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太阳能电池板与蓄电池之三-配置计算公式 - 深圳太阳能板厂家/工厂,专注太阳能板生产15年-幻启科技(深圳)有限公司

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太阳能电池板与蓄电池之三–配置计算公式

幻启太阳能科技 05/16/2024

一:首先计算出电流:

如:12V蓄电池系统; 30W的灯2只,共60瓦。 电流 = 60W÷12V= 5 A

二:计算出蓄电池容量需求:

如:路灯每夜照明时间9.5小时,实际满负载照明为 7小时(h); 例一:1 路 LED 灯

(如晚上7:30开启100%功率,夜11:00降至50%功率,凌晨4:00后再100%功率,凌晨5:00关闭)

例二:2 路非LED灯 (低压钠灯、无极灯、节能灯、等)

(如晚上7:30两路开启,夜11:00关闭1路,凌晨4:00开启2路,凌晨5:00关闭)

需要满足连续阴雨天5天的照明需求。(5天另加阴雨天前一夜的照明,计6天) 蓄电池 = 5A &TImes; 7h &TImes;( 5+1)天= 5A &TImes; 42h =210 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5%-20%左右。

所以210AH也只是应用中真正标准的70%-85%左右。另外还要根据负载的不同,测出实际的损耗,

实际的工作电流受恒流源、镇流器、线损等影响,可能会在5A的基础上增加15%-25%左右。

三:计算出电池板的需求峰值(WP): 路灯每夜累计照明时间需要为 7小时(h);

★:电池板平均每天接受有效光照时间为4.5小时(h); 最少放宽对电池板需求20%的预留额。

WP÷17.4V =(5A &TImes; 7h × 120%)÷ 4.5h WP÷17.4V =9.33 WP=162(W)

★ :4.5h每天光照时间为长江中下游附近地区日照系数。

另外在太阳能路灯组件中,线损、控制器的损耗、及镇流器或恒流源的功耗各有不同,实际应用中可能在15%-25%左右。所以162W也只是理论值,根据实际情况需要有所增加。想了解更多太阳能面板相关知识,欢迎联系我们,太阳能板生产厂家–幻启科技(深圳)有限公司。

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