کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
399449 | 1438729 | 2015 | 9 صفحه PDF | دانلود رایگان |
• Determination of individual hydro generation targets.
• Application of long-term hydrothermal system operation planning.
• Approximation of the hydro production function.
• Sigmoidal, nonlinear and piecewise linear modeling.
• We examined this approach by applying it to the Brazilian power system.
This paper presents a comparison of two proposed approaches to model the hydropower production functions (HPF) applied to long-term operation planning problems. The first approach consists of a non-linear approximation that uses a sigmoid function, and the second approach consists of a piecewise linear approximation. In this study, we aimed to disaggregate the target for each subsystem into individualized generation targets. A study case using the Brazilian power system is presented to evaluate both methodologies. The results show that the piecewise linear approach presents a good approximation with a considerably lower computational time.
Journal: International Journal of Electrical Power & Energy Systems - Volume 71, October 2015, Pages 364–372