An automated liquid level control device

1991 ◽  
Vol 68 (8) ◽  
pp. 670
Author(s):  
Leandro Victoria ◽  
Juan Ortega-Navas ◽  
Jose A. Ibanez
Keyword(s):  
Control Device ◽  
Liquid Level ◽  
Level Control ◽  
Liquid Level Control

Liquid Level Control of Four-Tank System Based on Active Disturbance Rejection Technology

Measurement ◽  
2021 ◽  
Vol 175 ◽  
pp. 109146
Author(s):  
Xiangxiang Meng ◽  
Haisheng Yu ◽  
Jie Zhang ◽  
Tao Xu ◽  
Herong Wu
Keyword(s):  
Disturbance Rejection ◽  
Liquid Level ◽  
Level Control ◽  
Active Disturbance Rejection ◽  
Tank System ◽  
Liquid Level Control

scholarly journals RESEARCH OF LIQUID LEVEL CONTROL SYSTEM / SKYSČIO LYGIO VALDYMO SISTEMOS TYRIMAS

2015 ◽  
Vol 7 (3) ◽  
pp. 317-322
Author(s):  
Dominykas Beištaras
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Fuzzy Logic Controller ◽  
Liquid Level ◽  
Water Tank ◽  
Level Control ◽  
Level Control System ◽  
Filling Time ◽  
Control System Model ◽  
Liquid Level Control

This paper presents liquid level control system model and analysis of dynamic characteristics. The system consists of scalar controlled induction motor drive, fuzzy logic controller, water tank and centrifugal pump. Simulink models of water tank, pump and controller are presented. The simulation of the system shows that the use of fuzzy logic controller reduces valve opening time and reservoir filling time. Nagrinėjamas skysčio lygio valdymo sistemos imitacinių modelių sudarymas, analizuojamos dinaminės charakteristikos. Valdymo sistema sudaryta iš skaliariniu būdu valdomos dažninės elektros pavaros su neraiškiosios logikos reguliatoriumi, vandens rezervuaro ir išcentrinio siurblio. Sudaryti rezervuaro, siurblio ir reguliatoriaus Simulink modeliai. Atlikus imitacijas gauta nedimensinė siurblio charakteristika, apibūdinanti siurblio veikimą, esant bet kokiam sukimosi greičiui. Nustatyta, kad sistemoje su neraiškiosios logikos reguliatoriumi vožtuvas yra atidaromas greičiau nei sistemoje su proporcinguoju integraliniu (PI) reguliatoriumi, ir todėl sumažinama rezervuaro pripildymo trukmė.

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