دانلود مقاله ISI انگلیسی شماره 111777
ترجمه فارسی عنوان مقاله

بهینه سازی عملکرد سیستم های آبی با برنامه ریزی یکنواخت پویا برای کاهش ابعاد

عنوان انگلیسی
Optimization of hydropower system operation by uniform dynamic programming for dimensionality reduction
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
111777 2017 38 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Energy, Volume 134, 1 September 2017, Pages 718-730

پیش نمایش مقاله
پیش نمایش مقاله  بهینه سازی عملکرد سیستم های آبی با برنامه ریزی یکنواخت پویا برای کاهش ابعاد

چکیده انگلیسی

As a popular optimization tool for multi-stage sequential decision problems, dynamic programming (DP) has been widely used to handle with hydropower system operation problems. However, the DP computational burden shows an exponential growth with the increasing number of hydroplants, which results in “the curse of dimensionality” and limits its application to resolve large and complex hydropower operation problem. Thus, this paper presents a novel modified DP algorithm called uniform dynamic programming (UDP) to alleviate the dimensionality problem of dynamic programming. In UDP, the uniform design is first used to construct the state variables set of each period by selecting some small but representative discrete state combinations, and then the DP recursive equation is used to find an improved solution for the next computation cycle. The UDP method is tested in the Wu River cascaded hydropower system of southwest China. The results indicate that the proposed UDP algorithm has competitive performance in computational efficiency and convergence speed, which is an effective tool for hydropower operation problem.