کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4926402 | 1431598 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Exploring the mean-variance portfolio optimization approach for planning wind repowering actions in Spain
ترجمه فارسی عنوان
بررسی رویکرد بهینه سازی سبد واریانس میانگین برای برنامه ریزی اقدامات بازپرداخت باد در اسپانیا
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
The repowering of already installed wind farms is considered one of the most promising and cost-effective short-term strategies to scale-up wind capacity. In this study, we apply Markowitz's mean-variance (MV) portfolio optimization theory to explore alternative repowering actions in Spain. The efficient portfolios - a direct outcome of the MV optimization - offer optimal repowering alternatives to current wind farm generation mixes. They deliver the highest possible average power output (yield) for a given level of supply risk. Different repowering scenarios are considered in this paper that range from a full restructuring of the existing wind generation mix to restricting by certain amounts the percentage of down-/uprating of each reference region. Results show that, depending on the configuration of the MV portfolio optimization problem, hourly fluctuations in the aggregate power supply can be reduced as much as 12-31%, while retaining the current level of energy productivity. In addition, for the level of energy supply risk experienced with the existing portfolio of Spanish wind farms; we can derive more efficient mixes that boost-up productivity by 16-55%. This work aims at providing valuable insight for energy policy-making in the direction of optimally repowering future renewable generation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 106, June 2017, Pages 335-342
Journal: Renewable Energy - Volume 106, June 2017, Pages 335-342
نویسندگان
F.J. Santos-Alamillos, N.S. Thomaidis, J. Usaola-GarcÃa, J.A. Ruiz-Arias, D. Pozo-Vázquez,