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Vol. 36 (2026): Journal of Science and Technology – Smart Systems and Devices
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Research article
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Nguyen, T.-A., & Pham, N.-V. (2026). Optimal Conductor Sizing in Active Distribution Networks considering Distributed Generation and Demand Response. Smart Systems and Devices, 36. https://jst.vn/index.php/ssad/article/view/1290

Optimal Conductor Sizing in Active Distribution Networks considering Distributed Generation and Demand Response

Thi-Anh Nguyen1, Nang-Van Pham1,
1 Ha Noi University of Science and Technology, Ha Noi, Vietnam

Main Article Content

Abstract

Along with the advancement of smart grids and the growing integration of decentralized power generation (DG), distribution networks have experienced significant transformations in topology, operation, and control. In this context, the optimal selection of conductor cross-sections is essential for improving the technical performance and economic efficiency of medium-voltage networks. This study proposes a mathematical framework to determine the optimal selection of conductor cross-sections in distribution networks integrated with DG units and shiftable loads (SLs). The formulated objective function seeks to minimize the overall annual cost, encompassing capital investment, maintenance, energy procurement from the transmission grid, and SL implementation costs, as well as costs associated with DG units. The developed model is modeled as a mixed-integer linear programming (MILP) problem, transformed from a mixed-integer nonlinear programming (MINLP) formulation through the simplified distribution power flow (SD) and linearization techniques. The model is tested on on the IEEE 33-node test feeder under three distinct scenarios. Simulations are performed using the GUROBI solver within the GAMS platform. The results highlight the substantial impact of DG and SL integration on conductor sizing and the overall operational costs of distribution networks.

Keywords

Distributed generation (DG), Mixed-integer linear programming (MILP), Optimal conductor size, Shiftable load (SL)

Article Details

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

References

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