A two‑stage recovery strategy for damaged distribution networks considering cold load pick‑up
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Affiliation:

(1. College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2. National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China)

Clc Number:

TM711

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    Abstract:

    The development of intelligent distribution networks has improved the self-healing ability and recovery speed of the power grid. However, when the system encounters large-scale power outages, the recovery process becomes more complex. Therefore, in response to the problem of power interruption in damaged distribution networks, this paper proposes a two-stage recovery strategy for damaged distribution networks that takes into account cold load pick-up (CLPU), aiming to generate a power restoration plan for distribution networks with switch control actions. The first stage generates traditional recovery and distributed power-assisted island power supply recovery plans that support feeder reconfiguration. In the second stage, the optimal switching operation sequence is generated and transformed into a mixed integer linear programming (MILP) problem, which enables the damaged distribution network to quickly recover to its final configuration. Finally, a distribution network recovery strategy is simulated in a multi-feeder 1069-node power system for single- and multi-line faults. The results show that the proposed strategy can effectively generate switching operation sequences, make reasonable use of all resources to quickly recover distribution networks, and improve the recovery speed and capacity of damaged distribution networks.

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张永朋,吴丽珍,魏建平,陈 伟.冷负荷效应下受损配电网两阶段恢复策略[J].电力科学与技术学报英文版,2025,40(2):150-162. ZHANG Yongpeng, WU Lizhen, WEI Jianping, CHEN Wei. A two‑stage recovery strategy for damaged distribution networks considering cold load pick‑up[J]. Journal of Electric Power Science and Technology,2025,40(2):150-162.

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  • Online: June 06,2025
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