A Comprehensive Method for Expansion Planning of Active Distribution System Considering Reliability Assessment

Document Type : Review Article

Authors

1 power systems operation and planning department of Niroo Research Institute (NRI)

2 Niroo research institute

Abstract

Today the application of distributed energy resources (DERs) in distribution system expansion planning (DNEP) problems is more crucial than before. Despite of advantages, the presence of DERs, considering renewable energy sources (RESs) and dispatchable generation (DG) units in DNEP problems, brings more challenges, especially in reliability characteristics. This paper proposes a new DNEP model embedded with a novel reliability assessment approach for active distribution networks (ADN). The proposed method aims to determine the optimal location and capacity of the new generation and distribution assets, responsible for providing power, in both the normal operation and contingency conditions. The load forecast significantly affects the results of the DNEP. The K-means clustering method is used to address the uncertainty of load growth in the planning horizon which is coordinated with a Mixed Integer Linear Programming (MILP) optimization model. The proposed model is applied to the IEEE 33 bus test case, to guarantee its technical and economical effectiveness. The results verify that this model is cost-effective and can increase the robustness of the DN compared with recent similar works.

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AUT Journal of Electrical Engineering

Articles in Press, Accepted Manuscript
Available Online from 26 July 2024

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