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如何给太阳能路灯配置计算?
来源:http://www.sdlntyn.com 发布时间:2016-9-1 15:42:13 浏览次数:654
1:一步算出系统电流:
1: the first step to calculate the system current:
如:使用12V蓄电池系统; 30W的大功率LED灯1套。
Such as: the use of 12V battery system; 30W high power LED lamp 1 sets.
电流 =30W÷12V = 2.5 A
Current = 30W / 12V = 2.5 A
2:计算出蓄电池容量需求:
2: calculate the battery capacity needs:
如:太阳能路灯史上更全太阳能路灯知识每晚累计照明时间需要是满负载 6小时(h);
Such as: solar street lighting in the history of the most solar street lighting knowledge of the cumulative lighting time is 6 hours (H) full load;
(如下午7:30开启,夜11:30关闭,凌晨4:00开启,凌晨6:00关闭)
(such as 7:30 pm open, night 11:30 closed, 4:00 am open, 6:00 am closed)
需要满足连续4个阴雨天的照明需求。(4天另加阴雨天前一夜的照明,计5天)
Need to meet the needs of 4 consecutive rainy days of lighting. (4 days plus rainy day night lighting, 5 days)
蓄电池 = 2.5A ×6h ×( 4+1)天 = 2.5A × 30h =75 AH
Battery = 2.5A * 6h * (4 + 1) = 2.5A * 30h = 75 days AH
另外为了防止蓄电池过充和过放,蓄电池一般充电到90%左右;放电余留20%左右。
In order to prevent the battery from overcharge and overdischarge of battery charging, generally up to 90%; the remaining 20% or so discharge.
所以75AH也只是应用中真正标准的70%左右。
So 75AH is only about 70% of the real standard application.
3:计算出太阳能路灯太阳能路灯知识系统中电池板的需求峰值(WP):
3: calculate the solar street lamp solar street lighting system in the peak demand (WP):
太阳能路灯每夜累计照明时间需要为 6小时(h);
6 hours (H) of solar street lighting is required for each night;
电池板组件平均每天接受有效光照时间为4个小时(h);
The battery plate components received an average of 4 hours per day (H) per day;
更少增大对电池板需求20%的预留额。
Increase the amount of 20% of the battery board needs at least.
WP÷17.4V = (2.5A × 6h × 120%)÷ 4h
WP / 17.4V = (2.5A * 6h * 4h 120%).
WP÷17.4V = 4.5
WP / 17.4V = 4.5
WP = 78(W)
WP = 78 (W)
注:4小时每天光照时间为我国大部分地区日照系数。
Note: 4 hours per day light time for most of China's sunshine coefficient.
另外在太阳能路灯组件中,线路损耗、控制器的损耗、恒流源的功耗各有不同,实际应用中可能在5%-25%左右。所以78W也只是理论值,根据实际情况需要有所增加。
In addition, in the solar street lamp assembly, the line loss, the loss of the controller, the power consumption of the constant current source are different, the actual application may be in the 5%-25% or so. So 78W is just a theoretical value, according to the actual situation needs to be increased.
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