Design of Reverse Osmosis Seawater Desalination Control System Based on LADRC
Hongli Liu, Shijia Liu, Lei Shao, Ji Li, Xiaoqi Chen
Available Online July 2016.
- https://doi.org/10.2991/iccia-17.2017.35How to use a DOI?
- Ro, LADRC control, LESO, Energy consumption problem, Liapunov's stability
- 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.
- 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 -