Density regulation of dense medium separation with multi-rate event-triggered control
YANG Yi-zhuo
WANG Lan-hao
ZHANG Qi-rui
HU Meng-jie
DAI Wei
Abstract：The stable control of suspension density is an important means to ensure the quality of dense medium sepa-ration fine coal.This paper focuses on the actual production of multi-rate sampling control of density loop,and proposes a dense medium separation density control method based on multi-rate event-triggered control method.Firstly,lifting tech-nology and a multi-rate identification method based on continuous learning is adopted to construct the multi-rate model of density loop.Next,a model predictive controller based on event-triggered mechanism is designed,so that the density loop can reduce the updating times of controller on the premise of ensuring control performance,so as to reduce the waste of communication resources.The simulation results show the effectiveness of proposed control method.The study provides a new method for the design of dense medium separation density controller in industrial internet framework.
Keywords：dense medium coal preparationevent-triggeredmulti-ratemodel predictive control
Publication Date：2025-05-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 999-1007 )