PLC在三相交流异步电动机变频调速中的应用
Application of PLC in Frequency-conversion Speed Regulating for AC 3-phase Asynchronous Motor
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摘要: 介绍了PLC在三相交流异步电动机变频调速系统方面的应用,给出了系统的软、硬件设计,说明了系统的控制策略和工作原理。Abstract: The application of PLC in system of frequency-conversion speed regulating for AC 3-phase asynchronous motor was introduced in the paper. The design of the system’s software and hardware were given out, and the control method and working principle were expounded.