简介几种常用电机调速方式。对应用较好的内反馈高频斩波调速技术的工作原理、功能与特点，以及在工业控制中的应用情况予以介绍。

The article mainly the speed governing technology with internal feedback high frequency chopper wave, including its working principle, function and feature, and application to Industry control.

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为了满足生产工艺实际需要，针对水处理系统中水泵单耗高、资源浪费等问题，提出了一种用DSP数字信号处理器实现闭环控制的内反馈斩波调速解决方案。

To meet the practical needs of production technics, a solve scheme of inherent feedback chopping speed regulation is put forward by using DSP processor to realize closed loop control.

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