Ccharacteristics of Solar battery
by：Power Kingdom 2020-08-25
The solar battery is & lsquo; Battery & rsquo; In the application of solar photovoltaic power generation, at present there are lead-acid maintenance-free battery, the ordinary lead-acid battery, gel battery and alkaline nickel cadmium battery. Domestic currently widely used solar battery mainly: lead-acid maintenance-free battery and gel battery, the two types of batteries, because of its inherent & other; Free & throughout; Maintenance characteristics and the characteristics of less pollution to the environment, very suitable for use in performance and reliable solar power systems, especially the unattended station. Solar battery should have the following characteristics 1 better deep circulation ability, have had a very good charge and discharge capacity. 2 long life, special process design and colloid electrolyte to ensure long-life battery. 3 is suitable for various environmental requirements, such as high altitude, high temperature, low temperature under different conditions, such as the battery can be normal use. The working principle of solar battery during the day the sun to the solar module, make the solar battery components to produce a certain range of dc voltage, the light energy into electricity, then transmitted to the intelligent controller, through the intelligent controller of overcharge protection, electricity from solar energy components to storage battery; And storage battery will be necessary, the so-called is chemical energy storage battery, a necessary release energy of an electrochemical device. Form the main ingredients of lead-acid batteries are as follows: the anode plate ( Lead oxide. PbO2) - - -> Active material of cathode plate ( Spongy lead. Pb) - - -> Active substances (electrolyte Dilute sulphuric acid) - - -> Sulfuric acid ( H2SO4) + water ( H2O) Battery shell isolation plate (other Liquid suppository. The lid, etc. ) The use of solar battery and maintenance ( 1) Optimum temperature 15 ~ 20 ℃ ( 2) Solar battery connection method is: will the solar battery positive electrode connected to the positive and negative and the cathode. This solar battery power will be doubled, and voltage with a solar battery voltage. Solar battery polarity column must not short circuit ( Meet) 。 ( 3) For new installations or refurbished after the first solar battery charging, charging for a long time, as the initial charge, 1/10 should be according to the rated capacity of charging current. Before the installation must be measured whether the battery is enough, such as the shortage of power in sunny places to 8 battery & ndash; 16 hours to charge or the battery is enough, first with the alternating current (ac) should strictly avoid discharge charge. With alternating current (ac) normal charging, had better use graded charging ways, namely, at the beginning of the charging with constant current charge, large current charge to the charging pressure and constant pressure after a certain time to switch to the conventional way of constant pressure and discharge. ( 4) Keep the battery itself clean. Installed solar battery column should be coated with vaseline, prevent corrosion column. ( 5) For solar battery configuration management technology, on-line monitoring for solar battery internal resistance on-line measurement and analysis, timely find the defects of battery, timely maintenance. ( 6) Frosty winter prevent solar battery. Avoid direct sunlight, summer should be put in ventilated gloomy and cold place the solar battery.