Solar Street Lamp Engineering Design Related Introduction

We already know the advantages of commercial power supply complementary solar street lights. When we want to study the key technologies in the use of the city's electrical complementary solar street light, it is no longer the problem of solar panel conversion rate and solar street light battery. The most important issue to be solved now is to convert and use commercial power under what conditions.

In solar photovoltaic power generation and market-electrical complementary lighting system, when the energy supplied by the solar cell is not enough to drive the light source, it is the best time to turn on the market. That is, it will not waste energy at will, and it can supply power to the commercial power supply in the case where the solar landscape light price solar power is not supported, thereby stopping the lighting. This is not to say that the complementary light of commercial power supplies can be switched at any time, so too frequent switching is easy to damage the service life of the solar street light of the commercial power supply.

The utility model determines that the energy provided by the solar cell is insufficient to drive the light source, and then check the end voltage of the battery is the easiest and most effective method. Since the power of the light source is constant, and the discharge current of the battery is constant, the state of the solar photovoltaic system, in particular the amount of stored energy, can be reflected on the end voltage of the battery. For lead-acid batteries, 12V system generally select When the battery voltage drops to 11V, the street lamp will be converted from the solar photovoltaic power to the mains. If it is a 24V system, it will be converted to a commercial power when the battery voltage drops to 22V.