An efficient method in distribution networks phase balancing via a sensitivity analysis technique

Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ICEECET03_040

تاریخ نمایه سازی: 6 اسفند 1395

Abstract:

For various reasons a distribution system might be unbalanced, while voltage unbalancing causes some major problems such as abnormal performance of induction motors. Rephasing strategy is the most effective method for phase balancing usually handled by using intelligent techniques. Yet decision space for rephasing strategy is considered all nodes of a feeder that makes crucial convergence challenges. This paper focuses on search space reduction employing a sensitivity analysis criterion, in which the convergence can be guaranteed associated time saving. In order to solve the proposed optimization methodology a modified shuffled frog leaping algorithm (MSFLA) based on a fuzzy multi-objective function is implemented. MSFLA associated with sensitivity analysis criterion is applied to IEEE 123-bus test network. Simulation studies and results analysis confirms the significance of the proposed method in reducing the system costs while improving network phase balancing. To demonstrate the effectiveness of MSFLA, the performance of the proposed methodology is compared with shuffled frog leaping algorithm (SFLA) as well as genetic algorithm (GA).

Keywords:

Phase balancing , Rephasing strategy , Sensitivity analysis , Modified shuffled frog leaping algorithm

Authors

Shirin Soltani

Electrical Engineering Department, Graguate University of Advanced Technology, kerman, Iran

Masoud Rashidinegad

Department of Electrical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

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