我买了好几个规格的太阳能电池板一块50W一块30W一块10W两块25W的太阳能电池板能串联起来用么

2025-03-15 02:52:10
推荐回答(2个)
回答1:

不建议直接串联起来使用,原因有三:有损电池板寿命以及电流不一致而引起内耗
怎么利用还需要看你是用它们来干什么?
但不管用途,串并联都需要遵循以下原则:
1.串联升压,但电流取决于其中最小者;
2.并联升流,但高电压者会给低电压者充电
3.尽量串联电流相近的电池板;
4.尽量并联电压相近的电池板;
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你所购买的这些都是小组件,电池片都是切片的。无论片大小,数一数每一个电池板有多少小片。拿这个小片数量除以2,即得到该电池板的开路电压,再以其功率除以此电压,即可得到其短路电流。
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我估计你这些都是36片(4*9)18V的
电压恰好相近,电流反而差别很大,因此绝对不要直接串联
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建议你把两块25W的并联之后再与那块50W的串联,剩下的两块就不要一起用了
如果非要用,就把30W的当25W,三块并一起,再与50W的串

回答2:

可以,串联使用计算功率时要按最小的太阳能电池板功率计算。串联使用最好是功率电压是同样的才好呢。

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