PID算法和IFC算法在时滞性采样控制系统中的耦合与实现  

Coupling and Realizing PID and IFC in the Time Delaying Sampling Control System

作　　者：武军[1] 

机构地区：[1]西安铁路职业技术学院电气工程系,陕西西安710014

出　　处：《兰州石化职业技术学院学报》2009年第1期17-19,共3页Journal of Lanzhou Petrochemical Polytechnic

摘　　要：锅炉给水pH值要求控制在一定的碱性范围内。pH值控制过程是典型的非线性控制过程，加之主控过程涉及长距离的液体传输和反应器中化学反应包含长时间的潜伏期，导致系统具有严重的时滞性。为此提出并采用变增益三区段非线性PID和积分模糊控制（IFC）算法，利用西门子S7-200PLC进行编程控制，实现了对数据进行滤波处理并采样精确化，最终实现了对加药控制系统的实时自动化。The boiler for the water pH value request control in certain alkalinity scope, the pH value controlled process is the typical misalignment controlled process, in addition the master control process involves the long distance in the liquid transmission and the reactor the chemical reaction contains the long time the incubation period, causes the system to have the serious time viscosity. Therefore proposes and uses changes increases three sector misalignment PID and the＇integral fuzzy control （IFC） algorithm, carries on the programming control using Simens S7 - 200PLC, realized has carried on filter processing and the sampling to the data precise, realized finally to added the medicine control system＇s realtime automation.

关 键 词：PH值控制 PLC 积分模糊控制 数据采样 自动控制 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]