IJE TRANSACTIONS A: Basics Vol. 22, No. 4 (November 2009) 333-350   

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J.S. Savier and D. Das*
Department of Electrical Engineering, Indian Institute of Technology
Postal Code 721302, West Bengal, Kharagpur, India
savier_js@yahoo.com – ddas@ee.iitkgp.ernet.in

* Corresponding Author
( Received: August 16, 2008 – Accepted in Revised Form: July 02, 2009 )

Abstract    This paper presents an algorithm based on multi-objective approach for network reconfiguration. Multiple objectives are considered for reduction in the system power loss, deviations of the nodes voltage and transformers loading imbalance, while subject to a radial network structure in which all the loads must be energized and no branch current constraint is violated. These three objectives are integrated into an objective function through weighting factors and the configuration with minimum objective function value is selected for each tie-switch operation. Heuristic rule is also incorporated in the algorithm for selecting the sequence of tie-switch operation. The effectiveness of the proposed method is demonstrated through examples.


Keywords    Distribution System, Network Reconfiguration, Multi-Objective Optimization


چکیده    این مقاله الگوریتمی بر پایه رویکرد چند هدفی برای شکل دهی مجدد شبکه را ارائه می کند. چندین هدف برای کاهش افت توان سیستم بررسی شده، انحراف های ولتاژ گره ها و عدم توازن بارگذاری ترانسفورمرها دنبال می شود، در حالی که ساختار شبکه شعاعی مدنظر است که در آن تمام بارها باید انرژی گذاری شوند و از مرز هیچ یک از حدود(محدودیت های) جریان شاخه ای تجاوز نمی شود. این سه هدف با ضرایب وزنی در یک تابع هدف جمع شده اند و کمترین تابع هدف برای عملکرد هر tie-switch انتخاب شده است. در الگوریتم انتخاب ترتیب عملکرد tie-switch از قانونی ابتکاری استفاده شده است. کارایی روش پیشنهادی با مثال هایی اثبات شده است


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