太阳能电池组件串并联组合?

2025-03-27 15:46:06
推荐回答(5个)
回答1:

1.太阳能电池组件串联数Ns

太阳能电池组件按一定数目串联起来,就可获得所需要的工作电压,但是,太阳能电池组件的串联数必须适当。串联数太少,串联电压低于蓄电池浮充电压,方阵就不能对蓄电池充电。如果串联数太多使输出电压远高于蓄电池浮充电压时,蓄电池充电电流也不会有明显的增加。因此,只有当太阳能电池组件的端电压等于合适的蓄电池浮充电压时,才能达到最佳的充电状态。太阳能电池组件串联数Ns计算方法如下:

Ns=VR/Voc=(VF+VD+Vc)/Voc (1)

式中:VR为太阳能电池阵列输出最小电压;Voc为太阳能电池组件的最佳工作电压;VF为蓄电池浮充电压;蓄电池的浮充电压和所选的蓄电池参数有关,应等于在最低温度下所选蓄电池单体的最大工作电压乘以串联的蓄电池数。VD为二极管压降,一般取0.7V;VC为其它因数引起的压降。

2.太阳能电池组件并联数NP

在确定NP之前,先确定以下相关量:

①将太阳能电池阵列安装地点的太阳能日辐射量Ht,转换成在标准光强下的平均日辐射时数H:

H=Ht×2.778/10000h (2)

式中:2.778/10000(h·m2/kJ)为将日辐射量换算为标准光强(1000W/m2)下的平均日辐射时数的系数。

②太阳能电池组件日发电量Qp:

Qp=Ioc×h×Kop×Cz (3)

式中:Ioc为太阳能电池组件最佳工作电流;Kop为斜面修正系数;按太阳能电池组件安装地纬度不同斜面日辐射量修正系数Kop取1.09~1.14;Cz为修正系数,主要为组合、衰减、灰尘、充电效率等的损失,一般取0.8。

③两次最长连续阴雨天之间的最短间隔天数NW,此数据主要考虑要在此段时间内蓄电池需补充的容量Bcb为:

Bcb=A×Q1×N1 (4)

式中:A安全系数,取1.1~1.4;Ql日耗电量,为工作电流乘以日工作小时数;Nl为最长连续阴雨天数。

④太阳能电池组件并联数Np的计算方法为:

Np=(Bcb+Nw×Q1)/(QP×NW) (5)

上式的表达意为并联的太阳能电池组组数,在两次连续阴雨天之间的最短间隔天数内所发电量,不仅供负载使用,还需补足蓄电池在最长连续阴雨天内所亏损电量。

回答2:

太阳能电池组件串并联组合,只要光伏电池板的数量不变,总功率就不会变。不同的串并联方式改变的是光伏阵列输出的电压和电流。这个和普通电池的原理是类似的。

回答3:

太阳能电池方阵的连接有串联并联和串并联混合连接几种方式,当每个单位铁电池组件性能一致时,多个电池组件的并联连接。可在不改变输出电压的情况下,是方阵的输出电流成比例的增加。

回答4:

太阳能电池方阵的连接有串联并联和串并联混合连接几种方式,当每个单位铁电池组件性能一致时,多个电池组件的并联连接。可在不改变输出电压的情况下,是方阵的输出电流成比例的增加。

回答5:

不过我不建议你这样串又并的,如果有一块板没有照射到太阳,就会影响到整体的电流,但是不会烧坏太阳能板,只会减弱电流,建议买成一块30W的,多晶硅的。现在这种也很便宜,一块多晶硅30W的板也就200元左右...

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