Advanced Control Technology Development of Sulfuric Acid-Connecting System Based on Fuzzy Control

The theme of the paper is treatment of discharges of sulfur dioxide from process of petrochemical, aiming at the problems of the long time, none linearity and the precise mathematic that is hard to build, we consider combining the advanced fuzzy control with the traditional automation technology to achieve low cost automatization. According to the principles of fuzzy control and the features of PLC, the paper presents a method of realizing fuzzy control based on the PLC, and suggests a design and ladder program of the fuzzy controller based on Siemens S7-300 PLC, which supply effective automatic control to the data and objects in process control. Setting up the system will supply theory evidence to sulfur dioxide, promoting coordinated development between economy and environment.