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太阳能路灯的系统组成:太阳能电池板(支架)、电池、控制器、LED光源、灯杆等几部分构成。太阳能路灯的价格是根据以上各个组件的具体参数来计算的,下面由太一新能源告诉大家具体的配置计算方式:
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portant; word-wrap: break-word !important;"> 1、计算出电流:
portant; word-wrap: break-word !important;"> 如:12V电池系统;30W的灯2只,共60W。
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portant; word-wrap: break-word !important;"> 电流I=60W÷12V=5A
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portant; word-wrap: break-word !important;"> 2、计算出电池容量:
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portant; word-wrap: break-word !important;"> 如:路灯每夜照明时间为7小时(h)
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portant; word-wrap: break-word !important;"> 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)
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portant; word-wrap: break-word !important;"> 电池=5A×7h×(5+1)天
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portant; word-wrap: break-word !important;"> =5A×42h
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portant; word-wrap: break-word !important;"> =210AH
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portant; word-wrap: break-word !important;"> 另外为了防止电池过充和过放,电池一般充电到95%左右;放电余留20%左右。所以210AH也只是应用中真正标准的75%左右。
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portant; word-wrap: break-word !important;"> 3、电池板的需求峰值(WP):
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portant; word-wrap: break-word !important;"> 路灯每夜照明时间需要为7小时(h);
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portant; word-wrap: break-word !important;"> 如:电池板平均每天接受有效光照时间为4.5小时(h)(注:4.5h为长江中下游附近地区日照系数);
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portant; word-wrap: break-word !important;"> 最少放宽对电池板需求20%的预留额。
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portant; word-wrap: break-word !important;"> WP÷17.4V=(5A×7h×120%)÷4.5h
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portant; word-wrap: break-word !important;"> WP÷17.4V=9.33A
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portant; word-wrap: break-word !important;"> WP=162(W)
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portant; word-wrap: break-word !important;"> 4、简易公式
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portant; word-wrap: break-word !important;"> 太阳能电池组件功率=用电器功率*用电时间/当地峰值日照时间*损耗系数(1.6-2.0)
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portant; word-wrap: break-word !important;"> 电池容量=用电器功率*用电时间/系统电压*阴雨天数*系统安全系数损耗系数(1.6-2.0)

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