Print Email Facebook Twitter Distribution Network Reconfiguration Considering the Impacts of Local Renewable Generation and External Power Grid Title Distribution Network Reconfiguration Considering the Impacts of Local Renewable Generation and External Power Grid Author Li, H. (Chongqing University of Technology) Lekić, A. (TU Delft Intelligent Electrical Power Grids) Li, Shan (Chongqing University of Technology) Jiang, Dongrong (Chongqing University of Technology) Guo, Qiang (Chongqing University of Technology) Zhou, Lin (Chongqing University) Date 2023 Abstract The distribution network (DN) reconfiguration is a well-known optimal power flow (OPF) problem. However, with the transition of DN from 'passive' to 'active', new technical challenges arise in DN reconfiguration. This article addresses two key issues in this regard. Firstly, the integration of local renewable generation (LRG) introduces uncertainty into the system-wide power flow of the DN. Secondly, the coupling between DN and the external power grid (EPG) affects the determination of DN root voltage. Consequently, a novel DN reconfiguration approach is proposed in this article. To begin with, an explicit mixed-integer convex OPF model is constructed that incorporates both the EPG and DN sides. Notably, the OPF model embeds the function of local droop control that is provided by LRG. Subsequently, the original OPF model is decomposed, and the distributed optimization methods based on the augmented Lagrangian relaxation are employed. The article comprehensively discusses parallel processing and asynchronous implementation as parts of the distributed optimization procedure. Furthermore, to address the uncertainty related to LRG integration, the extreme scenario method is used to provide a robust decision regarding DN reconfiguration. The application of the extreme scenario method in the distributed OPF model concerning DN reconfiguration is successively developed. Finally, numerical results are presented to demonstrate the acceptable performance of the distributed optimization methods, in terms of optimality and convergence. Also, these are validated that the proposed DN reconfiguration approach exhibits robustness to LRG integration, the system-wide voltage profile is improved, and the active power loss is effectively reduced using the proposed DN reconfiguration approach. Subject Augmented lagrangian relaxationdistribution network reconfigurationexternal power grid (EPG)extreme scenario methodLoad flowlocal renewable energy (LRG)Mathematical modelsMetaheuristicsOptimizationReactive powerUncertaintyVoltage To reference this document use: http://resolver.tudelft.nl/uuid:e08da0b8-609f-47f7-8d9c-4d1440a99664 DOI https://doi.org/10.1109/TIA.2023.3307070 Embargo date 2024-02-05 ISSN 0093-9994 Source IEEE Transactions on Industry Applications, 59 (6), 7771-7788 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2023 H. Li, A. Lekić, Shan Li, Dongrong Jiang, Qiang Guo, Lin Zhou Files PDF Distribution_Network_Reco ... r_Grid.pdf 4.2 MB Close viewer /islandora/object/uuid:e08da0b8-609f-47f7-8d9c-4d1440a99664/datastream/OBJ/view