matlab仿真技术在经典控制理论中的应用.doc

matlab仿真技术在经典控制理论中的应用
摘要
本论文主要研究如何根据用户要求的性能指标进行自动控制系统的串联校正设计,而此设计又具有很重要的现实意义。对于给定的线性定常系统,我们通常通过加入串联超前、滞后或超前滞后综合校正装置,以达到提高系统的精度和稳定性的目的。程序包含了稳定性分析、时域响应分析和根轨迹分析三个主要模块,这些模块改变了传统的工程繁杂运算,充分利用计算机集成软件的表现能力,将抽象问题具体化,而且程序易懂,操作简便,对自动控制理论的应用研究具有一定的实用性。本设计可实现如下功能:对一个线性定常系统,根据需求的性能指标,通过本设计可给出系统的串联校正网络,从绘制出的各种响应曲线可以直观地将校正前后的系统进行比较,而仿真实例结果也进一步表明了此设计方法有效性和实用性。
关键词:串联校正;根轨迹;频率特性法;matlab simulink仿真
Abstract
In this paper we will discuss how to design a pensator according to the users’requirements for automatic Control System,which is of a very important practical a given linear regular system,we usually contacted a cascade lead,a cascade lag or a cascade lead—pensator in the purpose of greater precision and stability of the will be also given in this paper is the specific design methodology,which is based on the frequency characteristics method .At the same time, we will visualize the model of the Control System in this process aims to change the traditional plex operations, and to take advantage puter Integrated Software to materialize some abstract problems, easing the operation so as to make it much easier for understanding and e more practical for analyzing the theory of automatic controThe design can achieve the following functions:Our demands for a linear regular system will be realized by inputting them through the we can obviousl