Analyses why off-grid solar street light jiangxi dextrys the rainy day 32 days

(1) the residual energy storage and backup: beyond the load demand of photovoltaic energy storage, photovoltaic energy output when weak; When the battery will be sunny unwanted electrical power system, keep at night or rainy day without wind. Solve the power and electricity time

( 1) Residual energy storage and backup: when photovoltaic weak, photovoltaic energy storage over load demand and energy output; That night or rainy day sunny, no wind the rest of the battery will keep system to produce electricity. Solved the problem of the power generation and power consumption time inconsistency. ( 2) Ensure stable power output system: eliminate the fluctuations and pv input power and load demand. All kinds of electric equipment work has its own time and power levels. Solar power and nature of power load matching is impossible. Large storage battery empty and good charge and discharge performance of adjusting photovoltaic power generation system of power and energy provided favorable conditions. ( 3) To improve power quality and reliability: during the voltage fluctuation and flicker and decline to provide instantaneous energy. Production load in the village of pv system is very common. The load capacity is big, and during startup and running will produce surge current and surge current, such as water pump, lawn mower and refrigerators. Low battery internal resistance and good posture characteristic can meet the requirements of inductive load of power supply.