施耐德产品140DIO33000C Quantum

140DIO33000C Quantum

140DIO33000C 

＊Ec：电机感应电压，Ke：反电动势系数，N：转速

电机的感应电压Ec是反电动势常数Ke乘以转速N而获得的值。因此，电机的感应电压与转速成正比。

●电机转矩：
＊T：转矩，Kt：转矩常数，Ia：电机电流

电机的转矩T是转矩常数Kt乘以电机电流Ia而获得的值。因此，电机转矩与电流成正比。

●转速和转矩之间的关系：

该公式汇总了上述电机感应电压和转矩的公式，并给出了转速N和转矩T之间的关系。通过公式可以看出，因为Ke和Kt是常数，所以1）当施加扭矩T时，转速N以恒定值减小，并且2）当扭矩T恒定时，转速N与电源电压Ea成正比地增加。

右图中汇总了上面的关系。转矩-转速（T-N）特性是当施加转矩时转速以恒定值减小，也就是成反比。另外，当提高电源电压时，施加到电机的电压将增加，转速提高。当转速为零时转矩大。

转矩-电流（T-I）特性是当施加转矩时，电机电流以恒定值增加，即与施加的转矩成正比。在大转矩时，也就是转速为零时，电机电流大。

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