MATLAB模糊-PID的电锅炉温度控制及仿真+文献综述
关键字： 模糊PID控制；温度控制；MATLAB；仿真,毕业论文
Fuzzy-PID-based electric temperature control
Abstract：Temperature control is an innovative topic in industry. To different control object, there are different methods and modes. But it is difficult to control well because of characteristics of the temperature itself, such as its great inertia, serious time-lag and the difficulty to establish an accurate mathematical model of the object. A duty in this thesis is to study a kind of appropriate control method to the temperature of the electric boiler. Its technology requirements are: regulating time must be short, overshoot must be small and the control system must be stable. The PID control system and fuzzy control system are simulated by using MATLAB. Experimental results illustrate that the PID control is used in the system, regulating time and overshoot always cannot achieve the specification. When fuzzy control is used, regulating time and overshoot always can achieve the specification, but system cause steady-state error. So it comes to a new method of combining them together. The parameters of Kp, Ki, and Kd are adjust by fuzzy inference. Experimental results illustrate that the fuzzy PID parameters controller achieve the system performance index. The method of fuzzy PID control is a ideal method.
KeyWords：fuzzy-PID control; temperature control; MATLAB; simulation
目 录
1 绪论 1
1.1 课题的提出和意义 1
1.2 温度控制系统控制方案 1
1.3 本文的工作 3
2 模糊PID控制基础 4
2.1 常规PID控制 4
2.1.1 模拟PID控制 4
2.1.2 数字PID控制 5
2.1.3 PID控制器的优缺点 7
2.2 模糊控制 8
2.2.1 模糊控制系统组成 8
2.2.2 模糊控制的工作原理 9
2.2.3 模糊控制系统优缺点 10
2.3 模糊PID控制 10
2.3.1 自适应模糊PID控制基本特性 11
2.3.2 自适应模糊PID控制工作流程 12
3 电锅炉温度控制系统的设计 14
3.1 电锅炉系统数学模型的建立 14