Authors:
João Miguel Lemos Chasqueira Nabais
1
and
Miguel Ayala Botto
2
Affiliations:
1
Escola Superior de Tecnologia de Setúbal, Portugal
;
2
Instituto Superior Técnico, Portugal
Keyword(s):
Modeling, Partial differential equations, Saint-Venant equations, Open-channels, Water conveyance systems, Time delay system, Fault tolerant control.
Related
Ontology
Subjects/Areas/Topics:
Industrial Engineering
;
Informatics in Control, Automation and Robotics
;
Modeling, Simulation and Architectures
;
Nonlinear Signals and Systems
;
Robotics and Automation
;
Signal Processing, Sensors, Systems Modeling and Control
;
System Identification
;
Systems Modeling and Simulation
;
Time Series and System Modeling
Abstract:
Water is vital for human life.Water is used widespread from agricultural to industrial as well as simple domestic activities. Mostly due to the increase on world population, water is becoming a sparse and valuable resource, pushing a high demand on the design of efficient engineering water distribution control systems. This paper presents a simple yet sufficiently rich and flexible solution to model open-channels. The hydraulic model is based on the Saint-Venant equations which are then linearized and transformed into a state space dynamic model. The resulting model is shown to be able to incorporate different boundary conditions like discharge, water depth or hydraulic structure dynamics, features that are commonly present on any water distribution system. Besides, due its computational simplicity and efficient monitoring capacity, the resulting hydraulic model is easily integrated into safety and fault tolerant control strategies. In this paper the hydraulic model is successfully v
alidated using experimental data from a water canal setup.
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