仿真实验在直流调速系统理论教学中的应用

Application of Simulation Experiment in Theory Teaching of DC Speed Control System

直流调速系统教学过程中要分析系统在各种信号作用下转速、电流及一些控制量的变化情况,量值变化过程短暂,控制系统复杂,因此理论分析困难。利用Matlab/Simulink仿真软件建立单闭环调速系统动态结构图、双闭环调速系统电气结构图仿真模型,便于对系统构成及各部分作用的理解,并且能够任意改变条件实时仿真控制过程及控制效果,波形准确,省时省力,对理论教学和系统运行故障分析起到了很好的辅助作用。

In the teaching process of DC speed control system, it is necessary to analyze the changes of speed, current and some control amount under the action of various signals. Since short change processes of values and complex control system, it is difficult for theoretical analysis. Using Matlab/Simulink software to establish the electrical structure simulation models of single closed-loop speed control system dynamic structure diagram and double closed-loop speed control system, which is easier for the understanding of the system structure and function of each part. It can change conditions arbitrarily, make real-time simulation for control process and effect, and obtain accurate waveform, saving time and labor, has played a very good supporting role in the theoretical teaching and the system fault analysis.