Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process
The wastewater treatment plant (WWTP) is highly known with the nonlinearity of the control parameters, thus it is difficult to be controlled. In this paper, the enhancement of nonlinear PI controller (ENon-PI) to compensate the nonlinearity of the activated sludge WWTP is proposed. The ENon-PI contr...
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my.utm.542552018-08-03T08:50:51Z http://eprints.utm.my/id/eprint/54255/ Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process Samsudin, Sharatul Izah Rahmat, Mohd. Fuaad Abdul Wahab, Norhaliza TK Electrical engineering. Electronics Nuclear engineering The wastewater treatment plant (WWTP) is highly known with the nonlinearity of the control parameters, thus it is difficult to be controlled. In this paper, the enhancement of nonlinear PI controller (ENon-PI) to compensate the nonlinearity of the activated sludge WWTP is proposed. The ENon-PI controller is designed by cascading a sector-bounded nonlinear gain to linear PI controller. The rate variation of the nonlinear gain k n is automatically updated based on adaptive interaction algorithm. Initiative to simplify the ENon-PI control structure by adapting k n has been proved by significant improvement under various dynamic influents. More than 30% of integral square error and 14% of integral absolute error are reduced compared to benchmark PI for DO control and nitrate in nitrogen removal control. Better average effluent qualities, less number of effluent violations, and lower aeration energy consumption resulted Hindawi Publishing Corporation 2014 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/54255/1/Mohd.FuaadRahmat2014_NonlinearPIcontrolwithadaptive.pdf Samsudin, Sharatul Izah and Rahmat, Mohd. Fuaad and Abdul Wahab, Norhaliza (2014) Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process. Mathematical Problems in Engineering . ISSN 1024-123X https://doi.org/10.1155/2014/475053 DOI: 10.1155/2014/475053 |
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TK Electrical engineering. Electronics Nuclear engineering Samsudin, Sharatul Izah Rahmat, Mohd. Fuaad Abdul Wahab, Norhaliza Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process |
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The wastewater treatment plant (WWTP) is highly known with the nonlinearity of the control parameters, thus it is difficult to be controlled. In this paper, the enhancement of nonlinear PI controller (ENon-PI) to compensate the nonlinearity of the activated sludge WWTP is proposed. The ENon-PI controller is designed by cascading a sector-bounded nonlinear gain to linear PI controller. The rate variation of the nonlinear gain k n is automatically updated based on adaptive interaction algorithm. Initiative to simplify the ENon-PI control structure by adapting k n has been proved by significant improvement under various dynamic influents. More than 30% of integral square error and 14% of integral absolute error are reduced compared to benchmark PI for DO control and nitrate in nitrogen removal control. Better average effluent qualities, less number of effluent violations, and lower aeration energy consumption resulted |
format |
Article |
author |
Samsudin, Sharatul Izah Rahmat, Mohd. Fuaad Abdul Wahab, Norhaliza |
author_facet |
Samsudin, Sharatul Izah Rahmat, Mohd. Fuaad Abdul Wahab, Norhaliza |
author_sort |
Samsudin, Sharatul Izah |
title |
Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process |
title_short |
Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process |
title_full |
Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process |
title_fullStr |
Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process |
title_full_unstemmed |
Nonlinear PI control with adaptive interaction algorithm for multivariable wastewater treatment process |
title_sort |
nonlinear pi control with adaptive interaction algorithm for multivariable wastewater treatment process |
publisher |
Hindawi Publishing Corporation |
publishDate |
2014 |
url |
http://eprints.utm.my/id/eprint/54255/1/Mohd.FuaadRahmat2014_NonlinearPIcontrolwithadaptive.pdf http://eprints.utm.my/id/eprint/54255/ https://doi.org/10.1155/2014/475053 |
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