Predictor-Based Gas Flow Rate Control With Event-Triggered Corrections

Abstract

This paper proposes a solution for controlling a gas flow rate using a diaphragm gas meter as a measuring device that emits a pulse after a certain volume of gas has passed through it, instead of relying on continuous flow rate measurement. The proposed method combines a continuous-time predictor with an event-triggered corrector, taking into account that the interval at which measurements are received is significantly larger than the time constant of the process. The presented algorithm demonstrates the ability to achieve offset-free reference tracking at steady state, as supported by both simulation and experimental results. Additionally, a stability proof is provided.