RESEARCH PAPER
Presenting a stochastic framework for resilient self-healing active distribution networks with integrated distributed generation
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1
School of Cyber Science and Engineering, Southeast University, China
2
Inner Mongolia Power Group Mengdian Information & Telecommunication Industry Co., Ltd., China
Submission date: 2024-10-22
Final revision date: 2024-12-22
Acceptance date: 2025-02-19
Online publication date: 2025-02-22
Publication date: 2025-02-22
Corresponding author
Changsheng Wan
School of Cyber Science and Engineering, Southeast University, 211189, Nanjing, China
HIGHLIGHTS
- Proposing a stochastic model to self-healing active networks with graph restructuring.
- Minimizing short-circuit capacity in reconfiguration to enhance resilience to faults.
- Integrating loadability enhancement to prevent voltage collapse and ensure stability.
- Adapting the pelican algorithm for faster convergence & superior optimization results.
- Achieving recovery, loss reduction, and stability via multi-objective optimization.
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ABSTRACT
This study introduces a novel stochastic framework for self-healing active distribution networks, addressing critical challenges posed by the integration of distribution networks (DNs), such as increased short-circuit capacity, voltage instability, and load variability. By employing graph theory for optimal network restructuring and incorporating stochastic programming to account for load uncertainties, the proposed method ensures robust and efficient fault recovery. The framework integrates innovative security enhancements, including adaptive short-circuit capacity minimization and dynamic loadability improvement. Using the pelican optimization algorithm (POA), the method achieves superior performance in real-world scenarios. The proposed framework’s unique integration of stochastic modeling, adaptive security mechanisms, and optimization techniques sets a new benchmark for self-healing smart grids. Simulations on IEEE 33-bus and 83-bus networks demonstrate the framework’s efficacy. The results highlight a 20% reduction in fault recovery time and a 12.5% decrease in power losses.