罗克韦尔模块1769-OB16

1769-OB16

绕线型异步电动机的调速方法可以根据需求和实际应用场景的不同选择不同的方法，目前在工业和商业应用中，较为常用的是变频调速和矢量控制调速这两种方法。

为什么绕线式异步电动机要调速

绕线式异步电动机要调速的原因是绕线式异步电动机转子绕组串接了电阻，从而改变了电机的转差率（S），所以要调速。

根据电机转速公式可以得出要想改变电机的转速可以从以下几点入手：

（1）改变电机的极对数；

（2）电机工作电源频率；

（3）电机的转差率；

但是不同的调速方式无非是改变交流电动机的同步转速或不改变同步转速两种。

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