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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2021-06-01
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| Series: | Water Supply |
| Subjects: | |
| Online Access: | http://ws.iwaponline.com/content/21/4/1552 |
| _version_ | 1818403652959731712 |
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| 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 |
| collection | DOAJ |
| 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.; |
| first_indexed | 2024-12-14T08:27:40Z |
| format | Article |
| id | doaj.art-2433b585cb8f45119c652e104d4a6562 |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-12-14T08:27:40Z |
| publishDate | 2021-06-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-2433b585cb8f45119c652e104d4a65622022-12-21T23:09:36ZengIWA PublishingWater Supply1606-97491607-07982021-06-012141552156610.2166/ws.2021.032032Suppression of hydraulic transients for desalination plants based on active control synthesisBui Duc Hong Phuc0Sam-Sang You1Hwan-Seong Kim2Sang-Do Lee3 Department of Mechanical Engineering, University of Tulsa, Tulsa, OK 74104, USA Division of Mechanical Engineering, Korea Maritime and Ocean University, Busan 49112, South Korea Division of Logistics, Korea Maritime and Ocean University, Busan 49112, South Korea Division of Navigation and Information Systems, Mokpo National Maritime University, Mokpo, Jeollanam-do 58628, South Korea 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.;http://ws.iwaponline.com/content/21/4/1552hydraulic transientsreverse osmosissliding mode controlwater hammerwater quality |
| spellingShingle | 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 Water Supply hydraulic transients reverse osmosis sliding mode control water hammer water quality |
| title | 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_short | 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 |
| topic | hydraulic transients reverse osmosis sliding mode control water hammer water quality |
| url | http://ws.iwaponline.com/content/21/4/1552 |
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