直流电动机瞬态运行过程分析

Analysis on the Transient Operation Process of Shunt DC Motor

直流电动机的瞬变过程是“电机学”课程教学中的基本内容 ,也是难点之一。为了得到直流电动机的瞬态特性 ,推导出并励直流电动机的状态方程式 ,利用 MATL AB软件编写仿真程序 ,通过实例对并励直流电动机的几种典型的瞬变过程 :电源反接制动、励磁回路断路、负载突变进行仿真计算 ,对仿真结果进行了分析 ,以帮助学生加深对理论的理解和认识。本文所做的工作对学生尽快掌握 MATL AB语言的应用。

The transient process of DC motor is the basic contents in teaching on course of electrical machine. It is also one of the contents that is difficult for student. In order to obtain the transient performance of DC motor, state equation is exported. This paper uses MATLAB to compose simulation program. The program is applied to simulate few kinds of typical Transient operation process of shunt excited DC motor: supply reversal braking, the field winding opencirciuted, or load sudden change. The simulation calculation is carried through a real example and the simulation results are also analyzed here. It helps students to deepen the comprehension and cognition. The work done in this paper is helpful to get hold MATLAB language and raise level of graduation design.