Research on Diagnosis Method of Predictive Control Performance Model Based on Data

Abstract

Predictive control is a sort of advanced control strategy, therefore, the study on diagnosis technology of predictive control performance model has both important theoretical and applicable value for maintaining and increasing predictive controller performance, enhancing the promotion and application of advanced control strategy.This paper mainly introduces the predictive controller performance diagnosis methods based on data, and on this basis, puts forward a kind of based on the performance assessment method of PCA similar factor’s predictive control model. The method by introducing performance characteristics subspace to describe the characteristics of each performance type calculates real time data and PCA similar factor among performance subspace of various data, using classification analysis and taking PCA similar factor as measurement merit determines the type in accordance with diagnosis data and locates the reason that causes the performance reduction of predictive control model. And the paper puts forward the performance assessment method that takes advantage of PSO to gain PCA similar factor parameter, and uses simulation results to test the effectiveness of the method.