Knowledge of solar lamp factory: analysis of operation structure of complementary solar street lamp

Nowadays, road lighting equipment in many cities use solar power and city electricity together. That is to say, many cities have installed city electricity complementary solar street lights. This is the use of solar energy on the original city circuit lights. It does not waste resources and saves a lot of costs. What is the operating structure of the complementary lighting system of solar photovoltaic power and mains power? One of the most common is low-voltage DC light source switching, which is also a control method for the use of low-voltage DC light sources in complementary solar street lights. That is, when the battery voltage drops to a certain value, the system directly switches to the mains. This system is more reliable than the battery supplementary charging mode, because it can work completely independent of the battery, even when the solar photovoltaic system fails, the solar street light can still work. The power requirement of its converter is relatively large, and it needs to be able to directly start the low-voltage DC light source. One of the most common operating structure of complementary solar street lights with commercial power is the switching of low-voltage DC light sources, which will not affect the use of commercial power and will not cause the service life of solar power.