基于智能PID整定的温度控制系统设计  

Based on the smart pid temperature control system design in

作　　者：康洁[1,2] 

机构地区：[1]太原理工大学信息工程学院,山西太原030024 [2]太原广播电视大学,山西太原030000

出　　处：《科学之友（下）》2010年第6期1-3,共3页Friend of Science Amateurs

摘　　要：电阻炉是一个特性参数随炉温变化而变化的被控对象,炉温控制具有大惯性、大滞后、时变性的特点。传统的PID难以达到较高要求,故文章应用一种参数自适应模糊PID控制方法,根据系统误差E和误差变化率EC对参数的要求在线整定PID参数KP、KI、KD。在用MATLAB仿真过程中,该控制器比常规PID具有良好的动、静态特性。As the model parameters of resistance furnace vary with temperature, it show some character of big inertial, pure delay and inconstancy. The traditional method can＇t meet the higher technological requirements. Therefore, this paper applies a Parameter Self- tuning Fuzzy PID Controller＇s method to rectify the parameters of PID controller online to meet the command in the case with variation error and its variance ratio. Based on theMATLAB, a powerful simulation platform, the practice proves that the method has better steady accuracy and tracking performance than the traditional.

关 键 词：MATLAB PID控制 模糊控制 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]