کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
399997 1438767 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Decomposition–coordination strategy to improve power transfer capability of interconnected systems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Decomposition–coordination strategy to improve power transfer capability of interconnected systems
چکیده انگلیسی

The maximum power transfer across critical corridors or interfaces is limited by various system constraints such as thermal, voltage, and stability limits. In an open transmission access environment, these constraints would be deeply influenced by the interactions among the path flows in different control areas. In particular, small signal stability, commonly in the form of low frequency oscillations, is considered a crucial factor since it limits the power transfer capability of transmission paths in interconnected multi-area systems. Based on such considerations, the focal point of this paper will be a new approach to coordinating the path transfers across multiple control areas, giving exclusive attention to the small signal stability. The differential eigenvalue method is used to derive the damping ratio constraints for satisfying the small signal stability criteria which are linear inequality constraints expressed in terms of the control parameter. Using Bender’s decomposition, the proposed methodology is formulated as a master problem and a set of sub-problems, each associated with one area motivated by the improvement of the overall computational efficiency via parallel processing. The performance of the decomposition–coordination method is illustrated with a 68-bus system from which it might be deduced that inter-area transfer margin could be improved by reasonable rescheduling of the neighboring tie-line flows.


► We present a scheme for coordinating path transfers across multiple control areas.
► We derive the damping ratios for satisfying small signal stability criteria.
► The inter-area transfer margin is improved by decomposition–coordination method.
► The computational efficiency is realized using Bender’s decomposition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Electrical Power & Energy Systems - Volume 33, Issue 10, December 2011, Pages 1638–1647
نویسندگان
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