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摘要在现今电力驱动的自动控制系统中使用比较普及的应该就是调速系统了，随着生产质量、产品工艺需求一直增高和产能需求的增加，越来越多的机器要求能够自动调节速度。在这些调速体系中，直流调速系统具有良好的速度控制特性，速度控制过程平稳，调速范围宽，精度高，过载能力比较大，同时动态性能优秀、方便控制有着很好的启动以及停止。这些优点能满足很多场合的不同生产需要，因此研究直流调速是非常有实际生产意义的。46101
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这篇论文的研究对象就是直流电机调速系统，先是讲述了研究这个课题的实际意义，然后阐述了各种直流调速系统的想法以及分析各种方法的实际意义还有电气结构原理图，最后利用Matlab软件中的Simulink组件来完成建模仿真以及模拟运行的目的。分析并且比较了开环、单闭环、双闭环直流电机调速系统的优缺点。结合实际分析讨论了几种调速系统在当今工业生产过程中能起到哪些作用，以及分别适用于哪些场合，最终得出结论双闭环直流调速系统是最能符合要求并且调速性能最稳定最高效的调速方法。
毕业论文关键词：直流调速系统；MATLAB软件；开环；单闭环；双闭环
Abstract
In modern electric drive automatic control system used in the more popularity should be speed control system, as the production has been increased demand quality, product technology and the growing demand for the production capacity, more and more of the machine can automatically adjust the speed. In the speed regulation system, speed control of dc speed regulation system has good characteristics of speed control process is smooth, wide speed range, high precision, overload capacity is bigger, good dynamic performance at the same time, convenient control had a very good start and stop. These advantages can meet the production needs of many occasions, so the dc speed regulation is very significance to practical production.
The research object of this paper is the dc motor speed control system, the first tells the story of the practical significance of the research on this topic, and then expounds the idea of all kinds of dc speed regulating system and the practical significance of the analysis methods and structure of electric schematic diagram, finally using the Simulink of Matlab software components to complete the purpose of simulation and modeling simulation run. Analysis and comparison of the open loop, single closed loop, the advantages and disadvantages of the double closed loop dc motor speed control system. Combined with the actual analysis of several kinds of speed control system is discussed which plays an role in the modern industrial production process, and is suitable for what occasion, respectively, finally concluded that the double closed loop dc speed control system is the most can conform to the requirements and speed control performance is the most stable and efficient control method.
Keywords: DC speed control system;Open-loop system;Single-loop system;Double-loop system
目 录
第一章 绪论 1
1.1 课题背景 1
1.2概述 1
1.3论文内容 2
1.4本章小结 2
第二章 直流调速系统的理论基础 3
2.1 Matlab/Simulink仿真软件 3
2.2 直流调速的理论基础 3
2.3 开环系统的电气原理 6
2.4 单闭环系统的电气原理 7
2.5 双闭环系统的电气原理 8
2.6 本章小结 9
3.1 开环调速系统的建模与仿真 10
3.1.1 开环建模过程 10
3.1.2 开环系统的仿真 13
3.2 单闭环调速系统的建模与仿真 15