Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process
All rights reserved. A combined fuzzy based feedforward (FBF) and bubble size distribution (BSD) based feedback reagent dosage control strategy is proposed to implement the product indices in copper roughing process. A fuzzy theory based feedforward compensator will be used to calculated the reagent...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Ltd
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/34652 |
| _version_ | 1848754281398665216 |
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| author | Zhu, J. Gui, W. Liu, J. Xu, Honglei Yang, C. |
| author_facet | Zhu, J. Gui, W. Liu, J. Xu, Honglei Yang, C. |
| author_sort | Zhu, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | All rights reserved. A combined fuzzy based feedforward (FBF) and bubble size distribution (BSD) based feedback reagent dosage control strategy is proposed to implement the product indices in copper roughing process. A fuzzy theory based feedforward compensator will be used to calculated the reagent dosage in advance to eliminate the influence of large disturbances according to ore grade and handling capacity. Since the bubble size is believed to be closely related to flotation performance and responds to changes in the reagent dosage, using BSD based feedback predictive control calculates the reagent dosage to stabilize the flotation running. Instead of simple statistic feature, the bubble size with non-Gaussian feature is characterized to be probability density function (PDF) by using B-spline. A multi-output least square support vector machine (MLS-SVM) based is then applied to establish a dynamical relationship between the weights of B-spline and the reagent dosage since the weights are interrelated and related to the reagent dosage. A multiple step based optimization algorithm is finally proposed to determine the reagent dosage. Experimental results can show the effectiveness of the proposed method. |
| first_indexed | 2025-11-14T08:37:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-34652 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:37:55Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-346522017-09-13T15:25:11Z Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process Zhu, J. Gui, W. Liu, J. Xu, Honglei Yang, C. All rights reserved. A combined fuzzy based feedforward (FBF) and bubble size distribution (BSD) based feedback reagent dosage control strategy is proposed to implement the product indices in copper roughing process. A fuzzy theory based feedforward compensator will be used to calculated the reagent dosage in advance to eliminate the influence of large disturbances according to ore grade and handling capacity. Since the bubble size is believed to be closely related to flotation performance and responds to changes in the reagent dosage, using BSD based feedback predictive control calculates the reagent dosage to stabilize the flotation running. Instead of simple statistic feature, the bubble size with non-Gaussian feature is characterized to be probability density function (PDF) by using B-spline. A multi-output least square support vector machine (MLS-SVM) based is then applied to establish a dynamical relationship between the weights of B-spline and the reagent dosage since the weights are interrelated and related to the reagent dosage. A multiple step based optimization algorithm is finally proposed to determine the reagent dosage. Experimental results can show the effectiveness of the proposed method. 2016 Journal Article http://hdl.handle.net/20.500.11937/34652 10.1016/j.jprocont.2015.12.003 Elsevier Ltd restricted |
| spellingShingle | Zhu, J. Gui, W. Liu, J. Xu, Honglei Yang, C. Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process |
| title | Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process |
| title_full | Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process |
| title_fullStr | Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process |
| title_full_unstemmed | Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process |
| title_short | Combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process |
| title_sort | combined fuzzy based feedforward and bubble size distribution based feedback control for reagent dosage in copper roughing process |
| url | http://hdl.handle.net/20.500.11937/34652 |