双闭环直流调速系统的设计与仿真

南京工程学院毕业设计说明书

南京工程学院

本科毕业设计(论文)

题目: 双闭环直流调速系统的设计与仿真研究

专 业: 自动化

班 级: 10自动化1 学 号: 20100710132 学生姓名: 吴杰 指导教师: 张贞艳 起讫日期: 2014.2~2014.5

南京工程学院毕业设计说明书

Graduation Design (Thesis)

Design and Simulation of

Double Loop DC Motor Control System

By Wu Jie

Supervised by

Associate Prof. Zhang zhenyan

Department of Automation Engineering

Nanjing Institute of Technology

May, 2014

南京工程学院毕业设计说明书

摘 要

为了提高运动控制系统在实际工程中的应用效率,本文介绍了直流调速系统的工程设计方法[1],利用 MATLAB软件,对直流调速系统进行数学建模和系统仿真的研究。所给出的仿真方法,可以灵活地调节系统的参数,从而获得理想的设计结果,并对设计出的系统进行分析。

建立调节器工程设计方法所遵循的原则是: 1)概念清楚、易懂。 2)计算公式简明、好记。

3)不仅给出参数计算公式,而且指明参数调节方向。 4)能考虑饱和非线性控制的情况,同时给出简单的计算公式。 5)适合于各种可以简化成典型系统的反馈控制系统[2]。

由于这个课题相对简单,我在里面加入了相关性的内容以丰富本课题的广度和深度。在本设计中,我加入了三种简单的单闭环直流调速系统,并且通过对它们进行仿真分析,比较找出了它们的不足之处,从而更明显地体现了双闭环直流调速系统的优越性。并且通过对两种典型的双闭环直流调速系统进行仿真分析,从而更好地理解和运用双闭环直流调速系统[3]。

关键词:直流电动机;双闭环调速;MATLAB;仿真;直流调速系统;直流脉宽调制;工程设计方法

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南京工程学院毕业设计说明书

ABSTRACT

In order to raise application efficiency of the motion control system in actual project ,this article discussed the engineering design methods of the speed-governing system of DC motor. The mathematical modeling and system simulation of direct current governor system are researched by means of MATLAB platform . The simulation method can adjust the system controller parameters flexibly, so as to achieve the ideal design results, and the design of the system are analyzed.

A controller design method is the principles of: (1)The concept of clear, easy to understand. (2)Simple formula, easy to remember.

(3)Not only gives the parameter calculation formula, and indicates the parameter adjustment direction.

(4)Can consider the saturation nonlinear control, and gives a simple formula. (5)Suitable for all kinds of feedback control systems can be simplified into a typical system.

Because this subject is relatively simple, I joined the correlation content inside to enrich the breadth and depth of the subject. In this design, I added three simple single loop DC speed regulation system, and then analyze them, compared to find their deficiencies, and thus more clearly showed the superiority of double closed loop DC speed regulating system. And through the simulation analysis of two kinds of typical double loop DC speed control system, so as to better understand and use the double loop DC speed control system.

Keywords: DC motor, double closed loop,MATLAB,Simulation,V-M,PWM-M,The engineering design method

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