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Control of a Reverse Osmosis plant by using a robust PID design based on multi-objective optimization

: Gambier, A.


IEEE Control Systems Society -CSS-; European Union Control Association -EUCA-:
50th IEEE Conference on Decision and Control and European Control Conference, CDC-ECC 2011 : Orlando, Florida, USA, 12 - 15 December 2011
Piscataway: IEEE, 2011
ISBN: 978-1-612-84800-6
ISBN: 978-1-612-84799-3
ISBN: 978-1-612-84801-3
IEEE Conference on Decision and Control and European Control Conference (CDC-ECC) <50, 2011, Orlando/Fla.>
Conference Paper
Fraunhofer IWES ()

Normally, Reverse Osmosis desalination plants (RO plants) include one or two PID (Proportional, Integral, and Derivative) controllers. These controllers usually are not optimally tuned because models are not constant for a long time due to the fact that plant parameters change often. In the current work, the PID controller of the flow rate control loop for permeate is designed by using multi-objective parametric optimization so that the control loop is less sensitive to parameter changes of the plant. Simulation results on a model of a real plant show that the proposed method yields satisfactory performance for wide range of operation conditions.