摘要锅炉是在很多产业是重要的动力器件，如在化工石油中是核心能源设备。甚至于锅炉系统技术足以衡量锅炉的优劣。不能盲目发展经济，要在安全领域使用。避免锅炉不稳定造成事故是对生命财产的保障。计算机系统的加入是历史的必然结果，它将使锅炉进入自动控制领域，让锅炉可以完美运行。对锅炉采用计算机和模糊控制，因为对燃烧有了科学控制，减少了空气污染，降低氧化物燃烧率效果也较佳，并且提升了自动化水平，同时还可提高热效率，种种优势也提高了人们对科学控制的关注，也侧面推动了工业改革。所以，锅炉产业的发展是尤为重要的。49290

本文主要研究锅炉系统的模糊PID控制的设计与分析，并研究锅炉汽包水位的动态特性。分析理解了锅炉汽包水位的控制特性与锅炉的给水流量和蒸汽流量之间的相关联系，得出传递函数以及特性曲线。采用了PID控制与模糊PID控制，并用了MATLAB仿真，结果证实模糊PID稳定时间更短，且超调量更低，综合效果远优于传统PID控制。

该论文有图21幅，表5个，参考文献20篇。

毕业论文关键词：锅炉水位  模糊控制  PID控制  MATLAB

Study of Boiler Water Level Control System Based on Fuzzy PID Control

Abstract  Boiler is an important power device in many industries, such as in the chemical oil is the core of energy equipment. Even the boiler system technology to measure the pros and cons of the boiler. It is the guarantee of the life and property to avoid the instability of the boiler. Can not blindly develop the economy, to be used in the field of security. The accession of the computer system is an inevitable result of history, it will make the boiler into the field of automatic control, so that the boiler can be perfect operation. The boiler using computer and fuzzy control, because of combustion of scientific control, reduces the air pollution, reduce oxide combustion rate effect is good, and to enhance the level of automation, but also can improve the thermal efficiency, various advantages also improves the people pay more and more attention to the scientific control, but also the side to promote the industrial reform. So, the development of boiler industry is particularly important.

This paper mainly studies the design and analysis of fuzzy PID control of boiler system, and studies the dynamic characteristics of boiler drum water level. Analysis of the boiler drum water level control characteristics and the boiler feed water flow and steam flow of the correlation between the transfer function and the characteristic curve. Using the fuzzy compound control method in fuzzy PID, and using the MATLAB simulation, the results confirm that the fuzzy PID is shorter, and the overshoot is lower. The comprehensive effect is far superior to the traditional PID control.

This paper has 21 figures, 5 tables, 20references.

Key Words: Boiler water level  Fuzzy control  PID control  MATLAB

目   录  

摘  要 I

Abstract II

目   录 III

图清单 IV

表清单 IV

1 绪论 1

1.1 课题背景与意义 1

1.2 锅炉控制的研究现状 1

1.3 本文的主要研究内容 2

2 模糊PID控制理论 3

2.1 PID控制理论 3

2.2 模糊控制理论 4