Assembly in case 1, LED lights, solar street lamps single channel 40 W, 24 V system; 2, in 4 hour average effective local illumination; 310 hours, the daily discharge time ( 5 PM to 7 PM - As an example) in the morning 4 meet for five days (on rainy days Power up before the rainy night
assembly case 1, LED lights, solar street lamps single channel 40 W, 24 V system; 2, in 4 hour average effective local illumination; 310 hours, the daily discharge time ( 5 PM to 7 PM - As an example) in the morning 4 meet for five days (on rainy days Charging before the rainy night 6 days) 。 There are 24 V = 40 W = 1. 67 battery = 1. 67 x 10 HX computing ( 5 + 1) Day = 1. 67 x 60 H = 100, 20% of the reserve battery charge and discharge capacity; More than 2 A (street light of the actual current Add 20% loss, including the constant current source' Constant current source, ac constant current source, dc constant current source, current generator, big current generator, also called a current source and stable current source, is a kind of wide spectrum, high precision ac current, has quick response speed, high precision of constant current, the long-term stability can work, suitable for all kinds of the nature of the load, Impedance, sensibility, capacitive) Wait for an advantage. 】 , line loss, etc. ) Actual demand for 100, 20% of the reserves and battery capacity, plus 20% of the 100 Ah now 80% * 120% = 150 in fact for 24 V / 150 Ah battery, need two set of the 12 V battery: total 300 Ah plate: 40 w leds, the current is 1. 67 the discharge time 10 hours a day, 5 to 7 p. m. - in the morning For instance) 3, the panel set aside at least 20% 4, 4 hours per day on average calculation of effective local lighting WP [ Wikipedia ( Wikipedia, WP) Is an international open the content of the encyclopedia cooperation program, the wikimedia foundation under the plan, organized by the wikimedia foundation. 】 17 so far. 4 V = ( 1. 67×10 HX120%) Now 4 hours WP = 87 watt constant current source, line loss and other comprehensive loss around 20% of actual loss of the actual demand = 87 * 120% = 104 watt wide actual panel should be 24 v / 104 w, so I need two boards, a total of 12 v, 208 w integration components price: front panel 208 watts, 31 yuan per watt, 6448 yuan 300 ampere hour battery, 7 yuan/AH meter: 2100 RMB 40 watt lights: instrument: RMB 1850 only controller ( ) 150 RMB 6 m light pole 700 yuan of this group of components: 11248 yuan