推荐回答(1个)
均衡充电和补充电
(1)在下列情况下需对电池组进行均衡充电或补充电;
1)电池系统安装完毕,投入运行前应先对电池组进行补充充电;
2)电池组全浮充运行每三个月,或当有两只以上电池电压低于2.16V时;
3)电池搁置停用时间超出二个月。
(2)均衡充电/补充电的方法推荐如下:
GFM系列蓄电池以2.34V~2.38V/单体,GFMG系列蓄电池以2.35~2.40V/单体充电16~20小时。电池均衡充电时温度补偿系数为-3.5mV/℃/单体。
注意:(1)上述充电时间是指温度范围为20℃~30℃。如果环境温度下降,则充电时间应适当增加,如果环境温度上升,则充电时间应适当减小。
(2)当均衡充电后,对于仍低于2.16V/单体的落后电池,应进行O.1
C10A放电
3-4h,然后以0.1C10
A限流2.38V/单体,GFMG系列电池2.40V/单体恒压均衡充电。
3、在特殊情况下,电池组需尽快充足电,可采用快速充电方法:GFM系列电池:限流值≤O.18C10A,充电电压为2.34V~2.38V/单体;GFMG系列电池:限流值≤O.2C10A,充电电压为2.35~2.40V/单体。
(1)不同放电深度,电池充足电的时间参考(见表2)
表2不同放电深度电池充电所需的时间
放电深度
(%)
恒流充电
电流(A)
恒流转恒压
时间(h)
恒压充电电压
(V/单体)
充电时间
(h)
20
0.10C10
1.6
2.36
12
0.15C10
1.2
2.36
10
50
0.10C10
4.3
2.36
18
0.15C10
3.3
2.36
16
80
0.10C10
6.8
2.36
20
0.15C10
5.5
2.36
18
100
0.10C10
8.7
2.36
24
0.15C10
6.8
2.36
22
注:C10代表10小时率容量值
(2)请正确参考下表设置,开关电源、直流屏参数(见表3)
表3开关电源、直流屏参数设置
参数内容
GFM
GFMG
浮充电压(25℃)
2.24~2.26V/单体
2.25~2.28V/单体
均(再)充电电压(25℃)
2.34~2.38V/单体
2.35~2.40V/单体
充电限流
≤0.15C10(特殊情况下限流值可提高至0.18C10)
≤0.15C10(特殊情况下限流值可提高至0.20C10)
温度补偿系数
-3.5mV/℃/单体
-3.5mV/℃/单体
均浮充转换电流
0.005
C10~0.01
C10A
放电保护电压
1.85V/单体
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