3G2A5-ID218||3G2A5-ID218

3G2A5-ID218
3G2A5-ID218
3G2A5-ID218
矢量控制是通过矢量坐标电路控制电动机定子电流的大小和相位，以达到对电动机在d、q、0坐标轴系中的励磁电流和转矩电流分别进行控制，进而达到控制电动机转矩的目的。通过控制各矢量的作用顺序和时间以及零矢量的作用时间，又可以形成各种PWM波，达到各种不同的控制目的。例如形成开关次数少的PWM波以减少开关损耗。目前在变频器中实际应用的矢量控制方式主要有基于转差频率控制的矢量控制方式和无速度传感器的矢量控制方式两种。

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