As a new type of clean energy, solar energy is highly respected by environmentalists, but "the moon is cloudy and sunny, and the sky is windy and rainy". What should we do when there is no sun? Solar batteries exist for this situation.
Photovoltaic off grid power generation system is a power generation system that uses the principle of photoelectric effect to convert solar energy into electric energy. It is usually composed of solar cell modules, controllers, battery packs, DC / AC inverters, etc.
According to the plan, the function of solar cell module is to convert solar energy into electric energy, supply load work or charge battery pack; The function of the controller is to protect the charging and discharging of the storage battery; Storage battery is used to store electric energy; The function of inverter is to convert direct current into alternating current. In the evening or rainy days, when the solar cell module cannot work, the battery pack will supply power to the load.
The working mode of storage battery can be divided into two types: recycling and floating charge. It is often in the working state of frequent charging and discharging, that is, recycling; If it is often in the charged state, it is used for floating charge, which can make up for the capacity loss of the battery caused by self discharge. VRLA batteries used in photovoltaic power generation systems are recycled.
