Suppression of hydraulic transients for desalination plants based on active control synthesis

This paper proposes a control strategy to stabilize a reverse osmosis desalination system against hydraulic shocks with enhancing productivity and sustainability. First, the effects of hydraulic transients on water quality have been reviewed. The transient waves are approximated by sinusoidal functi...

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Autores principales:	Bui Duc Hong Phuc, Sam-Sang You, Hwan-Seong Kim, Sang-Do Lee
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	hydraulic transients reverse osmosis sliding mode control water hammer water quality Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/2433b585cb8f45119c652e104d4a6562
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spelling	oai:doaj.org-article:2433b585cb8f45119c652e104d4a65622021-11-06T07:15:10ZSuppression of hydraulic transients for desalination plants based on active control synthesis1606-97491607-079810.2166/ws.2021.032https://doaj.org/article/2433b585cb8f45119c652e104d4a65622021-06-01T00:00:00Zhttp://ws.iwaponline.com/content/21/4/1552https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798This paper proposes a control strategy to stabilize a reverse osmosis desalination system against hydraulic shocks with enhancing productivity and sustainability. First, the effects of hydraulic transients on water quality have been reviewed. The transient waves are approximated by sinusoidal functions so that their effects are incorporated into the controlled system as external disturbances. Next, the active control is implemented based on the adaptive super-twisting (STW) sliding mode control (SMC) algorithms. Then, the robust performance is guaranteed whenever the sliding variables reach the sliding surfaces in finite time despite disturbances. The STW SMC scheme is to eliminate the chattering problems for protecting the valves and to improve the convergence precision for water production. The control gains are adaptable to enable formation of an effective controller for dealing with large disturbances such as water hammer during desalination process. The simulation results reveal the superior performances on controlling water product, while eliminating shock waves. Especially, the effect of hydraulic shocks has been dramatically attenuated, hence the plant components are protected to avoid fracture. Finally, the robust stability and performance of the desalination plants are guaranteed against large disturbances to ensure the population with quality water as well as system sustainability. HIGHLIGHTS Hydraulic transients and dynamical analysis have been provided for desalination plants.; Adaptive sliding mode control is applied for suppression of hydraulic shocks.; Active controller provides robust performance and stability ensuring water production efficiency and product quality.; Complete system is implemented with prolonging life expectancy of desalination equipment by sliding mode control.;Bui Duc Hong PhucSam-Sang YouHwan-Seong KimSang-Do LeeIWA Publishingarticlehydraulic transientsreverse osmosissliding mode controlwater hammerwater qualityWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 4, Pp 1552-1566 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydraulic transients reverse osmosis sliding mode control water hammer water quality Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	hydraulic transients reverse osmosis sliding mode control water hammer water quality Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Bui Duc Hong Phuc Sam-Sang You Hwan-Seong Kim Sang-Do Lee Suppression of hydraulic transients for desalination plants based on active control synthesis
description	This paper proposes a control strategy to stabilize a reverse osmosis desalination system against hydraulic shocks with enhancing productivity and sustainability. First, the effects of hydraulic transients on water quality have been reviewed. The transient waves are approximated by sinusoidal functions so that their effects are incorporated into the controlled system as external disturbances. Next, the active control is implemented based on the adaptive super-twisting (STW) sliding mode control (SMC) algorithms. Then, the robust performance is guaranteed whenever the sliding variables reach the sliding surfaces in finite time despite disturbances. The STW SMC scheme is to eliminate the chattering problems for protecting the valves and to improve the convergence precision for water production. The control gains are adaptable to enable formation of an effective controller for dealing with large disturbances such as water hammer during desalination process. The simulation results reveal the superior performances on controlling water product, while eliminating shock waves. Especially, the effect of hydraulic shocks has been dramatically attenuated, hence the plant components are protected to avoid fracture. Finally, the robust stability and performance of the desalination plants are guaranteed against large disturbances to ensure the population with quality water as well as system sustainability. HIGHLIGHTS Hydraulic transients and dynamical analysis have been provided for desalination plants.; Adaptive sliding mode control is applied for suppression of hydraulic shocks.; Active controller provides robust performance and stability ensuring water production efficiency and product quality.; Complete system is implemented with prolonging life expectancy of desalination equipment by sliding mode control.;
format	article
author	Bui Duc Hong Phuc Sam-Sang You Hwan-Seong Kim Sang-Do Lee
author_facet	Bui Duc Hong Phuc Sam-Sang You Hwan-Seong Kim Sang-Do Lee
author_sort	Bui Duc Hong Phuc
title	Suppression of hydraulic transients for desalination plants based on active control synthesis
title_short	Suppression of hydraulic transients for desalination plants based on active control synthesis
title_full	Suppression of hydraulic transients for desalination plants based on active control synthesis
title_fullStr	Suppression of hydraulic transients for desalination plants based on active control synthesis
title_full_unstemmed	Suppression of hydraulic transients for desalination plants based on active control synthesis
title_sort	suppression of hydraulic transients for desalination plants based on active control synthesis
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/2433b585cb8f45119c652e104d4a6562
work_keys_str_mv	AT buiduchongphuc suppressionofhydraulictransientsfordesalinationplantsbasedonactivecontrolsynthesis AT samsangyou suppressionofhydraulictransientsfordesalinationplantsbasedonactivecontrolsynthesis AT hwanseongkim suppressionofhydraulictransientsfordesalinationplantsbasedonactivecontrolsynthesis AT sangdolee suppressionofhydraulictransientsfordesalinationplantsbasedonactivecontrolsynthesis
_version_	1718443781558108160

Suppression of hydraulic transients for desalination plants based on active control synthesis

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