PID调节器在闭环控制系统中的应用 - 图文

结 论

PID闭环控制是控制系统中应用很广泛的一种控制算法，对大部分控制对象都有良好的控制效果。由富士变频器FRN2.2G1S-4C、水泵电机、富士PI调节器PXR5/9、台湾亚锐公司可编程控制器FAB系列AF-20MR-A、压力变送器组成的单闭环控制系统具有较高的自动化程度。通过对其主电路﹑控制电路的设计，变频器参数的选定，PID参数的整定以及对可编程控制器控制程序的编写，经过调试，系统运行状态良好，具有良好的稳定性、安全性和节能性。

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致 谢

首先衷心的感谢我的论文指导老师石征锦老师。在我做毕业设计的过程中得到了石老师的悉心指导。从设计的开始到论文的定稿，整个过程处处凝结着老师的心血。并在整个论文实验和论文写作过程中，对我进行了耐心的指导和帮助，提出严格要求，引导我不断开阔思路，为我答疑解惑，鼓励我大胆创新，使我在这一段宝贵的时光中，既增长了知识、开阔了视野、锻炼了心态，又培养了良好的实验习惯和科研精神。在此，我向我的指导老师表示最诚挚的谢意！

在这半年的毕业设计的过程中，我还得到了本组同学、本班同学的大力帮助，我们一起学习，一起探讨问题、解决问题，特别感谢合作组员的热心协助。当我遇到困难时，他们给了我许多好的建议和无私的帮助。在此，对所有给予我帮助的同学表示衷心的感谢。

最后，衷心地感谢在百忙之中评阅论文和参加答辩的各位老师!

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参考文献

[1] 李元春.计算机控制系统[M].第2版.北京:高等教育出版社,2009:109-110 [2] 杨英云.PID过程控制简析[J].河北化工,29(8),2004:46-48 [3] 陶永华.新型PID控制及应用[M].北京:机械工业出版社，2006 [4] 王万良.自动控制原理[M].北京:高等教育出版社,2008:5-6 [5] 金以慧.过程控制[M].第1版.北京:清华大学出版社，1993：55-57 [6] 陈伯时.电力拖动自动控制系统[M].北京:机械工业出版社,1992:10-19 [7] 邵裕森,戴先中.过程控制工程[M].北京:机械工业出版社,2007:166-169 [8] 吴中俊，黄永红.可编程控制器原理及应用[M].北京：机械工业出版社，2004 [9] 陈伯时，陈敏逊.交流变频调速系统[M].北京：机械工业出版社，1998 [10] 姚锡禄.变频器控制技术入门与应用实例[M].北京:中国电力出版社,2009:14-40 [11] 魏连荣.变频器应用技术及实例解析[M].北京:化学工业出版社，2008:73-133 [12] 李良仁,王兆晶.变频调速技术与应用[M].北京:电子工业出版社,2004:87-94 [13] 张燕宾.SPWM变频调速应用技术[M].第2版.北京:机械工业出版社,2002:244 [14] 张燕宾.SPWM变频调速应用技术[M].第3版.北京:机械工业出版社,2006:153 [15] Eker，lyas．Operat]on and control of a water supply system．ISA Transactions．2003，2(3)：461-473

[16] J Zou A．P．Energy—saving DesJgn for Frequency Control and Constant Pressure Water SupplySystem in Residen￡ial Area．china water and wastewater,2003．9(8)：7B-7B． [17] K J ASTROM,T HAGGLUND.PID Contorller,2Edition[M].Research Triangle Park,Notth Carolina:Instrument Society of America.1995.

[18] S.Z.HE,H.S.TAN,L.F.XU.Fuzzy Self-tuning of PID Controllers[J].Fuzzy Set and System.1993,56(2).

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附录A 英文原文

PID Control

1 Introduction

The PID controller is the most common form of feedback. It was an essential element of early governors and it became the standard tool when process control emerged in the 1940s. In process control today, more than 95% of the control loops are of PID type, most loops are actually PI control. PID controllers are today found in all areas where control is used. The controllers come in many different forms. There are standalone systems in boxes for one or a few loops, which are manufactured by the hundred thousands yearly. PID control is an important ingredient of a distributed control system. The controllers are also embedded in many special purpose control systems. PID control is often combined with logic, sequential functions, selectors, and simple function blocks to build the complicated automation systems used for energy production, transportation, and manufacturing. Many sophisticated control strategies, such as model predictive control, are also organized hierarchically. PID control is used at the lowest level; the multivariable controller gives the set points to the controllers at the lower level. The PID controller can thus be said to be the “bread and butter of control engineering. It is an important component in every control engineer’s tool box.

PID controllers have survived many changes in technology, from mechanics and pneumatics to microprocessors via electronic tubes, transistors, integrated circuits. The microprocessor has had a dramatic influence the PID controller. Practically all PID controllers made today are based on microprocessors. This has given opportunities to provide additional features like automatic tuning, gain scheduling, and continuous adaptation. 2 The Algorithm

We will start by summarizing the key features of the PID controller. The “textbook” version of the PID algorithm is described by:

t?1de?t???? （2.1） u?t??Ke?t??e???d??Td??dt?Ti0??

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