PI controller tuning based on historical data

Abstract

The effects on PI controller tuning related to information quality in input-output datahave been investigated. This is relevant as many industrial control systems store thiskind of data and it is desirable to be able to use them efficiently. Knowing the limitations caused by lack of excitation or high amounts of noise in the data is therefore useful.Two different tuning methods were used in the investigation(the SIMC method and theE-FRIT method). The results indicate that excitation, noise and data compression allaffect tuning results.