欧阳历创编 2024..02.09
课 程 设 计 报 告
时间:2024. 变速积分PID控制系统设计
设计题目
课程名称
姓名 苏丹 设计日期
计算机控制技术B
学号 2008100731
2011年 7月5日
目 录
班级 自动化0803 教师 闫高伟
3.1 硬件设计…………………………………………………………………………….12
3.1.1 系统方框图…………………………………………………………………..12 3.1.2 线路原理图…………………………………………………………………..12 软件编程…………………………………………………………………………… 13
3.2.1 软件流程图………………………………………………………………….14 3.2.2 程序源代码………………………………………………………………….21 第4章 设计仿真与运行分析…………………………………………………………………..21
附录1 线路原理图………………………………………………………………………...28 附录
2 TDN-AC/ACS+教学实验系统介
绍..………………………………………………..28
附录3 参考资料…………………………………………………………………………..30
变速积分PID控制系统设计
欧阳历创编 2024..02.09
欧阳历创编 2024..02.09
摘要
PID校正装置(又称PID控制器或PID调节器)是一种有源校正装置,它是最早发展起来的控制策略之一,在工业过程控制中有着最广泛的应。它具有结构简单、容易实现、控制效果好、鲁棒性强等特点,是迄今为止最稳定的控制方法。它所涉及的参数物理意义明确,理论分析体系完整,并为工程界所熟悉,因而在工业过程控制中得到了广泛应用。从实际需要出发,一种好的PID控制器参数整定方法,不仅可以减少操作人员的负担,还可以使系统处
于最佳运行状态。因此,对PID控制器参数整定法 的研究具有重要的实际意义。
在普通的PID调节算法中,由于积分系数KI是常数,因此,在整个调节过程中,积分增益不变。但系统对积分项的要求是系统偏差大时积分作用减弱以至全无,而在小偏差时则应加强。否则,积分系数取大了会产生超调,甚至积分饱和,取小了又迟迟不能消除静差。改进的PID算法可以有效改变此现象。此采用变速积分可以很好地解决这一问题。本次课程设计基于自动控制原理实验箱(设备
型号:TDN—ACS+),
接好硬件电路以后实现变速积分。并在matlab 6.5完成对变速积分的仿真。
关键词:PID控制算法;变速积分;matlab仿真
Abstract
So far,the PID is the most common control arithmetic. It’s one of the most early developed
欧阳历创编 2024..02.09
欧阳历创编 2024..02.09
control strategy, which is applied to the industry process. Its structure is simple and easy to implement, perfect.The
however, physical
the
control
effect is,
is
parameters
meaning
of ,theoretical analysis of system is integrity, and it is familiar by the engineering sector, which in the industrial process control has been widely used. For the actual needs, a good parameter PID controller tuning method can not only reduce the burden on operators, but also make the system running at best. Therefore, the fixed PID controller parameter tuning study hasimportant practical significance.
In the traditional PID control algorithm, the integral coefficient KI is constant throughout the adjustment process, the integral gain. But the system requirements for the integral term is the system error is large as well as no less integral action, and in the small deviation should be strengthened. Otherwise, the integral coefficient will have a big overshoot, or even integral saturation, whichever is smaller and the delay to eliminate static error. Improved PID algorithm can effectively change this behavior. The use of variable-speed integration can solve this problem. The course design is based on principles of
欧阳历创编 2024..02.09