Authors:
Nikolajs Bogdanovs
1
;
Romualds Belinskis
2
;
Andris Krūminš
3
;
Ernests Petersons
2
and
Aleksandrs Ipatovs
2
Affiliations:
1
Building Automation Department, Lafivents LTD, Bauskas street 58 Street, Riga, Latvia, Department of Transport Electronics and Telematics, Riga Technical University, Riga and Latvia
;
2
Department of Transport Electronics and Telematics, Riga Technical University, Riga and Latvia
;
3
Faculty of Civil Engineering, Institute of Heat, Gas and Water Technology, Riga Technical University, Riga and Latvia
Keyword(s):
PID Regulator, Smith Predictor, Transfer Function, PLC Controller.
Related
Ontology
Subjects/Areas/Topics:
Adaptive Signal Processing and Control
;
Control and Supervision Systems
;
Distributed Control Systems
;
Energy Efficiency and Green Manufacturing
;
Engineering Applications
;
Industrial Engineering
;
Informatics in Control, Automation and Robotics
;
Intelligent Components for Control
;
Intelligent Control Systems and Optimization
;
Intelligent Design and Manufacturing
;
Optimization Algorithms
;
Precision Engineering
;
Quality Control and Management
;
Real-Time Systems Control
;
Robotics and Automation
;
Signal Processing, Sensors, Systems Modeling and Control
Abstract:
The analysis of a problem of development of control systems for objects with big time delay is carried out in this work. For such objects it is difficult to provide high-quality control, because the control is carried on the last status of object’s output. The main setup methods of PID regulators have been examined. Based on this analysis the technique of complete synthesis of the regulator of higher level is given in order to regulate building’s heating system. This work offers a new method of object’s control with distributed delay. As the test bed for the offered structure of control the valve of hot water supply in a heat-node is used. Using the test bed the stability of the system with time delay have been studied, which is controlled by the PID regulator assisted by Smith Predictor used to compensate the dead time.