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基于模糊PID的鍋爐水位控制系統研究+PID控制圖

時間:2019-06-01 09:45來源:畢業論文
通過對比仿真圖像得出模糊PID控制方式確實比傳統PID控制方式有更為出色的控制效果,最終希望模糊PID控制方式在實際中有更深入的應用,促進本理論在控制鍋爐水位控制應用方面的推

摘要鍋爐作為工業生產中非常重要的動力設備,其能安全、高效的運行對于鍋爐生產人員的安全及工廠的生產效益有著重要的意義。現階段,各類電廠及鍋爐企業一般使用傳統PID控制鍋爐水位,理論上PID控制方式基本能達標,但是在實際使用中固定的PID參數應對復雜多變的鍋爐系統仍然存在很多缺陷,很多時候需要工作人員去手動操作,控制效果有待提高。模糊控制理論通過總結經驗知識而構造出模糊變量模型,吸取模糊控制和PID控制理論的優勢作用去結合起來,設計出模糊PID控制器,根據其參數可變的特色來調節鍋爐水位,則可能會取得出色的效果。35837
本論文將鍋爐汽包水位的控制作為主要研究對象,首先對鍋爐生產的工藝流程作出敘述,依次分析造成汽包水位不穩定的各種干擾因素。而后指出了汽包水位調節過程中經常發生的“虛假水位”狀況,對其靜態特性和動態特性加以研究分析。針對傳統PID控制與重點研究的模糊PID控制方式來分析并建模,通過仿真軟件MATLAB 下Simulink工具箱來對照觀察仿真圖像,可以看出傳統PID控制方式能滿足最基本的控制要求,但存在許多缺陷像超調量過大、前期振蕩大等。本論文通過對比仿真圖像得出模糊PID控制方式確實比傳統PID控制方式有更為出色的控制效果,最終希望模糊PID控制方式在實際中有更深入的應用,促進本理論在控制鍋爐水位控制應用方面的推廣和發展。35837
畢業論文關鍵詞:   鍋爐汽包水位  虛假水位  PID控制  模糊PID控制
Abstract The boiler is a very important power equipment in the production of industrial, It has important significance for the safety of workers and the production of the plant when it could operate safety and efficiency . At the present stage,all kinds of power plant and enterprise use oftraditional PID control theory to control boiler water level, general PID control mode can meet basic need in theory, but in actual use fixed PID parameters in response to complex boiler system still exist many defects, and many times need staff to manual operation, the control effect remains to be improved. Fuzzy control theory, fuzzy variable model is constructed by summing up experience and knowledge, learn the advantage of the theory of fuzzy control and PID control function to combine, design a fuzzy PID controller, we rely on the alterable parameter characteristics of boiler water level regulation, It chould get good effect.

源`自*六)維[論*文'網www.aftnzs.live


In this paper we set the boiler steam drum water level control as the main research object, first of all to the boiler production process to make narrative, Analysis of various interference factors which cause the boiler drum water level unstable. And then points out the steam drum water level control often occur in the process of "false water level" condition, research on its static characteristic and dynamic characteristic . In view of the traditional PID control and fuzzy PID control way of the key research to the analysis and modeling, the simulation software MATLAB simulink toolbox to contrast observation simulation image, it can be seen that the traditional PID control method can basically meet the minimum control requirements on the water level control, but there are many defects, such as the overshoot amount is too large, the oscillation is too big in the early stage.
This paper concludes that the fuzzy PID control method by comparing the simulation image than traditional PID control method has better control effect, eventually hopes to fuzzy PID control method have further application in practice, promoting the theory in the control of boiler water level control applications and development.
Keywords:Boiler Drum Water Level   False Water Level   Fuzzy  PID Control   PID Control
目   錄 基于模糊PID的鍋爐水位控制系統研究+PID控制圖:http://www.aftnzs.live/zidonghua/20190601/33978.html
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