Resilience-oriented soft open point deployment with topology-variable-based frequency stability constraints for distribution networks

Pengyi Fan, Tao Yu, Ziyao Wang, Zhenning Pan and Yufeng Wu

Applied Energy, 2025, vol. 394, issue C, No S0306261925008505

Abstract: The flexible multi-microgrid cluster offers a promising solution by integrating distributed resources to enhance the resilience of modern distribution networks. Soft open points are crucial for forming flexible multi-microgrid clusters, yet most existing soft open point deployment models neglect transient frequency stability in islanded operations under diverse post-fault scenarios, causing the suboptimal in the solution. To this end, this paper proposes a novel resilience-oriented soft open point deployment model for distribution networks, where the topology-variable-based frequency stability constraints based on the virtual flow method are incorporated. Compared to traditional formulation of frequency constraints that are topologically parameterized, the topology-variable-based frequency stability constraints can be embedded into optimization models containing topological variables, such as network planning or network reconfiguration. This ensures optimality of the deployment model. Case studies on a dual feeder distribution network highlight the importance of considering frequency stability in soft open point deployment and provide a robust framework for enhancing the resilience of modern distribution networks.

Keywords: Soft open point; Flexible multi-microgrid cluster; Distribution networks resilience; Frequency stability (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.apenergy.2025.126120

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