Research ArticleGain-scheduling multivariable LPV control of an irrigation canal system

- A multivariable LPV controller with a gain scheduling SP scheme applicable to open-flow canal systems.
- The LPV controller based on SP is designed considering uncertainty in the estimation of delay and the variation of plant parameters according to the operating point.
- The proposed approach can be applied to a class of delay systems represented by a set of models factorized into a rational multivariable model in series with left/right diagonal (multiple) delays
- A multiple pool canal system has been satisfactorily used to test and validate the proposed control approach.

The purpose of this paper is to present a multivariable linear parameter varying (LPV) controller with a gain scheduling Smith Predictor (SP) scheme applicable to open-flow canal systems. This LPV controller based on SP is designed taking into account the uncertainty in the estimation of delay and the variation of plant parameters according to the operating point. This new methodology can be applied to a class of delay systems that can be represented by a set of models that can be factorized into a rational multivariable model in series with left/right diagonal (multiple) delays, such as, the case of irrigation canals. A multiple pool canal system is used to test and validate the proposed control approach.