最新改进的PID控制算法研究精编版

2020年改进的P I D 控制算法研究精编版

改进的PID控制算法研究摘要

PID控制作为历史最为悠久，生命力最强的控制方式一直在生产过程自动化控制中发挥着巨大的作用，在生产过程的自动控制领域中，按照偏差的比例(P)、积分(I)、和微分(D)进行控制的PID的基本控制方式。由于算法简单、鲁棒性好和可靠性高，被广泛应用于工业过程并取得了良好的控制效果。

但是随着科学技术的不断进步和发展，被控对象正变得越来越复杂，而人们对其控制精度的要求却日益提高，然而一般PID控制技术却越来越不适应现代工业对象的变化，由于计算机进入控制领域，用数字计算机代替模拟计算机调节器组成计算机控制系统，用软件实现PID控制算法，而且可以利用计算机的逻辑功能，使PID控制更加灵活。论文首先介绍了PID的基础知识与原理之后介绍了一般PID控制在工业过程控制中经常用到的两种形式，位置式和增量式。之后着重介绍了两种改进的PID控制算法：积分分离PID算法与不完全微分PID算法，比较传统控制算法与改进的算法的优缺点，并基于MATLAB对其进行仿真，讨论仿真结果。

仿真结果表明：积分分离控制算法和不完全微分控制算法可以提高控制精度和消除系统高频干扰等。证明改进的PID控制算法相比一般PID控制算法有很多优点。

关键词：改进PID控制；积分分离；不完全微分

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Improved PID Control Algorithm

Abstract

PID control as the oldest, most viable way to control automation in the production process has played a huge role in the production process of the automatic control field, in accordance with the deviation ratio (P), integral (I), and differential (D) to control the basic PID control method. As the algorithm is simple and robust and reliable, are widely used in industrial processes and achieved a good control effect.

But with the advancement of science and technology and development, the controlled object is becoming more and more complex, but it demands of its control precision is increasing, but the general PID control technology has become increasingly incompatible with the object of change in modern industrial A computer access control field, instead of using digital computer simulation of the computer component computer control system regulator, PID control algorithm with software, and can use the computer’s logic to PID control more flexible. Paper first introduces the basic knowledge and principles of PID after the introduction of the general PID control in industrial process control is often used in two forms, location, type and incremental. After highlighting the two modified PID control algorithm: PID algorithm integral separation incomplete differential PID algorithm with the more traditional control algorithm and the improved algorithm of the advantages and disadvantages, and its simulation based on MATLAB to discuss the simulation results.

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Simulation results show that: Integral control algorithm and incomplete separation of differential control algorithm can improve the control precision and high-frequency interference elimination system. Improved PID control algorithm that compared with the general PID control algorithm has many advantages.

Key words: Improved PID control; integral separation; not fully differential

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