本文着重阐述直流马达调速系统的变结构设计。研究表明,这种系统不仅具有良好的静态和动态工作特性,系统本身还具有良好的“鲁棒”性,这是优于传统设计方法的。 This article focuses on the DC motor speed control system variable structure design. The research shows that the system not only has good static and dynamic working characteristics, but also has good “robustness”, which is superior to the traditional design method.