Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium Optimizer
To better address the reconfiguration problem of distribution networks with distributed generation (DG), a dynamic reconfiguration model is developed that accounts for the time-varying characteristics of both load demand and DG output. First, an enhanced fuzzy C-means clustering method is proposed f...
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MDPI AG
2025-06-01
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| author | Chaoxue Wang Yue Zhang |
| author_facet | Chaoxue Wang Yue Zhang |
| author_sort | Chaoxue Wang |
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| description | To better address the reconfiguration problem of distribution networks with distributed generation (DG), a dynamic reconfiguration model is developed that accounts for the time-varying characteristics of both load demand and DG output. First, an enhanced fuzzy C-means clustering method is proposed for load period partitioning, which integrates spatiotemporal load features and optimal network structure similarity to improve clustering accuracy. Second, an adaptive ordered loop-based feasibility judgment model is developed to filter infeasible and low-quality solutions based on operational constraints. Third, an improved Equilibrium Optimizer (IEO), integrating Tent chaotic initialization, elite sorting, and mutation-crossover strategies, is proposed for multi-objective optimization. The proposed framework is validated on IEEE 33- and 69-bus systems. In the IEEE 33-bus system, it achieves a 44.8% reduction in power losses and a 35.9% improvement in voltage deviation. In the IEEE 69-bus system, power loss is reduced by 40.1%, and voltage deviation by 40.5%, demonstrating the proposed method’s robustness, adaptability, and effectiveness across systems of varying scales. |
| format | Article |
| id | doaj-art-1c40be907aff49a7a633d49a268de80d |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-1c40be907aff49a7a633d49a268de80d2025-08-20T03:26:48ZengMDPI AGApplied Sciences2076-34172025-06-011512642310.3390/app15126423Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium OptimizerChaoxue Wang0Yue Zhang1School of Information and Control Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Information and Control Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaTo better address the reconfiguration problem of distribution networks with distributed generation (DG), a dynamic reconfiguration model is developed that accounts for the time-varying characteristics of both load demand and DG output. First, an enhanced fuzzy C-means clustering method is proposed for load period partitioning, which integrates spatiotemporal load features and optimal network structure similarity to improve clustering accuracy. Second, an adaptive ordered loop-based feasibility judgment model is developed to filter infeasible and low-quality solutions based on operational constraints. Third, an improved Equilibrium Optimizer (IEO), integrating Tent chaotic initialization, elite sorting, and mutation-crossover strategies, is proposed for multi-objective optimization. The proposed framework is validated on IEEE 33- and 69-bus systems. In the IEEE 33-bus system, it achieves a 44.8% reduction in power losses and a 35.9% improvement in voltage deviation. In the IEEE 69-bus system, power loss is reduced by 40.1%, and voltage deviation by 40.5%, demonstrating the proposed method’s robustness, adaptability, and effectiveness across systems of varying scales.https://www.mdpi.com/2076-3417/15/12/6423distribution network reconfigurationload period partitioningdistributed generationadaptive feasibility modelmodified equilibrium optimizermulti-objective optimization |
| spellingShingle | Chaoxue Wang Yue Zhang Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium Optimizer Applied Sciences distribution network reconfiguration load period partitioning distributed generation adaptive feasibility model modified equilibrium optimizer multi-objective optimization |
| title | Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium Optimizer |
| title_full | Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium Optimizer |
| title_fullStr | Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium Optimizer |
| title_full_unstemmed | Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium Optimizer |
| title_short | Dynamic Reconfiguration of Active Distribution Network Based on Improved Equilibrium Optimizer |
| title_sort | dynamic reconfiguration of active distribution network based on improved equilibrium optimizer |
| topic | distribution network reconfiguration load period partitioning distributed generation adaptive feasibility model modified equilibrium optimizer multi-objective optimization |
| url | https://www.mdpi.com/2076-3417/15/12/6423 |
| work_keys_str_mv | AT chaoxuewang dynamicreconfigurationofactivedistributionnetworkbasedonimprovedequilibriumoptimizer AT yuezhang dynamicreconfigurationofactivedistributionnetworkbasedonimprovedequilibriumoptimizer |