Development And Application Of Predictive Control Software For Engineering

Predictive control, as a new type of computer algorithm appeared from industrial process control, It is used more and more widely because of its excellent control result. It can reduce the modeling error and the uncertain effect of structure, parameters and circumstance. It can be calculated easily online. And it has perfect control result. So It adapts to industrial process control very much.This paper has developed predictive control function block accord with IEC61131-3, and based on dynamic matrix control (DMC). Predictive algorithm is embedded in software based on IEC 61131-3, and through using predictive control function block, to realize real-time predictive control with practical objects, We have also developed multivariable predictive control software based on DMC. The software is based on windows environment and is made up of five modules: identification, DMC algorithm, controller configuration, simulation, and real-time control. The software can identify the model of the multivariable process, and get the range of parameters of the controller through simulation. It also provides a common interface of ODBC, which can connect the software with configuration software so as to realize real-time control.