Introduction to lanzhou city street lamp design principle of solar street lamps controller

As photovoltaic devices, high power LED device matures, more and more widely used solar street lamps, and solar street lamps controller as the core of solar street light system is an important component, its work directly influences the performance of the whole solar



with solar photovoltaic devices, high power LED 【 High power LED refers to the light emitting diode with large rated power. 】 Device matures, more and more widely used solar street lamps, and solar street lamps controller' Used in solar photovoltaic systems, solar controller it full solar charge and discharge controller, coordinate the efforts of solar panels, battery, load, is a very important component in pv systems. 】 As the solar street light system an important part of the core components, its working performance directly affects the whole function of solar street light system. According to the design requirements, the controller in the startup time determined according to the state of battery charging mode, charging if the battery is in a state have put into ascension charging mode; If the battery is under-voltage state into direct charge mode; If the battery in a floating state into floating mode, if the battery itself overpressure continued to stay in the overpressure alarm state. When the complete ascension or straight after filling, controller into floating state, when the battery voltage due to the electricity load and fell to below fill continuously return point, the controller back into direct charge state. At this point, if the load continues to electricity and solar panels 【 Solar panels, 太阳能板) Is by absorbing sunlight, the solar radiation through the photoelectric effect or photochemical effect directly or indirectly converted into electrical energy device, the main material of most of the solar panel as the 'silicon', but because of the production cost is larger, so it widely used, we still have some limitations. 】 Cannot provide enough charge energy storage battery voltage continues to fall to under-voltage and even put some following, solar street lamps controller into the discharge protection, close the load and to improve charging status. In practice, people often hope street lamp in the middle of the night when can reduce brightness, solar street light controller is very well done just that. This one is for the purpose of energy saving, 2 it is to the service life of the solar street lamps, and can make the street lamps remain the same under the different brightness of color temperature. Recommended reading: solar street lamps controller works