Journal of Energy Management and Technology

Journal of Energy Management and Technology

Solving the conflict of interests in the placement of transformers in the integrated distribution networks; A stochastic bi-level approach

Document Type : Original Article

Authors
Abdollah Rastgou 1
Ashkan Mohammadi 2
1 Department of Electrical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
2 Department of Electrical Engineering, Eslamabad-E-Gharb Branch, Islamic Azad University, Eslamabad-E-Gharb, Kermanshah, Iran
10.22109/jemt.2025.494125.1535
Abstract
One of the important issues in power system planning is distribution network expansion planning (DNEP). This planning is always done in two steps. In the first step, planning options are suggested by simple mathematical models, and in the second step, these proposed models are subjected to a more detailed analysis, including stability issues. In this paper, a bi-level model is proposed for the DNEP, which can simultaneously consider both steps. At the lower-level, which is the low-voltage network, the expansion planning is done, and at the upper-level, which is the medium-voltage distribution network, the voltage stability index (VSI) is checked. The factor that causes conflict between the two levels is the size and location of distribution transformers so each level tends to determine the location and size of transformers according to its desire. To show the efficiency of the proposed model, in three different scenarios by considering the uncertainty in load demand, the problem is solved and the necessary comparisons are made in this regard.
Keywords
Distribution network expansion planning
Distribution transformers placement
Tabu search algorithm
Uncertainty
Voltage stability index

Subjects

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Journal of Energy Management and Technology
Volume 9, Issue 2
Spring 2025
Pages 79-90

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  • Receive Date 15 December 2024
  • Revise Date 03 April 2025
  • Accept Date 28 April 2025