Identification and procurement of shaanxi solar street lamps controller

Panels, solar street lamps, solar street light panels, main function is to convert light energy into electrical energy, this phenomenon is called photovoltaic effect. In numerous solar cell more widely and more practical have monocrystalline silicon, polycrystalline silicon and amorphous silicon 3 kinds of solar cells. In too

solar street light board: solar street light board's main function is to convert light energy into electrical energy, which is called the photovoltaic effect. In a number of solar cells, there are three kinds of solar battery is more common and practical, such as monocrystalline silicon, polycrystalline silicon and amorphous silicon. In sunny, sunny, eastern and western regions, it is best to use polycrystalline silicon solar cells. As a result of the polycrystalline silicon solar cell production process is relatively simple, lower than single crystal, the conversion efficiency enhances unceasingly. In a lot of rain, sunshine, a relatively small number of the south, monocrystalline silicon solar cell performance parameters is relatively stable, it is best to use monocrystalline silicon solar cells. When indoor when the sun is very weak, amorphous silicon solar cell is better, because of the amorphous silicon solar cells less demand for solar lighting conditions. First of all, we must first understand any solar lamp products of solar cells. Solar cells there are five main electrical parameters, i. e. , the short-circuit current, open-circuit voltage, peak current, peak voltage and peak power. For ordinary users, five parameters of how do we know it? Let us teach you a simple way to let us know the relative parameters, we can use a multimeter in 12 noon the sun test under the conditions of the five parameters ( Of course, is a little error of measured value) 。 For a single solar cell, it is a p-n junction. It can generate electricity, unless the sun on it. It also has all the characteristics of the PN junction. Under the condition of standard lighting, its nominal output voltage of 0. 48 v. Solar lights used in the solar battery components are composed of multiple solar battery connection. Users can see first solar cells, and know the price of solar lamp, lighting performance and stability. Next, I'll introduce you to charge and discharge controller, load, battery, etc. Solar street lamps to charge and discharge controller; No matter how much solar energy lamp, a good charge and discharge control circuit is necessary. In order to prolong the service life of batteries, must limit the charging and discharging conditions, in order to prevent the battery overcharge and depth of discharge. In addition, due to the unstable input energy, solar photovoltaic power generation system of photovoltaic power generation system in the battery control is more complex than ordinary batteries. To the design of the solar lamp, success or failure often depends on the success or failure of the charge and discharge control circuit. Without good charge and discharge control circuit, solar lamp is impossible to have good performance. Charge and discharge controller must have the following features: reflect to the charging control, charging control, discharge control and temperature compensation. Battery solar street lamps: due to the unstable input energy, solar photovoltaic power generation system need to configure the battery system to work normally, solar energy lamp is no exception, the battery must be configured to work. Generally have lead-acid batteries, nickel cadmium battery and nickel metal hydride batteries. Their capacity to choose direct influence on the reliability of the system and price. The choice of battery capacity in general should follow the following principles: first, under the premise of meeting the night lighting requirement during the day the energy of the solar energy battery components should be stored as much as possible, at the same time, the electricity required to continuous rainy days night lighting should be stored. Battery capacity is too small, cannot satisfy the needs of night lighting. If the storage capacity is too big, will remain the state of power battery, affect the service life of the battery, resulting in waste.