In the manuscript "Comment on 'A hybrid multi-objective cultural algorithm for short-term environmental/economic hydrothermal scheduling' by Youlin Lu et al. [Energy Convers. Manage. 52 (2011) 2121-2134]&...
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In the manuscript "Comment on 'A hybrid multi-objective cultural algorithm for short-term environmental/economic hydrothermal scheduling' by Youlin Lu et al. [Energy Convers. Manage. 52 (2011) 2121-2134]", Abdollah Ahmad et al. reported that there were some inaccuracies made by Youlin Lu et al. in the paper [Energy Convers. Manage. 52 (2011) 2121-2134] while presenting the solutions. By detailed analysis and checking, the different results in the two papers are caused by taking the storage volume at different moments of one period during hydro generation calculation. Abdollah Ahmad et al. take the final storage volume of the period when doing the calculating, while Youlin Lu et al. take the initial storage volume of the period. The checking results indicate that the schemes in the two papers are correct and reasonable only they are obtained by taking different storage volumes. These schemes have less fuel cost and emission while satisfying various constraints. Moreover, the key references cited in the original paper also take the initial storage volume of the period to calculate hydro generation, which are suitable for the comparison of the optimal results. Finally, few inaccurate expressions in the original paper [Energy Convers. Manage. 52 (2011) 2121-2134] are modified. (C) 2015 Elsevier Ltd. All rights reserved.
This paper aims to discuss the short-term hydrothermal scheduling problem [Energy Convers. Manage. 52 (2011) 2121-2134], while a hybrid multi-objective cultural algorithm (HMOCA) has been employed to solve the present...
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This paper aims to discuss the short-term hydrothermal scheduling problem [Energy Convers. Manage. 52 (2011) 2121-2134], while a hybrid multi-objective cultural algorithm (HMOCA) has been employed to solve the presented problem. This problem has been proposed in a multi-objective framework with fuel cost and emission of thermal units as two objective functions aimed to be minimized, simultaneously. However, there are some inaccuracies made by the authors in the mentioned reference, while presenting the solutions. In this regard, the results obtained for the water discharge rate of hydro units and accordingly, the optimal values derived for the power produced by such units are inaccurate and must be corrected for the optimal hydrothermal scheduling. Therefore, the present paper first highlights these inaccuracies and afterwards, epsilon-constraint technique and lexicographic optimization are used to propose the correct solutions. (C) 2015 Elsevier Ltd. All rights reserved.
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