. When installing, you must also pay attention to the installation angle and direction to ensure that the solar street light can receive sufficient sunlight To ensure the charging efficiency, according to the specific environment, the range of ¡À20¡ã from the south is a better location.
¢ÛCompensation for rainy days
This is determined according to the local climatic conditions. The charging efficiency of the solar battery cover plate is naturally not as good as that of the sunny day when it is cloudy and rainy. Therefore, it is necessary to ensure that the battery can store enough power so that the solar street light can be used normally in the cloudy and rainy day. This will also involve the efficiency of the battery panel.
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¢ÜInterval between consecutive cloudy and rainy days
That is, the number of sunny days between two consecutive cloudy and rainy days. It should be noted here that when calculating the relevant parameters, the average sunshine is generally used as the basis for supplementary charging on a sunny day, and the actual radiation amount in a sunny day is greater than the average sunshine.
And when it¡¯s rainy and cloudy, it¡¯s not that there¡¯s no battery charge into the battery, so when you use this parameter when calculating, you don¡¯t need to really select the interval between consecutive rainy and rainy days, you can enlarge the value appropriately, the value of the interval between rainy and rainy days The ratio of 1:3 or 1:4 is more appropriate.
¢ÝOutput power of solar panel
A solar panel is generally composed of multiple solar cells connected in series, and its capacity depends on the total power consumed by the lighting source, line transmission components, and local solar radiation energy.
Under normal circumstances, the output power of the solar panel should be more than 3 to 5 times the power of the light source, 3 to 4 times or more in areas with abundant sunlight and short turn-on time. The light conditions are not good, and the area with long turn-on time needs to be 4 times. ~ 5 times more.