一台变频器连锁两台电机,怎么接线

2025-04-07 13:18:03
推荐回答(2个)
回答1:

用1台变频器控制两台电机是可以作到的,一般在冶金项目上的传动轨道电机都是这样控制的,但在操作前应当注意以下几点:
1变频器功率的选择(变频器的功率要大于等于各电机功率的总合),
2控制方式的选择(一般都是用VF控制无速度反馈的开环控制),
3参数设置。
a设置电机的电流值为所有使用电机的电流值总和;
b设置电机的电压、频率值为一台电机的电压、频率值。

回答2:

变频器输出的频率和输出电压是对应的。
试想,仅从理论上,不考虑两台并联的危险性和其它情况。两台电机并联可以理解为两个电机的同位置线圈并联起来了,并联电阻就比单台电机小,在不变的电压下,电流就增大,功率也就增大。根据p=u*u/r,u不变,那么功率就增大1倍。
因此你没必要修改。计算出来是多少就是多少。

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