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基于深度学习的配电网设备故障查找与快速复电方法研究

Deep-Learning-Driven Fault Location and Service Restoration for Distribution-Network Apparatus

  • 摘要: 随着配电网结构复杂化与负荷多样化的发展,传统故障查找与复电策略因依赖规则和经验而在精度与效率上受到限制。为解决这一问题,提出一种基于深度学习的配电网设备故障查找与快速复电方法。建立节点能量偏移与复电需求模型,以量化故障状态特征;构建CNN-BiLSTM时空特征融合模型,实现多源信号的高精度故障识别,引入状态重构与强化学习机制优化复电路径。最后通过某变电站进行试点测试,结果表明该方法能有效提升故障定位精度、响应速度及负荷恢复率,提高了配电网设备运行的智能化与稳定性。

     

    Abstract: The growing topological complexity and load heterogeneity of modern distribution networks have exposed the limitations of conventional fault-location and service-restoration schemes that rely on rigid rules and operator experience. To overcome these limitations, this paper proposes a deep-learning-based framework for pinpointing equipment faults and enabling rapid service restoration. First, a node energy-deviation and restoration-demand model is established to quantify fault-state characteristics. Second, a CNN-BiLSTM spatio-temporal feature-fusion network is designed to achieve high-accuracy fault identification from multi-source signals. Third, a state-reconstruction layer and a reinforcement-learning agent are integrated to dynamically optimize the restoration path. Pilot tests conducted at a 110 kV substation demonstrate that the proposed method significantly improves fault-location accuracy, shortens response time, and raises the load-recovery rate, thereby enhancing the intelligence and operational stability of distribution-network equipment.

     

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