کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4945594 1438706 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Peak operation of hydropower system with parallel technique and progressive optimality algorithm
ترجمه فارسی عنوان
عملیات اوج سیستم نیروی برق آبی با تکنیک موازی و الگوریتم بهینه سازی پیشرفته
کلمات کلیدی
مخازن آبرسانی؛ عملیات قله؛ الگوریتم بهینه ی پیشرفت؛ چارچوب چنگال/پیوند؛ محاسبات موازی؛ نفرین ابعاد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
چکیده انگلیسی


- This work is from the actual demand of peak operation in China.
- Parallel possibilities are in POA's two-stage optimization subproblems.
- PPOA is developed to resolve hydropower peak operation problem.
- The time of PPOA for 10-plant system is reduced by 85% in 8-core environment.
- PPOA uses abundant multi-core resources to enhance computational efficiency.

With the rapid economic growth in recent years, the peak operation of hydropower system (POHS) is becoming one of the most important optimization problems in power system. However, the rapid expansion of system scale, refined management and operational constraints has greatly increased the optimization difficult of POHS. As a result, it is of great importance to develop effective methods that can ensure the computational efficiency of POHS. The progressive optimality algorithm (POA) is a commonly used technique for solving hydropower operation problem, but its execution time still grows sharply with the increasing number of hydropower plants, making it difficult to satisfy the efficiency requirement of POHS. To address this problem, a novel efficient method called parallel progressive optimality algorithm (PPOA) is presented in this paper. In PPOA, the complex problem is firstly divided into several two-stage optimization subproblems, and then the classical Fork/Join framework is used to realize parallel computation of subproblems, making a significant improvement on execution efficiency. The simulations in a real-world hydropower system demonstrate that as compared with the standard POA, PPOA can use abundant multi-core resources to reduce execution time while keeping the quality of solution, providing a new alternative to solve the complex hydropower peak operation problem.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Electrical Power & Energy Systems - Volume 94, January 2018, Pages 267-275
نویسندگان
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