Proceedings of the 2nd International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2017)

Design of Reverse Osmosis Seawater Desalination Control System Based on LADRC

Authors
Hongli Liu, Shijia Liu, Lei Shao, Ji Li, Xiaoqi Chen
Corresponding Author
Hongli Liu
Available Online July 2016.
DOI
https://doi.org/10.2991/iccia-17.2017.35How to use a DOI?
Keywords
Ro, LADRC control, LESO, Energy consumption problem, Liapunov's stability
Abstract
According to the complexity of parameters in reverse osmosis desalination system, coupling, nonlinear, time-varying, hysteresis and other characteristics, this paper uses linear active disturbance rejection control (LADRC) to control the temperature and pressure, (because temperature and pressure make a big difference on the equipment and water quality), it aims to reduce the energy consumption of the system. In this paper, the constant temperature and pressure water supply system based on LADRC is established respectively for temperature and pressure. Compared with traditional PID control, the simulation results show that LADRC control is faster than the PID control response, with steady-state precision, better anti-interference ability. At the same time, the stability of second order linear expansion state observer (LESO) in the first order LADRC is proved by the Lyapunov stability method. The application of LADRC control in reverse osmosis control system can realize the real-time tracking of input to output, and make the system in steady state control better, and when the system is in steady state, the consumption of equipment is lowest, thus reducing system energy consumption, which has important practical value and research significance.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
2nd International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2017)
Part of series
Advances in Computer Science Research
Publication Date
July 2016
ISBN
978-94-6252-361-6
ISSN
2352-538X
DOI
https://doi.org/10.2991/iccia-17.2017.35How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Hongli Liu
AU  - Shijia Liu
AU  - Lei Shao
AU  - Ji Li
AU  - Xiaoqi Chen
PY  - 2016/07
DA  - 2016/07
TI  - Design of Reverse Osmosis Seawater Desalination Control System Based on LADRC
BT  - 2nd International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2017)
PB  - Atlantis Press
SN  - 2352-538X
UR  - https://doi.org/10.2991/iccia-17.2017.35
DO  - https://doi.org/10.2991/iccia-17.2017.35
ID  - Liu2016/07
ER  -